alpha-纳富妥苯 (CAS No.145-50-6)
- 物化性质
- 深红色至棕色结晶粉末;熔点230-235°C;不溶于水,溶于乙醇、丙酮等有机溶剂;在碱性溶液中呈蓝色,在酸性溶液中呈黄色,变色范围pH 8.2-10.0。
- 熔点
- 230-235°C
- 溶解性
- 不溶于水,溶于乙醇、丙酮等有机溶剂
English description(英文原文,共 995 字符)
Product Name:alpha-Naphtholbenzein
English Name:alpha-Naphtholbenzein
CAS No.:145-50-6
Aliases:para-Naphtholbenzein indicator, alpha-Naphtholbenzein indicator
Molecular Formula:C27H18O2
Physical Properties:Dark red to brown crystalline powder; melting point 230-235°C; insoluble in water, soluble in ethanol, acetone and other organic solvents; shows blue in alkaline solution and yellow in acidic solution, with a pH transition range of 8.2-10.0.
Uses:Used as an acid-base indicator for titration analysis and pH color change detection. Particularly suitable for determining acid and base numbers in petroleum products according to GB/T 4945-2002 and ASTM D974 standard methods. Also applied in organic synthesis and biological staining.
Technical Specifications:
Grade: analytical reagent (GR)
Melting point: 230-235°C
Solubility: insoluble in water, soluble in ethanol, acetone and other organic solvents
Applicable standards: GB/T 4945-2002 and ASTM D974
Molecular weight: 374.43
English Name:alpha-Naphtholbenzein
CAS No.:145-50-6
Aliases:para-Naphtholbenzein indicator, alpha-Naphtholbenzein indicator
Molecular Formula:C27H18O2
Physical Properties:Dark red to brown crystalline powder; melting point 230-235°C; insoluble in water, soluble in ethanol, acetone and other organic solvents; shows blue in alkaline solution and yellow in acidic solution, with a pH transition range of 8.2-10.0.
Uses:Used as an acid-base indicator for titration analysis and pH color change detection. Particularly suitable for determining acid and base numbers in petroleum products according to GB/T 4945-2002 and ASTM D974 standard methods. Also applied in organic synthesis and biological staining.
Technical Specifications:
Grade: analytical reagent (GR)
Melting point: 230-235°C
Solubility: insoluble in water, soluble in ethanol, acetone and other organic solvents
Applicable standards: GB/T 4945-2002 and ASTM D974
Molecular weight: 374.43
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| 产品名称 | 纯度 | 包装规格 | 级别 | 价格 | 库存 | 操作 |
|---|---|---|---|---|---|---|
| alpha-纳富妥苯 CAS 145-50-6 | — | — | 工业级 | 电议 | — | 询价 |
常见问题
- alpha-纳富妥苯的 CAS 号是多少?
- alpha-纳富妥苯的 CAS 号是 145-50-6。
- alpha-纳富妥苯的分子式和分子量是什么?
- alpha-纳富妥苯的分子式为 C27H18O2,分子量约 374.43 English Version。
- alpha-纳富妥苯的英文名称是什么?
- alpha-纳富妥苯的英文名称为 alpha-Naphtholbenzein。
- alpha-纳富妥苯还有哪些别名?
- alpha-纳富妥苯又称 对萘酚苯指示剂、α-萘酚苯指示剂。
- alpha-纳富妥苯有哪些供应商和生产厂家?
- 掌上化工当前收录 1 条alpha-纳富妥苯供应报价,来自 1 家供应商,可按地区、纯度、级别筛选对比。
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- alpha-纳富妥苯有哪些级别可选?
- 平台上alpha-纳富妥苯的供应级别包括 工业级。
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- alpha-纳富妥苯的报价单位主要有 千克。
- 哪里可以查到alpha-纳富妥苯的价格?
- 掌上化工alpha-纳富妥苯产品页汇总了各供应商的最新报价与规格,地址:/chemicals/145-50-6/。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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