Structure formula
|  NaOH (Cautic Soda) | USE | Application for textile and inorganic chemistry industry Metal,
soap/detergent, foods, paper making, electricity/electronics
Waterworks/sewerage and process water/waste water treatment | Physical/chemical property
| Appearance
| Transparent liquid | Odor
| No odor | Acidity(pH)
| 14(5% Sol.) | Solubility
| Soluble | Boiling point | 289°F(143°C) | Melting point
| Very irregular up to its density | Steam pressure | 2.2mmHg(60°C) | Specific gravity | 1.54(40% :1.43, 50% :1.53 at20°C) |
| Specification
| Item
| UNit
| Standard | | KS1 | KS2 | | NaOH | wt% | Above 45
| Above 45 | NaCl
| wt% | Above 0.1 | Below 0.28 | | Na2CO3 | wt%
| Above 1.0 | Below 1.0 | Fe2O3
| wt% | Above 0.005 | Below 0.01 |
| Packing
| Container / tank lorry |
|
Structure formula
| NaOH (Cautic SodaFLAKE) | Use | Raw material of rayon, paper, pulp, soap, synthetic textile and etc.
Treatment agent for acid material, neutralizer of acid solution
Intermediate substance of dye, perfumery, agrichemical, medicine
application Electrolyte of alkali storage battery As a food additive,
alkali agent and neutralizing agent | Physical/chemical property
| - White and transparent solid, water adsorption when exposed in air
- Formation of soda carbonate if reacting with carbonic acid gas in air
- Soluble in methyl alcohol, ethyl alcohol and glycerin | Specification
| | Section | Caustic soda (70%) | Caustic soda (98%) | For industrial use
| Purity above70%
Na2CO3 2%Max
NaCl 0.15% Max
Fe2O3 0.005%NMax | Purity above98% Na2CO3 2%Max
NaCl 0.15% Max
Fe2O3 0.005%NMax | Food additive (before production)
| Purity 70%
Na2CO3 2% Max Aarsenic(As2O3)4ppm Max Heavy metal(Pb) 30ppm Max
| Purity 98%
Na2CO3 2% Max Aarsenic(As2O3)4ppm Max Heavy metal(Pb) 30ppm Max Hg 0.1ppm Max |
| Packing
| Container / tank lorry |
|