Sodium Hydrosulfite
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Post Date:
Dec 12,2024
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Expiry Date:
Dec 12,2025
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Detailed Description:
Cas No. :7775-14-6
Specs:85%；88%；90%
Synonyms: Sodium dithionite; Dithionous acid, disodium saltMolecular formula: Na2S2O4
Molecuar weight: 174.11
Hazardous material composition:CAS No.
Appearance: white or light yellow crystalline powder-like sand.
Melting point (οC):> 300 (decomposition)
Ignition temperature(οC): 250
Solubility: not soluble in ethanol, soluble in sodium hydroxide solution. Strong reaction with water and burn.
Main purpose: printing and dyeing industry, can be used as reducing agent for vat dyes, disperse dyes can be used for reduction cleaning (two-bath), reactive dyes can be used for stripping, wire, hair bleach, also used in medicine, mineral processing, sulfur the synthesis of urea and sulfur.
INCOMPATIBILITY: Strong oxidizers, acids, flammable or combustibles.
Conditions to avoid: thermal decomposition, in the air can be oxidized.
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CAS Registry Number:
7775-14-6
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Synonyms:
;Sodium dithionite hydrate;Sodium hydrosulphite;Sodium dithionite;disodium dithionite;
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Molecular Formula:
Na2O4S2
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Molecular Weight:
174.1071
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Molecular Structure:
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Hazard Symbols:
Xn:Harmful;
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Risk Codes:
R22:;
R31:;
R7:;
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Safety Description:
S26:;
S28A:;
S43E:;
S7/8:;
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