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Merck
CN

C0759

Sigma-Aldrich

无水柠檬酸粉末

99%

别名:

2-Hydroxy-1,2,3-propanetricarboxylic acid, 2-Hydroxypropan-1,2,3-tricarboxylic acid

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About This Item

线性分子式:
HOC(COOH)(CH2COOH)2
CAS号:
分子量:
192.12
Beilstein:
782061
EC 号:
MDL编号:
UNSPSC代码:
12352100
eCl@ss:
39021801
PubChem化学物质编号:
NACRES:
NA.21

质量水平

检测方案

99%

形式

crystals

expl. lim.

8 %, 65 °F

pKa (25 °C)

(1) 3.13, (2) 4.76, (3) 6.40

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

mp

153-159 °C (lit.)

溶解性

water: soluble 383 g/L at 25 °C

SMILES字符串

OC(=O)CC(O)(CC(O)=O)C(O)=O

InChI

1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)

InChI key

KRKNYBCHXYNGOX-UHFFFAOYSA-N

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相关类别

一般描述

柠檬酸是一种天然成分,广泛应用于许多工业应用,如螯合、缓冲、pH调节和衍生化。它还可作为缩合、酸催化、环加成、脱保护和脱羧反应的试剂。

应用

柠檬酸可用作反应物来合成:
  • 通过硫酸催化柠檬酸与与脂肪醇C2-C5的酯化反应合成柠檬酸三乙酯。
  • 通过无催化剂缩聚反应合成生物可降解热固性聚合物。
也可用作催化剂,通过与2-萘酚、醛、酰胺/尿素反应合成氨基烷基萘酚。

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2 - STOT SE 3

靶器官

Respiratory system

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


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