铬变酸二钠 (CAS No.5808-22-0)
- 中文别名
- 变色酸二钠；变色酸二钠盐；4,5-二羟基萘-2,7-二磺酸二钠盐
- 英文名称
- Chromotropic Acid Disodium Salt
- 分子式
- C10H6Na2O8S2·2H2O
- 所属类别
- 染料颜料
- 物化性质
- 无色至浅棕色结晶性粉末，溶于水，微溶于乙醇，不溶于乙醚；水溶液呈酸性，在碱性条件下易氧化变色；有吸湿性，需密封避光保存。
- 技术参数
- 含量（干基）≥ 98.0% 分子量（含二分子结晶水）400.29
- 溶解性
- 溶于水，微溶于乙醇，不溶于乙醚
- 储存条件
- 密封、避光、阴凉干燥处保存
English description（英文原文，共 1249 字符）
Product Name:Chromotropic Acid Disodium Salt
English Name:Chromotropic Acid Disodium Salt
CAS No.:5808-22-0
Aliases:Disodium chromotropate, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Sodium chromotropate
Molecular Formula:C10H6Na2O8S2·2H2O
Physical Properties:White to light brown crystalline powder; soluble in water, slightly soluble in ethanol, insoluble in diethyl ether. Aqueous solutions are acidic and tend to oxidize and discolor under alkaline conditions. Hygroscopic; keep tightly sealed and protected from light.
Uses:Primarily used as a chromogenic and colorimetric reagent in analytical chemistry for the determination of formaldehyde, methanol, titanium, chromium and related substances. It is also employed in environmental monitoring for the chromogenic detection of formaldehyde, chromium, titanium and other components in water, and serves as a spectrophotometric chromogenic agent for certain metal ions and as an intermediate in organic synthesis.
Technical Specifications:
Assay (dry basis) ≥ 98.0%
Molecular weight (as dihydrate): 400.29
Solubility: soluble in water, slightly soluble in ethanol, insoluble in diethyl ether
Storage: keep tightly sealed, protected from light, in a cool and dry place
English Name:Chromotropic Acid Disodium Salt
CAS No.:5808-22-0
Aliases:Disodium chromotropate, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Sodium chromotropate
Molecular Formula:C10H6Na2O8S2·2H2O
Physical Properties:White to light brown crystalline powder; soluble in water, slightly soluble in ethanol, insoluble in diethyl ether. Aqueous solutions are acidic and tend to oxidize and discolor under alkaline conditions. Hygroscopic; keep tightly sealed and protected from light.
Uses:Primarily used as a chromogenic and colorimetric reagent in analytical chemistry for the determination of formaldehyde, methanol, titanium, chromium and related substances. It is also employed in environmental monitoring for the chromogenic detection of formaldehyde, chromium, titanium and other components in water, and serves as a spectrophotometric chromogenic agent for certain metal ions and as an intermediate in organic synthesis.
Technical Specifications:
Assay (dry basis) ≥ 98.0%
Molecular weight (as dihydrate): 400.29
Solubility: soluble in water, slightly soluble in ethanol, insoluble in diethyl ether
Storage: keep tightly sealed, protected from light, in a cool and dry place
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常见问题
- 铬变酸二钠的 CAS 号是多少？
- 铬变酸二钠的 CAS 号是 5808-22-0。
- 铬变酸二钠的分子式和分子量是什么？
- 铬变酸二钠的分子式为 C10H6Na2O8S2·2H2O。
- 铬变酸二钠的英文名称是什么？
- 铬变酸二钠的英文名称为 Chromotropic Acid Disodium Salt。
- 铬变酸二钠还有哪些别名？
- 铬变酸二钠又称 变色酸二钠、变色酸二钠盐、4,5-二羟基萘-2,7-二磺酸二钠盐。
- 铬变酸二钠有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条铬变酸二钠供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
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- 铬变酸二钠的供应商主要分布在 上海市（1 条） 等地。
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- 平台上铬变酸二钠的供应级别包括 工业级。
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- 铬变酸二钠的报价单位主要有 千克。
- 哪里可以查到铬变酸二钠的价格？
- 掌上化工铬变酸二钠产品页汇总了各供应商的最新报价与规格，地址：/chemicals/5808-22-0/。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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