Zhifan Chemical import & export co.,ltd
Zhifan Chemical is a trading company in the chemical industry, with over 16 years of experience in supplying chemical raw materials. We have established a reputation for delivering high-quality products and providing excellent customer service to our clients all over the world. Our extensive knowledge of the chemical industry allows us to source the best products and offer competitive pricing to meet our customers' needs.
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sodium sulfide 60
Sodium sulfide is a chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both the anhydrous and the hydrated salts in pure crystalline form are colorless solids, although technical grades of sodium sulfide are generally yellow to brick red owing to the presence of polysulfides and commonly supplied as a crystalline mass, in flake form, or as a fused solid. They are water-soluble, giving strongly alkaline solutions. When exposed to moisture, Na2S immediately hydrates to give sodium hydrosulfide.
Product application scope
The structures of sodium sulfides have been determined by X-ray crystallography. The nonahydrate features S2- hydrogen-bonded to 12 water molecules.[2] The pentahydrate consists of S2- centers bound to Na+ and encased by an array of hydrogen bonds.[3] Anhydrous Na2S, which is rarely encountered, adopts the antifluorite structure,[4][5] which means that the Na+ centers occupy sites of the fluoride in the CaF2 framework, and the larger S2− occupy the sites for Ca2+.
t is used in water treatment as an oxygen scavenger agent and also as a metals precipitant; in chemical photography for toning black and white photographs; in the textile industry as a bleaching agent, for desulfurising and as a dechlorinating agent; and in the 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, making dyes, and detergent. It is also used during leather processing, as an unhairing agent in the liming operation.
Sodium sulfide is a chemical compound with a chemical formula Na2S. Sodium sulfide is used in the pulp and paper industry, water treatment, textile industry, and various chemical manufacturing processes including the production of rubber chemicals, sulfur dyes and oil recovery. Along with its hydrate form, sodium sulfide releases hydrogen sulfide (H2S) when in contact with moist air. H2S is an endogenous gaseous transmitter that exhibits anti-inflammatory and antiapoptotic properties. Along with other sulfides, the anti-inflammatory and tissue-protective effects of sodium sulfide have been investigated in models of inflammation and oxidative stress. Interestingly, sodium sulfide was shown to have some cardioprotective role against cardiac ischemia or reperfusion injury, as well as protect lungs against ventilator-induced lung injury 1. However the clinical significance and mechanism of action of sodium sulfide and replication of results across other studies are not yet fully determined.
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