Octadecanol (Stearyl Alcohol)

Used in the production of surfactants (Pingpingjia), resins, synthetic rubber, etc. It is a basic raw material for cosmetic creams and emulsions. Its performance in thickening emulsions is stronger than that of cetyl alcohol, and it acts as an emulsifying stabilizer. Cosmetic-grade stearyl alcohol can be used in high-end cosmetics, offering a pure fragrance and reducing the amount of perfume needed. Additionally, it can be used in the manufacture of defoamers, flotation agents, softeners, paddy field insulation agents, surface covering agents, and as a raw material for medical ointments.

Stearyl Alcohol
Basic Introduction
Chinese Name: Stearyl Alcohol
Chemical Name: 1-Octadecanol
INCI Name: STEARYL ALCOHOL
CAS Registry Number: 112-92-5
EINECS Registry Number: 204-017-6
Molecular Formula: C18H38O
Molecular Weight: 242.44
HS Code: 2905170000
Synonyms: Octadecanol, 1-Hydroxyoctadecane, Stearyl alcohol, 1-Octadecanol, n-Octadecyl alcohol, n-Octadecanol, 1-Octadecanol (GC standard, >99.5%), Stearyl alcohol, Octadecyl alcohol, Stearyl alcohol, 1-Octadecanol, Stearyl Alcohol, Stearyl Alcohol Pastilles.

Application Areas
1. Food Additives: Stearyl alcohol is used as a sweetener and humectant, enhancing flavor and extending shelf life during food processing. Stearyl alcohol can form glycerides with fatty acids, used in the production of chocolate, candies, desserts, and frozen foods.
2. Textile Industry: Stearyl alcohol is also used as a dye solvent and coating additive in the textile industry to improve the quality of dyeing and coatings.
3. Pharmaceutical Manufacturing:
Stearyl alcohol has been used in controlled-release tablets, suppositories, and is also studied as a transdermal penetration enhancer.
Stearyl alcohol is also used as a solvent and carrier in the preparation of some injectables and oral medications. Its good solubility and low toxicity make it an ideal pharmaceutical excipient.
4. Daily Chemical Industry:
Stearyl alcohol is commonly used in cosmetics. By increasing the viscosity of emulsions, stearyl alcohol enhances their stability. It also has certain emollient and weak emulsifying properties, used to improve the water retention capacity of ointments, such as in Vaseline.
Stearyl alcohol effectively moisturizes and hydrates the skin, preventing dryness and cracking, and helps maintain soft and smooth skin.

Packaging Method
Kraft bag
Stability and Storage Conditions
Stearyl alcohol should be stored in a cool, well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. Keep containers sealed. It should be stored separately from oxidizers, acids, acid anhydrides, and acyl chlorides. Avoid mixed storage. Equip with appropriate types and quantities of fire-fighting equipment. The storage area should be equipped with leak emergency handling equipment and suitable containment materials.

Product Compliance
GB/T16451
Appearance: White solid/White solid/White solid
C18: ≥98/≥97/≥96
Melting Point, °C: 57-60/56-60/55-61
Color, Hazen: ≤10/≤15/≤30
Acid Value (as KOH) mg/g: ≤0.1/≤0.2/≤0.3
Saponification Value (as KOH) mg/g: ≤0.5/≤0.8/≤1.0
Hydroxyl Value (as KOH) mg/g: 203-210/200-215/200-220
Iodine Value (as I2) g/100g: ≤0.3/≤0.5/≤1.0
Alkane Content, %: ≤0.5/≤1.0/≤1.5
Carbonyl Value, mg/Kg: ≤100/≤150/≤200
Mercury, mg/kg: ≤1
Lead, mg/kg: ≤10
Arsenic, mg/kg: ≤2

CP
Appearance: White solid
C18: ≥95
Melting Point, °C: 57-60
Acid Value (as KOH) mg/g: ≤1.0
Saponification Value (as KOH) mg/g: ≤1.0
Hydroxyl Value (as KOH) mg/g: 197-217
Iodine Value (as I2) g/100g: ≤2.0
Carbonyl Value, mg/Kg: ≤100/≤150/≤200
Mercury, mg/kg: ≤1
Lead, mg/kg: ≤10
Arsenic, mg/kg: ≤2

BP, EP
Appearance: White solid
C18: ≥95
Melting Point, °C: 57-60
Acid Value (as KOH) mg/g: ≤1.0
Saponification Value (as KOH) mg/g: ≤2.0
Hydroxyl Value (as KOH) mg/g: 197-217
Iodine Value (as I2) g/100g: ≤2.0

USP
Appearance: White solid
C18: ≥90
Melting Point, °C: 55-60
Acid Value (as KOH) mg/g: ≤2.0
Hydroxyl Value (as KOH) mg/g: 195-220
Iodine Value (as I2) g/100g: ≤2.0