Name: 60%min Na2S Sodium Sulphide Red Flakes
Availability: InStock

60%min Na2S Sodium Sulphide Red Flakes

Our good quality Sodium Sulphide Red Flakes 60%min (Sodium Sulfide) also known as smelly alkali, smelly soda, alkali sulfide, is an inorganic compound, the chemical formula Na2S. Soluble in water, insoluble in ether, slightly soluble in ethanol. It burns when touched on skin and hair, so sodium sulfide is commonly known as alkali sulfide. When exposed to air, sodium sulfide emits toxic hydrogen sulfide gas that smells like rotten eggs.

Formule moléculaire :
Na2S
Densité :
1.86g/cm3
Point de fusion :
950ºC
Code SH :
2830101000
Classe de danger :
8
Emballage :
25kg woven bag
Numéro ONU :
1849
Apparence :
Red/Yellow Flakes
Pureté :
60%min

Détails du produit

Basic information

Sodium sulfide (Sodium Sulfide) (alias: alkali sulfide), is a common inorganic chemical raw material. Industrial sodium sulfide because of impurities its color is red and yellow, so it is usually called red sodium sulfide, sodium yellow sulfide.

Specification

ITEM	STANDARD	MF	Na2S
Na2S	60%min	Melting Point	950ºC
Na2CO3	2.0%max	Density	1.86g/cm3
Na2SO3+Na2S2O3	3.0%max	Molecular Weight	78.04
Fe	0.003%max	HS code	2830101000
Water Insoluble	0.05%max	Package	25kg woven bag
Shape	Flakes	Solubility	186 g/L (20ºC)
Color	Red/Yellow	Purity	60%min

Application

1. the dye industry for the production of vulcanized dye, is the raw material of vulcanized blue and blue. Used in the printing and dyeing industry as an aid to dissolving sulphide dyes. In the leather industry, it is used for hydrolysis to remove hair from raw skin, and it is also used to prepare sodium polysulfide to accelerate the immersion of dry skin and help softener. Used in the paper industry as a cooking agent for paper. In the textile industry, it is used for denitrification and nitration reduction of artificial fiber, and mordant for dyeing cotton fabric. The pharmaceutical industry uses phenacetin and other antipyretic drugs. In addition, it is also used to make sodium thiosulfate, sodium hydrosulfide, sodium polysulfide and so on.

2. adding appropriate amount of sodium sulfide in aluminum and alloy alkaline etching solution can significantly improve the quality of the etching surface, but also can be used for the removal of zinc and other alkali-soluble heavy metal impurities in alkaline etching solution.

3. sodium sulfide can also be used in direct plating conductive layer processing, through the reaction of sodium sulfide and palladium to form colloidal palladium sulfide to achieve the purpose of forming a good conductive layer on non-metallic surface.

4. used as corrosion inhibitor. It is also the raw material of sodium thiosulfate, sodium polysulfide, sulfide dyes and so on.

5. used in the manufacture of sulphide dye, leather hair removal agent, metal smelting, photography, rayon denitration.