products

Purified Caustic Soda (NaOH)

PRODUCTION AND APPLICATION

Produced through additional purification of diaphragm caustic soda with aqueous ammonia mixture. Applied in the chemical and pharmaceutical industries and in the cellulose industry for the production of viscose fibres.

SPECIFICATION

ITEMS	TYPICAL	RATES
Sodium hydroxide content, %, not less than	49,5	49
Sodium carbonate content, %, not more than	0,2	0,2
Sodium chloride content, %, not more than	0,01	0,03
Iron content, %, not more than	0,002	0,0035
Silicon acid content, as SiO₂, %, not more than	0,01	0,01
Sodium sulphate content, %, not more than	0,015	0,02
Sodium chlorate content, % not more than	0,0005	0,0005
Ammonia content, NH3 %, not more than	0,0020	0,0030

The methods of analysis are under ASTM- Е 29.

PACKING AND TRANSPORT

Filled in railway and road tankers proyided for sodium hydroxide protective coating. It is transported in ship tankers, too.

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