Glycerol CAS 56-81-5

Chemical Name: Glycerol

CAS Registry Number: 56-81-5

Molecular Formula: C₃H₈O₃

Molecular Weight: 92.09

Synonyms: Emery 912, Glyceol, Glycerin USP, Glycerine

Appearance: Colorless, transparent and viscous liquid

Sample Availability: Available

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

Products Description

Glycerol, also widely referred to as maleic-anhydride-cas-108-31-6.html">material/glycerol.html">Glycerin or Glycerine in commercial markets, is a naturally occurring trihydric alcohol. The term "Glycerol" is generally used to define the pure chemical compound, while Glycerin and Glycerine are the common names for commercial-grade products used across industrial and daily use scenarios.

This substance features distinct sweet taste and strong hygroscopic properties. It shows excellent physical and chemical stability under normal ambient conditions.

  • Melting Point: 18.17 °C
  • Boiling Point: 290 °C
  • Relative Density: 1.261 g/cm³ (20 °C)
  • Solubility: Fully miscible with water and alcohols; slightly soluble in common organic solvents; practically insoluble in oils, fats and hydrocarbons
  • Viscosity: High viscosity at room temperature
  • Odor: Odorless

Glycerol

Chemical Properties

ItemValue
Melting point20 °C(lit.)
Boiling point290 °C
density1.25 g/mL(lit.)
vapor density3.1 (vs air)
vapor pressure<1 mm Hg ( 20 °C)
refractive indexn20/D 1.474(lit.)
FEMA2525
Fp320 °F
storage temp.Store at +5°C to +30°C.
solubilityH2O: 5 M at 20 °C, clear, colorless
pka14.15(at 25℃)
formViscous Liquid
colorAPHA: ≤10
Specific Gravity1.265 (15/15℃)1.262
OdorOdorless.
PH Range5.5 - 8
PH5.5-8 (25℃, 5M in H2O)
explosive limit2.6-11.3%(V)
Odor Typeodorless
biological sourcesynthetic (organic)
Water Solubility>500 g/L (20 ºC)
SensitiveHygroscopic
λmaxλ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.04
Merck14,4484
JECFA Number909
BRN635685
Dielectric constant47.0(Ambient)
Exposure limitsOSHA: TWA 15 mg/m3; TWA 5 mg/m3
Stability:Stable. Incompatible with perchloric acid, lead oxide, acetic anhydride, nitrobenzene, chlorine, peroxides, strong acids, strong bases. Combustible.
Cosmetics Ingredients FunctionsHUMECTANT
SKIN CONDITIONING - HUMECTANT
DENATURANT
FRAGRANCE
SOLVENT
SKIN PROTECTING
VISCOSITY CONTROLLING
PERFUMING
ORAL CARE
HAIR CONDITIONING
InChIKeyPEDCQBHIVMGVHV-UHFFFAOYSA-N
LogP-2.32
Surface tension64mN/m at 20°C
CAS DataBase Reference56-81-5(CAS DataBase Reference)
NIST Chemistry Reference1,2,3-Propanetriol(56-81-5)
EPA Substance Registry SystemGlycerine (56-81-5)
Absorption≤0.02 at 280nm in H2O at 0.5M
≤0.07 at 260nm in H2O at 0.5M

Safety Information

ItemValue
Hazard CodesF,Xn
Risk Statements36-20/21/22-11
Safety Statements24/25-39-26
RIDADRUN 1282 3/PG 2
WGK Germany1
RTECSMA8050000
F3
Autoignition Temperature698 °F
TSCATSCA listed
HS Code29054500
Hazardous Substances Data56-81-5(Hazardous Substances Data)
ToxicityLD50 in rats (ml/kg): >20 orally; 4.4 i.v. (Bartsch)

Product Application

Glycerol is a versatile industrial raw material and auxiliary agent with broad application coverage in chemical manufacturing, daily chemicals, food industry and other professional fields.

Chemical Industry

It acts as an essential raw material for synthesizing nitroglycerin, glyceryl acetate, various surfactants, natural and synthetic flavors, alkyd resins and ester gums. It is also a standard ingredient in different antifreeze formulations for industrial systems.

Daily Chemical & Printing Industry

Widely adopted in the production of cosmetics and printing inks, functioning as a moisturizer, solvent and viscosity regulator to optimize product performance and texture.

Food Industry

It serves multiple functional roles in food processing:

  • Acts as an effective humectant to maintain moisture and soft texture of bread, cakes and other baked goods;
  • Works as a carrier solvent for food flavors, pigments and water-soluble preservatives;
  • Used as a thickening agent for beverages and wine products;
  • Serves as a plasticizer for candies, desserts and meat products;
  • Applied as a natural sweetener in various food formulas.

Other Professional Applications

It can be used as a stationary phase for gas chromatographic analysis in laboratory and analytical testing work.

Supply & Delivery

Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days

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