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what's the gas with the smell of ammonia
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cody@jeol.com
science forum beginner


Joined: 23 Mar 2006
Posts: 2

PostPosted: Mon Jun 19, 2006 12:20 pm    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

Re: GC/MS analysis. Try injecting the gas with a gas-tight syringe.
If you have the option, start with a short column in case the gas is
sticky and does not go through the column. Use a longer column if the
gas components are not retained.

If direct injection does not work because the gas is in low
concentration, consider solid-phase microextraction or a headspace
sampler/cryotrap setup.

Given the reaction conditions, it is a real possibility that the gas
will react with the column. You may want to try a deactivated, uncoated
fused-Si column. You won't get separation, but you may get a mass
spectrum.

Good luck!

Shankar Bhattacharyya wrote:
Quote:
beav <BEAVITH1@NETSCAPE.NET> wrote in
news:t6s592d7222vmffvgkc2sgqg7huqrd20ne@4ax.com:

Of the gas under discussion:

these are still mutually exclusive indications.

Not necessarily. The indications may derive from multiple gases, with
unrelated properties. Farooq has proposed an impurity. Perhaps one
should go further and consider multiple components at real, non-impurity
levels.

Like him, I considered gc/ms. No separation is necessary as a
preliminary step. Just shoot some of the gas into the injector port, let
it come off the column, presumably unretained, collect data from time 0,
without a solvent delay and the resultant mass spectra could be
informative.

- Shankar
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Shankar Bhattacharyya
science forum beginner


Joined: 15 Mar 2006
Posts: 7

PostPosted: Sat Jun 17, 2006 12:47 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

beav <BEAVITH1@NETSCAPE.NET> wrote in
news:t6s592d7222vmffvgkc2sgqg7huqrd20ne@4ax.com:

Of the gas under discussion:

Quote:
these are still mutually exclusive indications.

Not necessarily. The indications may derive from multiple gases, with
unrelated properties. Farooq has proposed an impurity. Perhaps one
should go further and consider multiple components at real, non-impurity
levels.

Like him, I considered gc/ms. No separation is necessary as a
preliminary step. Just shoot some of the gas into the injector port, let
it come off the column, presumably unretained, collect data from time 0,
without a solvent delay and the resultant mass spectra could be
informative.

- Shankar
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beav
science forum addict


Joined: 18 Oct 2005
Posts: 63

PostPosted: Fri Jun 16, 2006 6:00 pm    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

Quote:


I did some tests and the results were as follow.
The gas cant make AgCl solved in solution, not as NH3 do; but can
make the AgNO3 solution (colorless and pellucid) change into weak
yellow and pellucid solution. The color is just like the Fe3+ solution.
The smell of the gas isnt as irritative as NH3.
Is it a new kind of gas that hasn't found before?


Br2? I2?

the halogens have the same biting odor. i wouldn't call it ammoniacal
tho. plus the gases are dark and obvious

XRF should have indicated it, if they were present.
Quote:

I have posted your problem in another forum, If I get any useful
information I will post it here. Just thinking:

First use as pure acid/reagents as possible.

(i) Can you do GC-MS of the gas?

It will let you know whether you have single component or a minor
impurity which is imparting ammonia like smell. Secondly mass spectrum
will help in determining what compound you are observing.

(ii) Pass the gas over activated carbon before collecting it over
water. See if the smell disappears. If it does, pass large amounts of
the gas over it to saturate it with the component that is causing this
smell. In this way you can concentrate the smelly component. Can the
gas burn?

Silver compounds are usually colorless, yellow coloration of the silver
nitrate solution is indeed very interesting.

You are about to discover a new gas !!!!!


these are still mutually exclusive indications.
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so110
science forum beginner


Joined: 09 Jun 2006
Posts: 10

PostPosted: Fri Jun 16, 2006 11:34 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

Farooq W 写道:

Quote:
so110 wrote:
beav 写道:

On 14 Jun 2006 20:28:43 -0700, "Farooq W" <farooq.w@gmail.com> wrote:


beavith wrote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.


yeah. i'm stumped.

when you figure it out, please report back to the group.


Farooq: i was just thinking out loud. it can't be an amine. it seems
that this gas has mutually exclusive properties that defy definition.


I did some tests and the results were as follow.
The gas can’t make AgCl solved in solution, not as NH3 do; but can
make the AgNO3 solution (colorless and pellucid) change into weak
yellow and pellucid solution. The color is just like the Fe3+ solution.
The smell of the gas isn’t as irritative as NH3.
Is it a new kind of gas that hasn't found before?

I have posted your problem in another forum, If I get any useful
information I will post it here. Just thinking:

First use as pure acid/reagents as possible.

(i) Can you do GC-MS of the gas?

It will let you know whether you have single component or a minor
impurity which is imparting ammonia like smell. Secondly mass spectrum
will help in determining what compound you are observing.

(ii) Pass the gas over activated carbon before collecting it over
water. See if the smell disappears. If it does, pass large amounts of
the gas over it to saturate it with the component that is causing this
smell. In this way you can concentrate the smelly component. Can the
gas burn?

Silver compounds are usually colorless, yellow coloration of the silver
nitrate solution is indeed very interesting.

You are about to discover a new gas !!!!!

I will do GC-MS later, the gas can't burn. Thank you!
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Borek
science forum Guru Wannabe


Joined: 02 May 2005
Posts: 157

PostPosted: Fri Jun 16, 2006 11:31 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

On Fri, 09 Jun 2006 13:35:32 +0200, so110 <20021121@sina.com> wrote:

Quote:
the gas was of the ammonia smell, colorless. the gas can't be
burned and can produce white deposit in Ca(OH)2 solution butcan't make
the KMnO4(H+) fade. the white deposit can be solvedin acid. inbreathing
the gas can make your throat dry.

Are you sure it is a single compound, not some mixture?

Best,
Borek
--
http://www.chembuddy.com
http://www.ph-meter.info/pH-meter-construction
http://www.terapia-kregoslupa.waw.pl
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Farooq W
science forum Guru Wannabe


Joined: 25 Mar 2005
Posts: 240

PostPosted: Fri Jun 16, 2006 6:22 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

so110 wrote:
Quote:
beav 写道:

On 14 Jun 2006 20:28:43 -0700, "Farooq W" <farooq.w@gmail.com> wrote:


beavith wrote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced....

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.


yeah. i'm stumped.

when you figure it out, please report back to the group.


Farooq: i was just thinking out loud. it can't be an amine. it seems
that this gas has mutually exclusive properties that defy definition.


I did some tests and the results were as follow.
The gas can’t make AgCl solved in solution, not as NH3 do; but can
make the AgNO3 solution (colorless and pellucid) change into weak
yellow and pellucid solution. The color is just like the Fe3+ solution.
The smell of the gas isn’t as irritative as NH3.
Is it a new kind of gas that hasn't found before?

I have posted your problem in another forum, If I get any useful
information I will post it here. Just thinking:

First use as pure acid/reagents as possible.

(i) Can you do GC-MS of the gas?

It will let you know whether you have single component or a minor
impurity which is imparting ammonia like smell. Secondly mass spectrum
will help in determining what compound you are observing.

(ii) Pass the gas over activated carbon before collecting it over
water. See if the smell disappears. If it does, pass large amounts of
the gas over it to saturate it with the component that is causing this
smell. In this way you can concentrate the smelly component. Can the
gas burn?

Silver compounds are usually colorless, yellow coloration of the silver
nitrate solution is indeed very interesting.

You are about to discover a new gas !!!!!
Back to top
so110
science forum beginner


Joined: 09 Jun 2006
Posts: 10

PostPosted: Fri Jun 16, 2006 4:27 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

beav 写道:

Quote:
On 14 Jun 2006 20:28:43 -0700, "Farooq W" <farooq.w@gmail.com> wrote:


beavith wrote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.


yeah. i'm stumped.

when you figure it out, please report back to the group.


Farooq: i was just thinking out loud. it can't be an amine. it seems
that this gas has mutually exclusive properties that defy definition.


I did some tests and the results were as follow.
The gas can’t make AgCl solved in solution, not as NH3 do; but can
make the AgNO3 solution (colorless and pellucid) change into weak
yellow and pellucid solution. The color is just like the Fe3+ solution.
The smell of the gas isn’t as irritative as NH3.
Is it a new kind of gas that hasn't found before?
Back to top
beav
science forum addict


Joined: 18 Oct 2005
Posts: 63

PostPosted: Thu Jun 15, 2006 2:36 pm    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

On 14 Jun 2006 20:28:43 -0700, "Farooq W" <farooq.w@gmail.com> wrote:

Quote:

beavith wrote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.


yeah. i'm stumped.

when you figure it out, please report back to the group.


Farooq: i was just thinking out loud. it can't be an amine. it seems
that this gas has mutually exclusive properties that defy definition.
Back to top
so110
science forum beginner


Joined: 09 Jun 2006
Posts: 10

PostPosted: Thu Jun 15, 2006 10:45 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

Farooq W 写道:

Quote:
beavith wrote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.


yeah. i'm stumped.

when you figure it out, please report back to the group.

I can get the gas under water,which reveals that the gas can't or
can't well be solved in water. I will do further tests to determine the
gas and give the result later.
Thanks for your help!
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Farooq W
science forum Guru Wannabe


Joined: 25 Mar 2005
Posts: 240

PostPosted: Thu Jun 15, 2006 3:28 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

beavith wrote:
Quote:
On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:



PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

I think that amines should _not_ be escaping from hydrochloric acid or
sulfuric acid solutions. BTW, I heard that (never seen one) that some
zeolites (synthetic ones?) smell very badly.

I had earlier suggested that the OP should involve another person and
ask him/her to indicate the nature of the smell. What may be smelling
_like_ ammonia to one might not be smelling like real ammonia at all to
another.

Quote:

yeah. i'm stumped.

when you figure it out, please report back to the group.
Back to top
beavith
science forum beginner


Joined: 19 May 2005
Posts: 23

PostPosted: Wed Jun 14, 2006 4:55 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

On 13 Jun 2006 19:08:52 -0700, "Farooq W" <farooq.w@gmail.com> wrote:

Quote:


PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.

right.....

XRF is sensitive enough to spot As and Sb anyway.

welp. i'm stumped. it has to be something that is released by
acidification. things like PH3, AsH3, SbH3 are too heavily reduced...

H2S is distinctively awful, H2Se and H2Te are pretty awful too,
nothing like NH3.

seeing that XRF isn't really great with first row elements, maybe the
zeolite is packed with an organic amine.... you'd get an ammoniacal
smell upon basifying with Ca(OH)2, moreso if its a primary amine. if
it was secondary or tertiary it'd smell progressively more fishy. you
wouldn't get a precipitate with lime...

mono methyl, ethyl, propyl, butyl amine? nah......

yeah. i'm stumped.

when you figure it out, please report back to the group.
Back to top
Farooq W
science forum Guru Wannabe


Joined: 25 Mar 2005
Posts: 240

PostPosted: Wed Jun 14, 2006 2:08 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

Quote:

PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.

What is the minimum amount of metal that can be detected by XRF? It may
be possible a very small amount of those gases are present, but the
human nose is more sensitive to detect those. A trace of these gases is
supposed to smell very bad.
Back to top
so110
science forum beginner


Joined: 09 Jun 2006
Posts: 10

PostPosted: Wed Jun 14, 2006 12:47 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

beav 写道:

Quote:
On 12 Jun 2006 17:56:52 -0700, "so110" <20021121@sina.com> wrote:


David Stranz ???

"so110" <20021121@sina.com> wrote in
news:1149852931.778212.36560@c74g2000cwc.googlegroups.com:

i heated a mineral in 500 degree, and then put it into the
acid(hydrochloric acid or vitriol ), with the result that some
gas was

produced. the gas was of the ammonia smell, colorless. the gas
can't be burned and can
produce white deposit in Ca(OH)2 solution but can't make the
KMnO4(H+) fade. the white deposit can be solved in acid.
inbreathing the gas can make your throat dry.
the problem is what the gas is.
please leave the answer or mail me (20021...@sina.com) if
you know
the answer.



After reading the rest of your replies, my apologies for assuming you
were simply a student trying to get an easy answer. However, as
others have said, you need to be a lot more clear when asking
questions with such a minimal description - this sounds too much like
a typical exam question.

David

I study the zeolite which is a mixture, which contains Analcime,
feldspar and SiO2, but the Analcime is not the major stage. I
collected the gas under the water (the gas is still with NH3 smell )
and then used it to produce the white deposite. I want to determine the
deposite by XRD, but the test has not been taken. I will give the test
result on net later.


PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?

But the result of XRF didn't reveal there are P,As, or Sb in the
zeolite.
Back to top
beav
science forum addict


Joined: 18 Oct 2005
Posts: 63

PostPosted: Tue Jun 13, 2006 3:11 pm    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

On 12 Jun 2006 17:56:52 -0700, "so110" <20021121@sina.com> wrote:

Quote:

David Stranz ???

"so110" <20021121@sina.com> wrote in
news:1149852931.778212.36560@c74g2000cwc.googlegroups.com:

i heated a mineral in 500 degree, and then put it into the
acid(hydrochloric acid or vitriol ), with the result that some
gas was

produced. the gas was of the ammonia smell, colorless. the gas
can't be burned and can
produce white deposit in Ca(OH)2 solution but can't make the
KMnO4(H+) fade. the white deposit can be solved in acid.
inbreathing the gas can make your throat dry.
the problem is what the gas is.
please leave the answer or mail me (20021...@sina.com) if
you know
the answer.



After reading the rest of your replies, my apologies for assuming you
were simply a student trying to get an easy answer. However, as
others have said, you need to be a lot more clear when asking
questions with such a minimal description - this sounds too much like
a typical exam question.

David

I study the zeolite which is a mixture, which contains Analcime,
feldspar and SiO2, but the Analcime is not the major stage. I
collected the gas under the water (the gas is still with NH3 smell )
and then used it to produce the white deposite. I want to determine the
deposite by XRD, but the test has not been taken. I will give the test
result on net later.


PH3?

its a SWAG, because phosphine burns by itself in air.

how you'd reduce any P in the zeolite with HCl or H2SO4 is a mystery
too


oooo. AsH3? SbH3?
Back to top
so110
science forum beginner


Joined: 09 Jun 2006
Posts: 10

PostPosted: Tue Jun 13, 2006 12:56 am    Post subject: Re: what's the gas with the smell of ammonia Reply with quote

David Stranz 写道:

Quote:
"so110" <20021121@sina.com> wrote in
news:1149852931.778212.36560@c74g2000cwc.googlegroups.com:

i heated a mineral in 500 degree, and then put it into the
acid(hydrochloric acid or vitriol ), with the result that some
gas was

produced. the gas was of the ammonia smell, colorless. the gas
can't be burned and can
produce white deposit in Ca(OH)2 solution but can't make the
KMnO4(H+) fade. the white deposit can be solved in acid.
inbreathing the gas can make your throat dry.
the problem is what the gas is.
please leave the answer or mail me (20021...@sina.com) if
you know
the answer.



After reading the rest of your replies, my apologies for assuming you
were simply a student trying to get an easy answer. However, as
others have said, you need to be a lot more clear when asking
questions with such a minimal description - this sounds too much like
a typical exam question.

David

I study the zeolite which is a mixture, which contains Analcime,
feldspar and SiO2, but the Analcime is not the major stage. I
collected the gas under the water (the gas is still with NH3 smell )
and then used it to produce the white deposite. I want to determine the
deposite by XRD, but the test has not been taken. I will give the test
result on net later.
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