to soak the Ni oxide powder fully in sulfuric acid

Hafel · science forum beginner Joined: 02 May 2006 Posts: 7

Hallo, i met a problem that while i leach the nickel oxide powder with
sulfuric acid, the powder will float on the sulfuric acid solution and
make the reaction uncomplete, and also eventhough later the powder
looks wet by the solution but a think layer of bubble/bulking like
nickel oxide powder still can be seen floating on the solution (im
sorry,hard to describe).
In this case, can i use anti-bulk agent to make the powder soak into
the sulfuric acid? or any other way to prevent the floating happen?
Thanks..

Frank · science forum beginner Joined: 21 Aug 2005 Posts: 45

Stir it

Hafel · science forum beginner Joined: 02 May 2006 Posts: 7

Frank wrote:

Frank · science forum beginner Joined: 21 Aug 2005 Posts: 45

Somewhat facetious but serious too. Sometimes you need to disperse
material before reaction or desolution. Like making gravy, you
disperse the flour in cold water first because if you add it to the hot
drippings, you get lumps. Maybe start with cold acid and disperse in
blender first.
Frank

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