STEARIC ACID

PRODUCT IDENTIFICATION

CAS NO.

 57-11-4

STEARIC ACID 

EINECS NO. 200-313-4
FORMULA CH3(CH2)16COOH
MOL WT. 284.48

H.S. CODE

 2915.70.0120
SMILES

C(CCCCCCCCCCC)CCCCCC(=O)O

TOXICITY

  
SYNONYMS n-Octadecanoate; 1-Heptadecanecarboxylic acid;
n-Octadecylic acid; Cetylacetic acid; Acide octadecylique; Acide stearique; Stearophanic acid; Octadecanoic acid; Other CAS RN: 8013-28-3, 8023-06-1, 8037-83-0, 8037-40-9, 8039-54-1, 8039-53-0, 8039-52-9, 8039-51-8, 39390-61-9, 58392-66-8, 82497-27-6, 134503-33-6, 197923-10-7, 294203-07-9

EXTRA NOTES

 EPA Pesticide Chemical Code 079082, FEMA No. 3035

CLASSIFICATION

 Fatty Acid

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE White to yellowish solid
MELTING POINT 67 - 69 C
BOILING POINT 361
SPECIFIC GRAVITY 0.94
SOLUBILITY IN WATER 0.1-1 g/100 ml at 23 C
OH RATE 2.25E-11 (cm3/molecule-sec at 25 C Atmospheric )
VAPOR DENSITY

9.8

HENRY LAW CONSTANT 4.76E-07 (atm-m3/mole at 25 C) Constant

NFPA RATINGS

 Health: 1 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

196 C

STABILITY Stable under ordinary conditions

EXTERNAL LINKS &GENERAL DESCRIPTION

Wikipedia Linking

Material Safety Data Sheet

Google Scholar Search

GENERAL DESCRIPTION: Fatty Acids are aliphatic carboxylic acid with varying hydrocarbon lengths at one end of the chain joined to terminal carboxyl (-COOH) group at the other end. The general formula is R-(CH2)n-COOH. Fatty acids are predominantly unbranched and those with even numbers of carbon atoms between 12 and 22 carbons long react with glycerol to form lipids (fat-soluble components of living cells) in plants, animals, and microorganisms. Fatty acids all have common names respectively lauric (C12), myrIstic (C14), palmitic (C16), stearic (C18), oleic (C18, unsaturated), and linoleic (C18, polyunsaturated) acids. The saturated fatty acids have no double bonds, while oleic acid is an unsaturated fatty acid has one double bond (also described as olefinic) and polyunsaturated fatty acids like linolenic acid contain two or more double bonds. Lauric acid (also called Dodecanoic acid) is the main acid in coconut oil (45 - 50 percent) and palm kernel oil (45 - 55 percent). Nutmeg butter is rich in myristic acid (also called Tetradecanoic acid ) which constitutes 60-75 percent of the fatty-acid content. Palmitic acid(also called Hexadecylic acid ) constitutes between 20 and 30 percent of most animal fats and is also an important constituent of most vegetable fats (35 - 45 percent of palm oil). Stearic acid (also called Octadecanoic Acid)  is nature's most common long-chain fatty acids, derived from animal and vegetable fats. It is widely used as a lubricant and as an additive in industrial preparations. It is used in the manufacture of metallic stearates, pharmaceuticals, soaps, cosmetics, and food packaging. It is also used as a softener, accelerator activator and dispersing agent in rubbers. Oleic acid (systematic chemical name is cis-octadec-9-enoic acid) is the most abundant of the unsaturated fatty acids in nature. Stearic Acid is widely used as a lubricant and as an additive in industrial preparations. It is used in the manufacture of metallic stearates, pharmaceuticals, soaps, cosmetics, and food packaging. It is also used as a softener, accelerator activator and dispersing agent in rubbers.

INDIVIDUAL SATURATED FATTY ACIDS

COMMON NAME

SYSTEMATIC NAME

CAS RN

Length

MELTING POINT

Undecylic Acid

 n-Hendecanoic Acid 112-37-8 Straight 11:0

30 C
Lauric Acid n-Dodecanoic Acid 143-07-7 Straight 12:0

44 C

Tridecylic Acid

n-Tridecanoic Acid

 638-53-9 Straight 13:0

42 C
Myristic Acid n-Tetradecanoic Acid 544-63-8 Straight 14:0

54 C
Pentadecanoic Acid n-Pentadecanoic Acid 1002-84-2 Straight 15:0

52 C
Palmitic Acid n-Hexadecanoic Acid 57-10-3 Straight 16:0

62 C

Margaric Acid

n-Heptadecanoic Acid

 506-12-7 Straight 17:0

61 C
Stearic Acid n-Octadecanoic Acid 57-11-4 Straight 18:0

70 C

Nondecylic Acid

n-Nonadecanoic Acid

 646-30-0 Straight 19:0

70 C
Arachidic Acid n-Eicosanoic Acid 506-30-9 Straight 20:0

75 C
Henicosanoic acid

n-Heneicosanoic Acid

 2363-71-5 Straight 21:0

74 C
Behenic Acid

n-Docosanoic Acid

 112-85-6 Straight 22:0

81 C
Tricosanoic acid n-Tricosanoic acid 2433-96-7 Straight 23:0

80 C
Lignoceric Acid n-Tetracosanoic Acid 557-59-5 Straight 24:0

85 C

Pentacosanoic Acid

n-Pentacosanoic Acid

 506-38-7 Straight 25:0

85 C
Cerotinic acid n-Hexacosanoic acid 506-46-7 Straight 26:0

87 C

Heptacosanoic Acid

n-Heptacosanoic Acid

 7138-40-1 Straight 27:0

87 C
Montanic acid n-Octacosanoic acid 506-48-9 Straight 28:0

91 C

Nonacosanoic Acid

n-Nonacosanoic Acid

 4250-38-8 Straight 29:0

91 C
Melissic acid n-Triacontanoic acid 506-50-3 Straight 30:0

93 C
 

n-Hentriacontanoic Acid

 38232-01-8 Straight 31:0

 

Lacceroic Acid

 n-Dotriacontanoic Acid

 

 Straight 32:0

 
Ceromelissic Acid n-Tritriacontanoic acid

 

 Straight 33:0

 
Geddic Acid n-Tetratriacontanoic acid

 

 Straight 34:0

 
Ceroplastic Acid n-Pentatriacontanoic acid

 

 Straight 35:0

 
SALES SPECIFICATION

PALM OIL ACID (HARDENED)

APPEARANCE

Bead
IODINE VALUE

0.5 max
ACID VALUE 208 - 210
SAP VALUE 209 - 211
TITER 54 - 56 C
COLOR 0.5 R / 2.5 Y
CARBON DISTRIBUTION

C14 (1% max) + C16 (62% max) + C18 (45% max)
TRANSPORTATION
PACKING
25kgs in bag , 17mts in Container
HAZARD CLASS Not regulated
UN NO.  

GENERAL DESCRIPTION OF FAT
Commercial fats produced by organic processes in plants are palm, coconut, palm kernel, sunflower,  soybean, and other oils. Their main components are triolein and triglyceryl esters of stearic (C18), palmitic (C16), myristic(C14), lauric (C12), oleic (C18:1), and other fatty acids. Tallow is a refined hard fat extracted from fatty deposits of animals, especially from suet (fatty tissues around the kidneys of cattle and sheep). The molecules of most natural fatty acids have an even number of carbon chains due to the linkage together by ester units. Analogous compounds of odd numbers carbon chain fatty acids can be made synthetically. All fats are insoluble in water and have lighter weight than water. Industrial fats can be sub-classified as fat, grease or oil depending on melting point. Fats that are liquid at room temperature are referred to oil. Grease has a higher initial viscosity than oil. It is used as a lubricant. The organic processes to convert fats to fatty acids (or esters) and glycerol is called oleochemistry. Fatty acids and glycerol are produced by hydrolysis (addition reaction of water molecule with cleavage of parent molecules) of the triglycerides. Fatty esters are produced by esterification reaction. Coconut or palm oils are better source to get saturated fatty acids than sunflower, soybean or rapeseed oils which have more unsaturated fatty acids composition of triglycerides. Tall oil fatty acid (TOFA) is a low cost unsaturated fatty acid (oleic acid) and is a source of low boiling point fatty acids. It is an alternative to tallow fatty acid in soap applications. Generally, commercial coconut fatty acid has carbon chain composition of; C10 (5% max) + C12 (45 - 55%) + C14 (20 - 25%) + C16 (10 - 15 %) + C18 (10 - 15% max, including unsaturated fatty acids). Fats are used to make soap, food products, cosmetics, and candles, and lubricants. They are wisely used in producing synthetic surfactants.