sodium hydrosulfide 70%

Property: Colorless needle-like crystal,easy to be deliquesced,it will decomposed and release hydrogen disulfide at its melting

Molecular formula: NaHS Property: Colorless needle-like crystal,easy to be deliquesced,it will decomposed and release hydrogen disulfide at its melting point,soluble in water and alcohols,its water solution is strongly alkaline,it will generate hydrogen disulfide when reacting with acids.The industrial good is solution,orange or yellow,bitter taste.Use: Used in the synthesis of organic intermediates and in the preparation of auxiliary agent of sulfur dyes;in the waste water treatment;it is the raw material to produce ammonium sulphate and ethanethiol(semi-finished products);used in the copper ore beneficiation,also in the sulfurous acid dyeing of manmade fibres.Packing: 1.   25kg net each in P.P woven bag lined with P.E bag.

Or 150kgs net iron drums.

Standard and control index:

ITEMS	FINE GRADE		FIRST GRADE
	Factory Standard	National Standards	Factory Standard	National Standards
NaHS  (%)         min	70	70	68	68
Na2S(%)          max	1.5	2	2.5	4
Fe  PPM           max	20	30	30	50
Na2SO3(%)      max	1.5	NO	1.5	NO
Na2CO3(%):       max	2	NO	2	NO
Water-Insoluble(%)  max	0.005	NO	0.005	NO

sodium hydrosulfide 70%