Introduction to Sodium Hydroxide
Sodium Hydroxide is a kind of inorganic products with strong basicity, which has strong corrosion to skin, cornea and fiber. It can have neutralization reaction with all kinds of acids. It can absorb chlorine, carbon dioxide. Easily soluble in water, soluble in alcohol and glycerin.
Sodium Hydroxide is a kind of basic chemical materials, widely used in the industries of paper-making, textile, metallurgy, medicine, petroleum and chemical etc..
At present, there are two kinds of technologies for making Sodium Hydroxide: diaphram process and ion film. It has high purity, small content of sodium chloride and ion. So it is widely used in the industries of paper making, chemical ,medicine, chemical fiber and rayon.
Our factory owns production plants for 30,000t/year diaphragm process Sodium Hydroxide and 70,000t/year ion film Sodium Hydroxide. It mainly produces 30%, 50% liquid ion film Sodium Hydroxide.
Quality index of diaphragm process Sodium Hydroxide
Voluntary standards: GB 209-93
|
First quality |
Qualified products |
Sodium hydroxide %≥ |
30.0 |
30.0 |
Sodium carbonate %≤ |
0.4 |
0.6 |
Sodium chloride %≤ |
4.7 |
5.0 |
Ferric oxide %≤ |
0.005 |
0.01 |
Quality index of ion film Sodium Hydroxide
Voluntary standards :Q/SH1085003-2003
|
Type I |
Type II |
Top quality |
First quality |
Qualified products |
First quality |
Qualified products |
Sodium hydroxide % |
50-51 |
30-31 |
Sodium carbonate %≤ |
0.2 |
0.25 |
0.3 |
0.06 |
0.06 |
Sodium chloride % ≤ |
0.01 |
0.015 |
0.02 |
0.007 |
0.01 |
Ferric oxide % ≤ |
0.0015 |
0.002 |
0.003 |
0.0005 |
0.0005 |
Sodium chlorate % ≤ |
|
|
|
0.002 |
0.002 |
Calcium chloride % ≤ |
0.003 |
0.004 |
0.005 |
0.0005 |
0.001 |
Alumina % ≤ |
|
|
|
0.0006 |
0.001 |
Silicon dioxide %≤ |
0.002 |
0.003 |
0.004 |
0.002 |
0.004 |
Sodium sulfate % ≤ |
0.002 |
0.003 |
0.004 |
0.002 |
0.002 |
|
