product details
Stearic acid is produced by hydrolysis of oil and fat and is mainly used to produce stearate. It is white waxy transparent solid or yellowish waxy solid, and can be dispersed into powder with a slight smell of butter. The monohydric or polyhydric ester of stearic acid can be used as cosmetics, non-ionic surfactant, plasticizer, etc. Its alkali metal salt is soluble in water and is one of the main components of soap. Other metal salts can be used as waterproof agent, lubricant, bactericide, paint additive and PVC stabilizer. At present, the vast majority of domestic stearic acid enterprises import palm oil from abroad for hydrogenation to harden oil, and then hydrolyze and distill to make stearic acid.
Basic Introduction
Chinese name: stearic acid
Chemical name: Stearic Acid
INCI Name: Stearic Acid
CAS registration number: 57-11-4
EINECS Login No.: 266-928-5
Molecular formula: C18H36O2
Molecular weight: 284.48
HSCode：2915701000
Synonyms: stearic acid, 18 acid, stearic acid, stearic acid, stearic acid, stilylic acid, fatty wax acid, octadecanoic acid, octadecanoic acid, octadecanoic acid, octadecanoic acid, stearic acid 800 type C18、FEMA 3035、Stearic acid、hystrene5016、hystrene7018、Octadecan acid、CETYLACETIC ACID、n-Octadecan acid、Octadecanoic acid、CARBOXYLIC ACID C18、ACIDUM STEARICUM 50
application area
1. Food additives: Stearic acid and its salts are often used as food additives, mainly to increase the flavor and taste of food. It is sometimes used as the basic ingredient of flavor in chocolate, candy, biscuits and other foods. The antibacterial property of stearic acid makes it used as a preservative for some foods to extend the shelf life of foods.
2. Chemical industry: Stearic acid can be used to prepare a variety of surfactants, such as sodium stearate, stearamide, etc. These surfactants play the role of emulsification, decontamination and foaming in detergents, detergents and other products.
3. Pharmaceutical manufacturing: stearic acid is used to prepare some drugs and drug carriers in the pharmaceutical field. It is also used in some external drugs, with a bactericidal effect. Stearic acid, as a synthetic raw material, can be used to prepare some pharmaceutical intermediates and catalysts in the synthesis process.
4. Daily chemical industry: Stearic acid is one of the main ingredients of soap, which can produce rich foam and has good cleaning ability. At the same time, it is also used in hair care products such as shampoo. The moisturizing property of stearic acid makes it an important component of shower gel and hand cream, which helps to keep the skin moist. Stearic acid is also a common cosmetic raw material, which is used to prepare facial cleansers, skin creams and other products, with lubrication and moisturizing effects.
Packaging method
Cowhide bag
Stability and storage conditions
Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. Protect from direct sunlight. Keep container sealed. It shall be stored separately from oxidants, acids, acid anhydrides and acyl chlorides, and mixed storage is strictly prohibited. Equip with corresponding types and quantities of fire-fighting equipment. The storage area shall be equipped with leakage emergency treatment equipment and appropriate materials.
Product compliance
GB 1886.101
Color: white to light yellow
Status: hard solid
Crystallization point, ℃: 54.5-69
Moisture,%: ≤ 0.2
Acid value (calculated by KOH) mg/g: 196-211
Unsaponifiable matter,%: ≤ 1.5
Saponification value (calculated by KOH) mg/g: 197-212
Iodine value (calculated by I2) g/100g: ≤ 7.0
Burning residue,%: ≤ 0.1
Lead, mg/kg: ≤ 2.0
JP
Crystallization point, ℃: 56.0-72.0
Acid value (calculated by KOH) mg/g: 194-210
Iodine value (calculated by I2) g/100g: ≤ 4.0
Burning residue,%: ≤ 0.1
Heavy metal, mg/kg: ≤ 20
EP
Crystallization point, ℃: 64-69
Acid value (calculated by KOH) mg/g: 194-212
Unsaponifiable matter,%: ≤ 1.5
Saponification value (calculated by KOH) mg/g: 197-212
Iodine value (calculated by I2) g/100g: ≤ 1.5
Stearic acid,%: ≥ 90.0
Stearic acid+palmitic acid,%: ≥ 96.0
Nickel, mg/kg: ≤ 1.0
USP
Crystallization point, ℃: ≥ 54
Iodine value (calculated by I2) g/100g: ≤ 4.0
Stearic acid,%: ≥ 40.0
Stearic acid+palmitic acid,%: ≥ 90.0
Burning residue,%: ≤ 0.1
Heavy metal, mg/kg: ≤ 10
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