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Sodium sulphide nonahydrate

Tải về

Product details:

- Product Name: Sodium sulphide nonahydrate

- Formulas : Na2S.9H2O

- Chemical composition : China- tech - 25kg

- Product Type: Industry chemicals

Product description :

Sodium sulfide is the chemical compound with the formula Na₂S, or more commonly its hydrate Na₂S·9H₂O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na₂S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na₂S·xH₂O, where a weight percentage of Na₂S is specified. Commonly available grades have around 60% Na₂S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as sodium sulfide flakes. Although the solid is yellow, solutions of it are colorless.

Uses

It is primarily used in pulp and paper industry in the kraft process . It is used in water treatment as an oxygen scavenger agent and also as a metals precipitant, in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching, as a desulfurising and as a dechlorinating agent and in leather trade for the sulfitisation of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of rubber chemicals, sulfur dyes and other chemical compounds. It is used in other applications including ore flotation, oil recovery, food preservative, making dyes, and detergent.

Sodium sulfide is an active ingredient in some over-the-counter ingrown toenail relief products. ^[5]

SAME PRODUCTS

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Caustic soda flakes 99%	Epoxy E44	Vichemfloc 62414	Na2EDTA	Calcium hypochlorite - 70%
Trichloroisocyanuric acid	EO Cleaner - Heavy-duty degreasing detergent	Sodium citrate	Sodium hexamethaphosphate	Sodium Benzoate
Antracite	Mercury - Hg - Japan - 1.5kg	Hydrofluoric acid	Benzyl alcohol	Nitric acid - HNO3 - Korea - 68% - 35kg
Sodium Nitrite	Sodium dichloroisocyanurate	Potassium Sodium Tartrate	Sodium Nitrate	Sodium bicarbonate

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