焦亚硫酸钾 (CAS No.4429-42-9)
- 物化性质
- 外观为无色单斜片晶或白色结晶性颗粒，有二氧化硫气味，相对密度2.34，加热至190℃分解，溶于水，微溶于乙醇，不溶于乙醚，遇酸分解生成二氧化硫。
- 技术参数
- 纯度≥99% 外观为无色单斜片晶或白色结晶性颗粒 相对密度2.34 加热至190℃分解 溶于水，微溶于乙醇，不溶于乙醚
English description（英文原文，共 1120 字符）
Product Name:Potassium metabisulfite
English Name:Potassium metabisulfite
CAS No.:16731-55-8
Aliases:Potassium pyrosulfite
Molecular Formula:K2S2O5
Physical Properties:Colorless monoclinic crystal or white crystalline granules with a sulfur dioxide odor, relative density 2.34, decomposes at 190°C, soluble in water, slightly soluble in ethanol, insoluble in ether, and decomposes with acids to release sulfur dioxide.
Uses:Used as a food bleaching agent, preservative, and antioxidant; a permitted reducing bleaching agent that exerts reductive effects on oxidases in plant-derived foods; also used as a chromatographic analytical reagent, developing agent, reducing agent, bacterial inhibitor, and for the preparation of sulfurous acid. In winemaking, it is used as an additive that releases sulfur dioxide to inhibit wild microorganisms and protect wine color and flavor through antioxidant activity.
Technical Specifications:
Purity ≥99%
Colorless monoclinic crystal or white crystalline granules
Relative density 2.34
Decomposes at 190°C
Soluble in water, slightly soluble in ethanol, insoluble in ether
English Name:Potassium metabisulfite
CAS No.:16731-55-8
Aliases:Potassium pyrosulfite
Molecular Formula:K2S2O5
Physical Properties:Colorless monoclinic crystal or white crystalline granules with a sulfur dioxide odor, relative density 2.34, decomposes at 190°C, soluble in water, slightly soluble in ethanol, insoluble in ether, and decomposes with acids to release sulfur dioxide.
Uses:Used as a food bleaching agent, preservative, and antioxidant; a permitted reducing bleaching agent that exerts reductive effects on oxidases in plant-derived foods; also used as a chromatographic analytical reagent, developing agent, reducing agent, bacterial inhibitor, and for the preparation of sulfurous acid. In winemaking, it is used as an additive that releases sulfur dioxide to inhibit wild microorganisms and protect wine color and flavor through antioxidant activity.
Technical Specifications:
Purity ≥99%
Colorless monoclinic crystal or white crystalline granules
Relative density 2.34
Decomposes at 190°C
Soluble in water, slightly soluble in ethanol, insoluble in ether
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常见问题
- 焦亚硫酸钾的 CAS 号是多少？
- 焦亚硫酸钾的 CAS 号是 4429-42-9。
- 焦亚硫酸钾的分子式和分子量是什么？
- 焦亚硫酸钾的分子式为 K2S2O5。
- 焦亚硫酸钾的英文名称是什么？
- 焦亚硫酸钾的英文名称为 Potassium metabisulfite。
- 焦亚硫酸钾还有哪些别名？
- 焦亚硫酸钾又称 偏重亚硫酸钾。
- 焦亚硫酸钾有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条焦亚硫酸钾供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 焦亚硫酸钾的供应商主要分布在哪些地区？
- 焦亚硫酸钾的供应商主要分布在 上海市（1 条） 等地。
- 焦亚硫酸钾有哪些级别可选？
- 平台上焦亚硫酸钾的供应级别包括 工业级。
- 焦亚硫酸钾的报价单位是什么？
- 焦亚硫酸钾的报价单位主要有 千克。
- 哪里可以查到焦亚硫酸钾的价格？
- 掌上化工焦亚硫酸钾产品页汇总了各供应商的最新报价与规格，地址：/chemicals/4429-42-9/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
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