specifications:

item super first qualified
purity (na2co3) 97.0%min. 96% min. 93.0%min.
fe 0.003%max. 0.005%max. 0.01%max.
water insolubles 0.02%max. 0.03% max. 0.05%max.
free alkal 0.10%max. 0.40% max. 0.60%max.
na2so4 2.5%max.
nacl 0.10%max.

uses: it is used as a desoxydating or bleaching agent for printing and dyeing industry, as a developer for photographic industry. as a lignin-removing agent for paper industry, as a stabilizer for syntheticfiber for textile industry, as a reducing agent for chemical industry, or for electroplating industry etc.

packing: packed in 25kg net plastic woven bag.