|
|
|
| STEARYL CITRATE | ||
|
PRODUCT IDENTIFICATION |
||
| CAS NO. | 1337-33-3 |
|
| 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. | ||
|
|
|
