应用
As an analytical reagent, in dye and paint industries, in polymers, in metal treatment, in cleaning and textile finishing and as a reagent for dehydration and condensation Oxalic acid dihydrate acts as an analytical reagent, as a reducing agent for photographic films and as mordant in the dyeing process. It is used as a plating agent, a surface treating agent, a grinding agent, a precipitating agent in rare-earth mineral processing, a bleaching agent in textile and a purifying agent in the pharmaceutical industry. It plays an important role in antibiotic medication like oxytetracycline and chloramphenicol. It finds application in water treatment plants to remove calcium waste water. It is also used as a buffer in chromatographic separation as well as bleach for wood, removing black stains caused by water penetration.

Grade Specifications
Maximum level of impurities: Insoluble matter 0.005%, Residue after ignition 0.01%, Cl 0.002%, SO₄ 0.005%, Ca 0.001%, Nitrogen compounds (as N) 0.001%, Heavy Metals (as Pb) 5ppm, Fe 2ppm, Substances darkened by hot sulfuric acid P.T.

备注
Hygroscopic. Incompatible with bases, acid chlorides and alkali metals.

基本信息

MDL
MFCD00149102

EINECS
205-634-3

分子式
C₂H₂O₄?2H₂O

分子量
126.07 (90.04anhy)

熔点
101-105°

密度
1.65

灵敏度
Ambient temperatures.

形态
Crystalline

溶解性
Soluble in water, ethanol, ether and glycerol. Insoluble in chloroform.

Beilstein
3679436

Merck
14,6911

GHS危害和防范说明

GHS符号

Hazard Statements
H302-H312-H318
Harmful if swallowed.Harmful in contact with skin.Causes serious eye damage.

Precautionary Statements
P280-P305+P351+P338-P310a-P301+P312a-P321-P501a
Wear protective gloves/protective clothing/eye protection/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment (see label).Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险类别
21/22-41
Harmful in contact with skin and if swallowed.Risk of serious damage to eyes.

安全等级
24/25
Avoid contact with skin and eyes.

欧盟危险品标志

RTECS
KI1600000

TSCA
是