Advantages:little impurity,high NaHS content, the export-grade(70%NaHS )content reaches about 71.5%.

Sodium Hydrosulfide

Synonyms: sodium hydrogen sulphide, sodium hydrogen sulfide, sodium sulfhydrate, sodium bisulphide, sodium hydrosulphide, sodium bisulfide

Molecular Formula: NaHS

Molecular Weight: 56.06

CAS No: 16721-80-5 EINECS No: 240-778-0

UN NO.: 2949

CLASS NO.: 8

Packing Group: II                                           

HS Code: 2830.1090

 

Secification:

Item	Standard
Content, % ≥:	72	70
Sodium sulphide,% ≤:	2	3
Sodium sulphite,%≤:	1	1.5
Ferrum,% ≤:	0.003	0.003
Sodium carbonate,% ≤:	0.6	1
Water insolubles,%≤:	0.005	0.005

Packing: in woven bag with plastic lining(net weight is 25kg/bag); in woven bag with plastic lining(net weight is 900/kg or 1000kg/bag) ;in metal or plastic drum (200kg/plastic or metal drum).

Property :Colorless perpendicular crystal with deliquescence;unstalbe,and will melt into black liquid at about 350oC,soluble in water or alcohol,its water solution is strongly alkaline,pure NaHS can be dissolved in Hcl and become clear solution and generate H2S.

 

Use:To produce ammonium sulphate and pesticide ethanethiol,the beneficiation of copper ore,tanning,depilation and tanning;to get rid of the free sulfur inactive carbon desulfurizer; also used in sulfurous acid dyeing.

Sodium Hydrosulfide