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Standard:GB 534-89
Uses: for industrial sulfuric acid
Technical requirements:
| Index name |
Special Sulfuric acid |
Concentrated sulfuric acid |
| Top-grade |
First grade |
Qualified product |
| Sulfuric acid (H2SO4, % ≥ |
92.5 or 98.0 |
92.5 or 98.0 |
92.5 or 98.0 |
92.5 or 98.0 |
| Free sulfur trioxide(SO3, % ≥ |
-- |
-- |
-- |
-- |
| Ash, % ≤ |
0.02 |
0.03 |
0.03 |
0.10 |
| Fe, % ≤ |
0.005 |
0.010 |
0.010 |
-- |
| As, % ≤ |
8×10-5 |
0.0001 |
0.005 |
-- |
| Pb, % ≤ |
0.001 |
0.01 |
-- |
-- |
| Hg, % ≤ |
0.0005 |
-- |
-- |
-- |
| nitrogen oxide(as N, % ≤ |
0.0001 |
-- |
-- |
-- |
| Sulfur dioxide SO2, % ≤ |
0.01 |
-- |
-- |
-- |
| Cl , % ≤ |
0.001 |
-- |
-- |
-- |
| Transparency, mm ≥ |
160 |
50 |
50 |
-- |
| Chroma , ml ≤ |
1.0 |
2.0 |
2.0 |
-- |
* Juhua industrial Sulfuric acid (Concentrated sulfuric acid ) and (fume Sulfuric acid ) is standard product of Zhejiang province, NO.:ZBCZ10014 and ZBCZ10015. Date:1987(recheck in 1998). It is similar to OCT2184-77.
Molecular formula:H2SO4
Relative molecular mass :98.08
Properties:(fume Sulfuric acid ) is colorless or brown oil thick fume liquid,
Packing & Storage:acidproof jar or ceramic bottle in common wood box;transport in the regulation of railway ministry of China.. Do not mix with inflammable/flammable matter, reductant, alkali, alkali metal and food chemicals. Avoid insolation, rain and high temp..
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