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Sodium nitrite
Molecular formula:
NaNO2
Physical and chemical properties:
white
or light yellow crystal. It can be easily deliquesced.
Performing standard:
GB2367-90
Specification:
|
Item |
First |
First - class |
Qualified |
|
Appearance |
White or light yellow color crystal |
|
Sodium nitrite (NaNO2) % ¡Ý |
99.0 |
98.5 |
98.0 |
|
H2O
% ¡Ü |
1.8 |
2.0 |
2.5 |
|
Sodium nitrate (NaNO3)
% ¡Ü |
0.80 |
1.00 |
1.90 |
|
Water insoluble matter % ¡Ü |
0.05 |
0.06 |
0.10 |
|
Chloride (NaCI) % ¡Ü |
0.10 |
0.17 |
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Usage:
In pharmaceutical industry, it can be used to manufacture daraprim,
analgin, ¦Ñ-aminosalicylic acid, paracetamol, caffeine,etc.
Sodium nitrite can be used as dyestuff auxiliary, bleaching agent
and also metal heat treatment agent.
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