soluble in water.aqueous solution is alkalescent and release heat. Easy to air-slake it can produce salt when react

Application: sodium carbonate is one of the most important industrial chemicals, widely used in chemicals, glass, metallurgy, papermaking, printing and dyeing, syndet, petrochemical industry, food, medicine and health and so on. It widely used and have important position in national economy.

The quality specification of food soda ash: GB1886-1992

Index name	second category index
	High class	First class	Qualified product
Alkali%≥	99.2	98.8	98.0
Sodium chloride (NaCI)%≤	0.70	0.90	1.20
Iron (Fe)% ≤	0.0035	0.006	0.010
Sulfate %	0.03
Insoluble matter in water% ≤	0.03	0.10	0.15
COI%≤	0.8	1.0	1.3
Bulk density(g/ml)≥	0.90	0.90	0.90
Size≥	70.0	65.0	60.0

The quality specification of food soda ash: GB1886-1992

item	index
Alkali%≥	99.2
Sodium chloride(NaCI)	0.7
Iron (Fe)%	0.04
Heavy metal (Pb)%	0.01
As%	0.0002
COI%	0.8
Insoluble matter in water%	0.03

The quality specification of food soda ash: GB1886-1992

Light soda ash	Soda ash dense	remarks
	25	PP+ PE or bulk
40	50
750	1000
bulk	bulk

powder soda ash