TRIBUTYL CITRATE

PRODUCT IDENTIFICATION

CAS NO. 77-94-1

TRIBUTYL CITRATE 

EINECS NO. 201-071-2
FORMULA CH3(CH2COO(CH2)3CH3)2
MOL WT. 360.45
H.S. CODE 2918-15

TOXICITY

 
SYNONYMS Butyl citrate; Tri-n-butyl citrate;
2-Hydroxy-1,2,3-Propanetricarboxylic Acid Tributyl Ester; Butyl Citrate; TBC;

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Clear to yellow liquid
MELTING POINT  
BOILING POINT 234 C
SPECIFIC GRAVITY
1.035 - 1.045
SOLUBILITY IN WATER Negligible

SOLVENT SOLUBILITY

 
pH

 

VAPOR DENSITY 9.13
HENRY'S LAW

 

NFPA RATINGS Health: 0 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

1.444 ± 1
FLASH POINT

157 C

STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION AND APPLICATIONS

Tributyl Citrate, high boiling substance, is used as a solvent and plasticizer for polymers especially for PVC and its copolymers which are subsequently applied to food wrapping film. It is a plasticizer permitted in the field of food additive, food contact material, medical, and pharmaceutical. It is used as a plasticiser and humectant for cigarette filters. It is widely used in cosmetics , lacquers and as a fragrance carrier. It is a component of adhesives. Tributyl Citrate is effective to keep stable color maintance when processed with resins due to the property of heat-stable.
SALES SPECIFICATION

APPEARANCE

Clear to yellow liquid

PURITY

99.0% min

CITRIC ACID 0.2% max

MOISTURE

0.2% max

HEAVY METALS

10ppm max

COLOR , APHA

50 max

TRANSPORTATION
PACKING 225kgs in drum
HAZARD CLASS Not regulated
UN NO.  

GENERAL DESCRIPTION OF CITRIC ACID

Citric Acid (2-Hydroxy-1,2,3-propanetricarboxylic acid, in IUPAC naming) is a colourless crystalline organic compound belong to carboxylic acid family. It exists in all plants (especially in lemons and limes) and in many animal tissues and fluids. In biochemistry, it is involved in important metabolism of almost all living things; the Krebs cycle (also called citric acid cycle or tricarboxylic acid cycle), a part of the process by which animals convert food to energy. Citric acid works as a preservative ( or as an antioxidant) and cleaning agent in nature. It is commercially obtained by fermentation process of glucose with the aid of the mold Aspergillus niger and can be obtained synthetically from acetone or glycerol. It can be used as an sour taste enhancer in foods and soft drinks. The three carboxy groups lose protons in solution; resulting in the excellent pH control as a buffer in acidic solutions. It is used as a flavouring, stabilizing agent and acidulant (to control acidity) in food industry, in metal-cleaning compositions as it chelates metals. Citric acid is available in forms of anhydrous primarily and in monohydrate, the crystallized form from water. The hydrated form will be converted to the anhydrous form above 74 C. Citrate is a salt or ester of citric acid. Citrates are formed by replacing the acidic one, two, or all three of the carboxylic hydrogens in citric acid by metals or organic radicals to produce an extensive series of salts, esters, and mixed (solid) salts. Cirrates are used in food, cosmetics, pharmaceutical and medicine industries as well as in plastic industry; nutrient or food additives having functions of acidity regulator, sequestering and stabilizing agent, antioxidants synergist, firming agent; anticoagulant for stored whole blood and red cells and also for blood specimens as citrates chelate metal ions and saline cathartics, effervescent medicines; high boiling solvent, plasticizer and resin for food contact plastics.