应用
Citric acid is the most widely used organic acid and pH-control agent in foods, beverages, pharmaceuticals and technical applications. Used in pharmaceutical preparations, especially in effervescent tablets. It is used as a natural preservative.

Grade Specifications
Maximum level of impurities: Insoluble matter 0.005%, Residue after ignition 0.02%, Cl 0.001%, C₂O₄ P.T. (limit about 0.05%), PO₄ 0.001%, SO₄ 0.002%, Fe 3ppm, Pb 2ppm, Substances carbonizable by hot sulfuric acid (tartrates, etc.) P.T.

备注
Citric acid anhydrous is non-toxic. It is chemically stable if stored at ambient temperatures. Stability tests have shown that citric acid anhydrous is chemically stable for at least five years in tightly closed containers under proper storage conditions. Hygroscopic.

基本信息

MDL
MFCD00011669

EINECS
201-069-1

分子式
C₆H₈O₇

分子量
192.13

熔点
153-154°

密度
1.665

灵敏度
Hygroscopic. Ambient temperatures.

形态
Crystalline

溶解性
It is very soluble in water, freely soluble in ethanol (96 %) and sparingly soluble in ether.

Beilstein
782061

Merck
14,2326

GHS危害和防范说明

GHS符号

Hazard Statements
H303-H315-H318-H335
May be harmful if swallowed.Causes skin irritation.Causes serious eye damage.May cause respiratory irritation.

Precautionary Statements
P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray.Wear protective gloves and eye/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险类别
37/38-41
Irritating to respiratory system and skin.Risk of serious damage to eyes.

安全等级
26-37/39-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable gloves and eye/face protection.This material and its container must be disposed of as hazardous waste

RTECS
GE7350000

TSCA
是