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HomeProduct name listButyl stearate

Butyl stearate

Synonym(s):Stearic acid butyl ester

  • CAS NO.:123-95-5
  • Empirical Formula: C22H44O2
  • Molecular Weight: 340.58
  • MDL number: MFCD00026669
  • EINECS: 204-666-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:08:52
Butyl stearate  Structural

What is Butyl stearate ?

Chemical properties

Butyl stearate is a colorless or pale yellow oily liquid or low melting waxy solid. It has no odor or a faintly fatty odor. soluble in acetone, chloroform, soluble in ethanol, insoluble in water.

Occurrence

Reported found in fresh apple and boiled mutton.

The Uses of Butyl stearate

Butyl stearate is used as finishing agents, lubricants and lubricant additives. It is also used as a plasticizer, food packaging material and as a dye solvent. It acts as a reactant and involved in the preparation of octadecanoic acid methyl ester by reacting with methanol. It finds application as a binder in cosmetics like soaps, shampoos and shaving creams, skin conditioners and surfactants for cosmetic formulations.

The Uses of Butyl stearate

butyl stearate is a stearic acid used in very small quantities in cosmetic preparations as an emulsifier for creams and lotions. It has been shown to cause allergic reactions.

Definition

ChEBI: Butyl octadecanoate is a fatty acid ester that is the butyl ester of stearic acid. It has a role as an algal metabolite. It derives from an octadecanoic acid.

Preparation

Butyl stearate is obtained by esterification of stearic acid and butanol, dealcoholization, washing with water and pressure filtration.
By reacting silver state with n-butyl iodide at 100°C by transesterification of glyceryl tristearate (tristearin) with n-butyl alcohol.

General Description

Butyl stearate is a fatty acid ester, which has application in cosmetics, personal care products, and as an emollient in food industries.

Purification Methods

Acidic impurities are removed by shaking with 0.05M NaOH or a 2% NaHCO3 solution, followed by several water washes, then purified by fractional freezing of the melt and fractional crystallisation from solvents with boiling points below 100o. [Beilstein 2 IV 1219.]

Properties of Butyl stearate

Melting point: 17-22 °C
Boiling point: 220°C (25 mmHg)
Density  0.861 g/mL at 20 °C(lit.)
refractive index  n20/D 1.443
FEMA  2214 | BUTYL STEARATE
Flash point: 25 °C
storage temp.  2-8°C
form  Liquid
color  White or Colorless to Light yellow
Specific Gravity 0.856
Odor at 100.00 %. mild fatty oily
Water Solubility  Immiscible with water. Miscible with ethanol and acetone
FreezingPoint  25.0 to 27.0 ℃
JECFA Number 184
Merck  14,1589
BRN  1792866
Exposure limits ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
Dielectric constant 3.1(30℃)
CAS DataBase Reference 123-95-5(CAS DataBase Reference)
NIST Chemistry Reference Octadecanoic acid, butyl ester(123-95-5)
EPA Substance Registry System Butyl stearate (123-95-5)

Safety information for Butyl stearate

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for Butyl stearate

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