china-cas no.: 7681-57-4

Date：2021-11-24 Categories：Related Application Product

post date:

nov 24,2021

expiry date:

may 23,2022

detailed description:

cas no. :7681-57-4
quantity: 1000metric tons
specs:96.5%;95.0%

payment method: tt/lc
product name: sodium metabisulfite
einecs no.: 231-673-0
molecular formula: na2s2o5
molecular weight: 190.10
appearance: white or slight yellow crystalline powder
quality standard: hg/t 2826-2008

uses:
printing and dyeing mordant;
dechlorination agent of fabric after bleaching;
chemical, pharmaceutical reductant and sulfonating agent;
bleaching agent of bamboo, wood, paper fiber;
dressing agent of non-ferrous metal;
wastewater treatment;
rubber curing agent
packing: pe bag lined pp woven bag.
net wt: 25, 50, 1000kg/bag.

cas registry number:	7681-57-4
synonyms:	;sodium pyrosulfite;disodium disulphite;sodium metabisulphite;sodium disulphite;sodium pyrosulphite;sodium disulfite;disodium oxidosulfanesulfonate oxide;sodium metabi;metabisulfite sodium;
molecular formula:	na₂s₂o₅
molecular weight:	190.1065
molecular structure:
hazard symbols:	xn:harmful;
risk codes:	r22:; r31:; r41:;
safety description:	s26:; s39:; s46:;