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Caustic soda 99% min NaOH
Caustic soda
MF:NaOH
Cas no.: 1310-73-2
properties:solid; liquid; white or light blue; strong corrosion, water absorption from the air. uses: mainly used in the fields of metallurgy, petroleum, chemical industry, textile, papermaking, printing and dyeing pharmacy, soap, etc.
Standard of identity: Caustic Solid GB209-93
name of specification /grade | sodium hyroxide by ion membrance process | diaphragrn process | |||
super | 1st | super | 1st | standard | |
NaOH %≥ | 99.5 | 99.0 | 96.0 | 96.0 | 95.0 |
Na2CO3 %≤ | 0.45 | 0.5 | 1.3 | 1.4 | 1.6 |
NaCl %≤ | 0.03 | 0.05 | 2.7 | 2.8 | 3.2 |
Fe2O3 %≤ | 0.004 | 0.006 | 0.008 | 0.01 | 0.02 |
Standard of identity of flaky caustic soda flakes:
name of specification\ grade | membrance process | diaphragrn process |
NaOH %≥ | 99 | 96.0 |
Na2CO3 %≤ | 1.0 | 1.3 |
NaCl %≤ | 0.3 | 2.7 |
Fe2O3 %≤ | 0.01 | 0.008 |
Caustic soda 99% min NaOH