STEARYL CITRATE

PRODUCT IDENTIFICATION

CAS NO. 1337-33-3

STEARYL CITRATE

EINECS NO. 215-654-4
FORMULA C24H44O7 (Monostearyl)
MOL WT. 444.61
H.S. CODE  
SMILES

 

TOXICITY  
SYNONYMS 2-Hydroxy-1,2,3-Propanetricarboxylic acid, octadecyl ester;
2-Hydroxy-1,2,3-Propanetricarboxylic acid, stearyl ester: Hydroxy-2, acide propanetricarboxylique-1,2,3 ester d'octadécyle (French); 2-Hidroxi-ácido 1,2,3-propanotricarboxílico, octadecil éster (Spanish); 2-Hydroxy-1,2,3-Propan tricarbonsäure, Octadecylester (German);

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

waxy solid

MELTING POINT 47 C
BOILING POINT  
SPECIFIC GRAVITY 0.92
SOLUBILITY IN WATER

 

AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 2 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY Stable under ordinary conditions.

APPLICATIONS

Stearyl citrate is used as an oil-soluble chelating agent. Stearyl group is lipophilic and carboxyl groups are active in chelating. This function is useful for various oil stability for long shelf-life. It is used as a surface lubricant in the manufacture of paper contacting fatty acids and water. It is used as a plasticizer for food contact plastics. It is used in polymeric coatings.
SALES SPECIFICATION

APPEARANCE

waxy solid

ESTER CONTENTS

99.0% max

SAP VALUE

140 - 170 (mg KOH/g)

ACID VALUE

1 max (mg KOH/g)

TRANSPORTATION
PACKING 25kgs in bag
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.