儿茶酚紫 (CAS No.115-41-3)
- 物化性质
- 红棕色结晶粉末，溶于水和乙醇，不溶于乙醚。在酸性溶液中呈黄色，在碱性溶液中呈紫色至紫红色。作为金属指示剂，能与多种金属离子形成蓝色至紫色络合物。
- 外观
- 红棕色结晶粉末
- 含量
- ≥95%
- 熔点
- 185℃（分解）
- 溶解性
- 溶于水(10 mg/L)，微溶于乙醇，不溶于乙醚
English description（英文原文，共 1039 字符）
Product Name:Pyrocatechol Violet
English Name:Pyrocatechol Violet
CAS No.:115-41-3
Aliases:Catechol Violet, Pyrocatecholsulfonephthalein, o-Dihydroxybenzene Violet
Molecular Formula:C19H14O7S
Physical Properties:Red-brown crystalline powder, soluble in water and ethanol, insoluble in ether. Exhibits yellow color in acidic solutions and purple to reddish-purple in alkaline solutions. Acts as a metal indicator, forming blue to purple complexes with various metal ions.
Uses:Used as a complexometric titration indicator, particularly suitable for the determination of lead, cadmium, cobalt, copper, iron, nickel and other metal ions by EDTA titration. Also applied in spectrophotometric detection of metal ions and preparation of metal-organic complexes.
Technical Specifications:
Appearance: Red-brown crystalline powder
Content: ≥95%
Melting point: 185°C (decomposition)
Solubility: Soluble in water (10 mg/L), slightly soluble in ethanol, insoluble in ether
pH transition range: 0-6 yellow, 7-9 purple, 10-12 reddish-purple
English Name:Pyrocatechol Violet
CAS No.:115-41-3
Aliases:Catechol Violet, Pyrocatecholsulfonephthalein, o-Dihydroxybenzene Violet
Molecular Formula:C19H14O7S
Physical Properties:Red-brown crystalline powder, soluble in water and ethanol, insoluble in ether. Exhibits yellow color in acidic solutions and purple to reddish-purple in alkaline solutions. Acts as a metal indicator, forming blue to purple complexes with various metal ions.
Uses:Used as a complexometric titration indicator, particularly suitable for the determination of lead, cadmium, cobalt, copper, iron, nickel and other metal ions by EDTA titration. Also applied in spectrophotometric detection of metal ions and preparation of metal-organic complexes.
Technical Specifications:
Appearance: Red-brown crystalline powder
Content: ≥95%
Melting point: 185°C (decomposition)
Solubility: Soluble in water (10 mg/L), slightly soluble in ethanol, insoluble in ether
pH transition range: 0-6 yellow, 7-9 purple, 10-12 reddish-purple
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常见问题
- 儿茶酚紫的 CAS 号是多少？
- 儿茶酚紫的 CAS 号是 115-41-3。
- 儿茶酚紫的分子式和分子量是什么？
- 儿茶酚紫的分子式为 C19H14O7S。
- 儿茶酚紫的英文名称是什么？
- 儿茶酚紫的英文名称为 Pyrocatechol Violet。
- 儿茶酚紫还有哪些别名？
- 儿茶酚紫又称 邻苯二酚紫、儿茶酚磺酞、焦儿茶酚紫。
- 儿茶酚紫有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条儿茶酚紫供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 儿茶酚紫的供应商主要分布在哪些地区？
- 儿茶酚紫的供应商主要分布在 上海市（1 条） 等地。
- 儿茶酚紫有哪些级别可选？
- 平台上儿茶酚紫的供应级别包括 工业级。
- 儿茶酚紫的报价单位是什么？
- 儿茶酚紫的报价单位主要有 千克。
- 哪里可以查到儿茶酚紫的价格？
- 掌上化工儿茶酚紫产品页汇总了各供应商的最新报价与规格，地址：/chemicals/115-41-3/。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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