Properties: Appearance white granules.
Packaging: 25.0kg/bag. Inner bag is double-layer plastic bag, sealed by heat; outer bag is woven bag, sewn by machine.
Use: Mainly used in engineering plastics, rubber, silicone, chemical cleaning agents, medicines, health food and additive industry.

Item / Index by Company:  

First quality

(Na2S), ω/% ≥

44

(Fe), ω/%  ≤

0.0008

Water insoluble, ω/% ≤

0.04

Sodium carbonate,ω/%  ≤

0.2

（Na2SO3）ω/%  ≤

0.4

（Na2S2O3）ω/%  ≤

0.8