Citric acid
time:2012-11-25 15:38:18,count:0

Citric acid
Alias
1,2,3-Propanetricarboxylic acid, 2-hydroxy-
Category
Anionic surfactants-Carboxylate
CAS No.
77-92-9
Molecular Formula & Molecular Weight
Molecular Formula: C6H8O7
Molecular Weight: 192.12
Structural Formula
Properties
Appearance: colorless crystal or powder.
Solubility: soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse intraperitoneal LD50: 903mg/Kg;
mouse intravenous LD50: 42mg/Kg;
mouse oral LD50: 5040mg/Kg;
mouse subcutaneous LD50: 2700mg/Kg;
rabbit intravenous LD50: 330mg/Kg;
rabbit oral LDLo: 7000mg/Kg;
rat intraperitoneal LD50: 290mg/Kg;
rat oral LD50: 3000mg/Kg;
rat subcutaneous LD50: 5500mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent chelating, cleansing abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Widely use as chelating agent.
Widely use as intermediate in organic synthesis.
Use as anticoagulant.
Use as wood preservative.
Chelating agent, cleansing agent in industrial cleaning, household washing, food industry.
Buffering agent, chelating agent in personal care products.
Use as food additive.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/:77-92-9
Update: 20140309(1);

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