硫代硫酸钠 (CAS No.7772-98-7)
- 物化性质
- 无水硫代硫酸钠为白色结晶性粉末,相对密度约2.15,熔点约300℃(分解)。易溶于水,水溶液近中性,不溶于乙醇,具有还原性,可作为碘量法分析中的还原剂。
- 技术参数
- 含量 ≥99% 外观为白色结晶性粉末 易溶于水,不溶于乙醇 水溶液pH值(100 g/L,20℃)为6.0~8.0 分子量为158.109
English description(英文原文,共 986 字符)
Product Name:Sodium thiosulfate
English Name:Sodium thiosulfate
CAS No.:7772-98-7
Aliases:Sodium hyposulfite, Hypo, Sodium subsulfite, Anhydrous sodium thiosulfate
Molecular Formula:Na2S2O3
Physical Properties:Anhydrous sodium thiosulfate is a white crystalline powder with a relative density of approximately 2.15 and a melting point of about 300°C (decomposition). It is freely soluble in water, giving a nearly neutral solution, insoluble in ethanol, and exhibits reducing properties, serving as a reducing agent in iodometric analysis.
Uses:It is mainly used as a photographic fixing agent, a complexing agent in electroplating, and a reagent in iodometric analysis. It is also employed as an antioxidant, a dechlorinating agent in bleaching, and a water treatment chemical.
Technical Specifications:
Content ≥99%
Appearance: white crystalline powder
Freely soluble in water, insoluble in ethanol
pH of aqueous solution (100 g/L, 20°C): 6.0~8.0
Molecular weight: 158.109
English Name:Sodium thiosulfate
CAS No.:7772-98-7
Aliases:Sodium hyposulfite, Hypo, Sodium subsulfite, Anhydrous sodium thiosulfate
Molecular Formula:Na2S2O3
Physical Properties:Anhydrous sodium thiosulfate is a white crystalline powder with a relative density of approximately 2.15 and a melting point of about 300°C (decomposition). It is freely soluble in water, giving a nearly neutral solution, insoluble in ethanol, and exhibits reducing properties, serving as a reducing agent in iodometric analysis.
Uses:It is mainly used as a photographic fixing agent, a complexing agent in electroplating, and a reagent in iodometric analysis. It is also employed as an antioxidant, a dechlorinating agent in bleaching, and a water treatment chemical.
Technical Specifications:
Content ≥99%
Appearance: white crystalline powder
Freely soluble in water, insoluble in ethanol
pH of aqueous solution (100 g/L, 20°C): 6.0~8.0
Molecular weight: 158.109
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常见问题
- 硫代硫酸钠的 CAS 号是多少?
- 硫代硫酸钠的 CAS 号是 7772-98-7。
- 硫代硫酸钠的分子式和分子量是什么?
- 硫代硫酸钠的分子式为 Na2S2O3。
- 硫代硫酸钠的英文名称是什么?
- 硫代硫酸钠的英文名称为 Sodium thiosulfate。
- 硫代硫酸钠还有哪些别名?
- 硫代硫酸钠又称 大苏打、海波、次亚硫酸钠、无水硫代硫酸钠。
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