Glycolic acid is mainly used as a flavoring agent and fixing agent for cosmetics, flavoring agent for daily chemicals, and flavoring agent for food. It is also used as an intermediate in pharmaceuticals, dyes, plastics and pesticides. Also, glyoxylic acid is the raw material for making vanillin.
|Name||Glyoxylic acid, Oxoacetic acid||Melting Point||98°C|
|Chemical Formula||C2H2O3||Boiling Point||111°C|
|Molecular Weight||74.04||Density||1.3 g/ml|
|CAS No.||298-12-4||Appearance||Aqueous solution is light yellow|
|Molar Mass||74.04 g/mol|
Product name: Glyoxylic acid
English Alias: Acetic acid, xo-; Glyoxalate; glyoxylate; oxoacetate
CAS No.: 298-12-4
Molecular formula: C2H2O3
Molecular weight: 74.04
Physical and chemical properties
Relative density(d204): 1.384
Refractive index(n20D): 1.403
Boiling point: 111°C
Melting point: 98°C
Flash point: 103.9°C
Vapor pressure: 0.0331mmHg at 25°C
Appearance: Glyoxalic acid is a white crystal with unpleasant odor, and the aqueous solution is a colorless or light yellow transparent liquid.
Solubility: Soluble in water, the aqueous solution is yellow; insoluble in ether, ethanol and benzene, etc. Exposed to air for a short time, it can absorb moisture and become pulpy, corrosive.
Hazard: Toxic, corrosive, can irritate skin and mucous membrane. 40% of the product has an oral LD50 of 70mg/kg for rats. operators should pay attention to wear good labor protection equipment, and rinse with plenty of water when it gets on the skin.
MDL No.: MFCD00006958
Other harmful effects: The glyoxylic acid may be harmful to the environment and special attention should be paid to water.
Molecular structure data
Molar refractive index: 13.06
Molar volume: 53.4
Isotropic specific volume（90.2K）：142.3
Surface tension (dyne/cm): 50.2
Properties and Stability
It is toxic, corrosive, and can irritate skin and mucous membranes. 40% of the product has an oral LD50 of 70mg/kg for rats. operators should be careful to wear good protective gear and rinse with plenty of water when it gets on the skin.
It is found in tobacco leaves.
Store and transport according to the regulations of toxic chemicals. Store in a cool, dry and ventilated place and transport according to the regulations for toxic chemicals. Storage temperature 4°C.
1. Oxalic acid electrolysis method
2. Glyoxal oxidation method
3. Dichloroacetic acid method
4. Maleic anhydride oxidation reduction method
200L plastic pail.
Glyoxylic acid is a basic organic chemical material. Ethyl vanillin, made from glyoxylic acid, is widely used as a flavoring agent and fixing agent for cosmetics, as a flavoring agent for daily chemicals, and as a flavoring agent for food. Allantoin made from glyoxylic acid. It is used as a good healing agent for skin wounds, an additive for high-grade cosmetics and a plant growth regulator. In medicine, glyoxylic acid is used to prepare p-hydroxyphenylglycine (raw material for hydroxybenzyl penicillin and cefadroxil), p-hydroxyphenylacetamide (used to make atil, an effective substance for treating cardiovascular diseases and hypertension), as well as p-hydroxyphenylacetic acid, p-hydroxyphenylhydantoin and other pharmaceutical products.
Safety markings: S26S38S45S36/S37/S39S37/S39
Danger markings: R34R41R43
1. Avoid skin contact.
2. After inadvertent contact with eyes, rinse immediately with plenty of water and seek medical advice.
3. Wear appropriate gloves and goggles or mask.
1. Serious damage to eyes.
2. May cause sensitization in contact with skin.