草酸

Oxalic acid is used as reducing agent for photographic films, as mordant in dyeing process, as bleaching agent for removal of rust through complex formation, and as grinding agent during polishing of marble. It is used in waste water treatment to remove calcium. The conjugate base of oxalic acid acts as a chelating agent for metal ions. It is used as a catalyst for esterifications in synthetic organic chemistry and as an analytical reagent.

Moisture sensitive. Incompatible with alkali metals.

MFCD00002573

205-634-3

C₂H₂O₄

90.04

ca 185° dec.

1.9

Ambient temperatures.

Crystalline

Soluble in water. Slightly soluble in alcohol and ether. Insoluble in benzene and chloroform.

385686

14,6911

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

24/25
Avoid contact with skin and eyes.

RO2450000

 

是

  

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

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.