Supply Stearic Acid

Stearic Acid
CAS NO.: 57-11-4
H. S. Code : 2915 7010
Chemical Formula : C18H36O2
Molecular Weight : 284.48
amu Boiling Point : 361 C
Melting Point : 69.6 C
Surface Area of Molecule : 0.205 nm2

Characters and Uses :
It is an important chemical raw material and additive, widely used in rubber, plastics, cosmetics, pharmaceuticals, chemical auxilary agent industries etc.

Stearic acid, also called octadecanoic acid, is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. It is a waxy solid, and its chemical formula is CH3 (CH2)16COOH. Its name comes from the Greek word, stear, which means tallow. Its IUPAC name is octadecanoic acid.

Stearic acid is prepared by treating animal fat with water at a high pressure and temperature. It can also be obtained from the hydrogenation of vegetable oils.

Common stearic acid is actually a mix of stearic acid and palmitic acid, although purified stearic acid is available separately.

Stearic acid is useful as an ingredient in making candles, soaps, and cosmetics and for softening rubber.

- Specifications:

Grade200 type
Iodine value...2.0max
Sapon value (mgKOH/g).206-211
Acid value (mgKOH/g)..205-210
Color (Hazen)...200max
Titer..54-57
Moisture, %........0.20max
Inorganic, %........0.001max

Grade 400 type
Iodine value..4.0max
Sapon value (mgKOH/g) 203-214
Acid value (mgKOH/g) 203-214
Color (Hazen)...400max
Titer...54min
Moisture, %.....................0.20max
Inorganic, %....................0.001max

Grade 800 type
Iodine value...8.0max
Sapon value (mgKOH/g)..193-220
Acid value (mgKOH/g)...193-220
Color (Hazen...800max
Titer52min
Moisture, %..................0.30max
Inorganic, %.................0.001max