柠檬酸 (CAS No.77-92-9)
- 物化性质
- 白色结晶粉末，无臭，味极酸。密度1.542 g/cm³，熔点153-159℃，沸点175℃（分解），闪点155.2℃。易溶于水，20℃时溶解度为59 g/100mL，2%水溶液pH为2.1。在干燥空气中微有风化性，在潮湿空气中有吸湿性。
- 技术参数
- 含量 ≥ 99% 分子量 192.13 熔点 153-159℃ 水溶性 易溶于水（20℃时59 g/100mL） 2%水溶液pH值 2.1
English description（英文原文，共 1331 字符）
Product Name:Citric Acid
English Name:Citric Acid
CAS No.:77-92-9
Aliases:3-carboxy-3-hydroxypentanedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid
Molecular Formula:C6H8O7
Physical Properties:White crystalline powder, odorless, with a strongly sour taste. Density 1.542 g/cm³, melting point 153-159°C, boiling point 175°C (decomposes), flash point 155.2°C. Easily soluble in water, with a solubility of 59 g/100mL at 20°C. The pH of a 2% aqueous solution is 2.1. Slightly efflorescent in dry air and hygroscopic in moist air.
Uses:Citric acid is an important organic acid widely used as an acidity regulator, acidulant, chelating agent, and buffering agent. In the food industry, it is used for flavoring and preservation in beverages, candies, jams, and canned foods. In industrial applications, it is used for metal cleaning, boiler descaling, and flue gas desulfurization. In fine chemicals, it is used as a cosmetic ingredient, detergent builder, and formaldehyde-free textile finishing agent. In pharmaceuticals, it is used as an anticoagulant, and in agriculture and animal husbandry, it is used as a feed additive and preservative.
Technical Specifications:
Assay ≥ 99%
Molecular weight 192.13
Melting point 153-159°C
Solubility in water: easily soluble (59 g/100mL at 20°C)
pH of 2% aqueous solution: 2.1
English Name:Citric Acid
CAS No.:77-92-9
Aliases:3-carboxy-3-hydroxypentanedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid
Molecular Formula:C6H8O7
Physical Properties:White crystalline powder, odorless, with a strongly sour taste. Density 1.542 g/cm³, melting point 153-159°C, boiling point 175°C (decomposes), flash point 155.2°C. Easily soluble in water, with a solubility of 59 g/100mL at 20°C. The pH of a 2% aqueous solution is 2.1. Slightly efflorescent in dry air and hygroscopic in moist air.
Uses:Citric acid is an important organic acid widely used as an acidity regulator, acidulant, chelating agent, and buffering agent. In the food industry, it is used for flavoring and preservation in beverages, candies, jams, and canned foods. In industrial applications, it is used for metal cleaning, boiler descaling, and flue gas desulfurization. In fine chemicals, it is used as a cosmetic ingredient, detergent builder, and formaldehyde-free textile finishing agent. In pharmaceuticals, it is used as an anticoagulant, and in agriculture and animal husbandry, it is used as a feed additive and preservative.
Technical Specifications:
Assay ≥ 99%
Molecular weight 192.13
Melting point 153-159°C
Solubility in water: easily soluble (59 g/100mL at 20°C)
pH of 2% aqueous solution: 2.1
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常见问题
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- 柠檬酸的 CAS 号是 77-92-9。
- 柠檬酸的分子式和分子量是什么？
- 柠檬酸的分子式为 C6H8O7。
- 柠檬酸的英文名称是什么？
- 柠檬酸的英文名称为 Citric Acid。
- 柠檬酸还有哪些别名？
- 柠檬酸又称 枸橼酸、3-羧基-3-羟基戊二酸、2-羟基丙烷-1,2,3-三羧酸。
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