GlycerolCAS#56-81-5

Superb Hygroscopic & Moisturizing Performance‌:Highly hygroscopic to capture ambient moisture, ideal for moisturizing use in cosmetics, pharmaceuticals and food preservation, with a stable neutral pH range of 5.5–8.

Reliable Thermal Stability & Operational Safety‌:Thermally stable up to 290°C, with low flammability (160°C flash point) and extremely low acute toxicity (rat oral LD₅₀ >20 mL/kg), fully compatible with high-temperature processing scenarios.

Eco-Friendly Circular Utility‌:Produced as a high-value byproduct from biodiesel manufacturing, it delivers cost-effective performance in livestock feed, medical enemas and green antifreeze, cutting industrial waste and boosting resource recycling efficiency.

Product Details
Product Properties
Product Application

Product Details

Our high-purity glycerin, also widely known as glycerol, is a colorless, odorless, naturally sweet viscous fluid. It features a 290°C high boiling point, 17.9°C melting point and 1.2613 stable relative density, mixes completely with water in all proportions, and anhydrous grade delivers excellent strong moisture-absorbing performance.

GlycerolCAS#56-81-5

Product Properties

Melting point 20 °C(lit.)
Boiling point 290 °C
density 1.25 g/mL(lit.)
vapor density 3.1 (vs air)
vapor pressure <1 mm Hg ( 20 °C)
refractive index n20/D 1.474(lit.)
FEMA 2525 | GLYCEROL
Fp 320 °F
storage temp. Store at +5°C to +30°C.
solubility H2O: 5 M at 20 °C, clear, colorless
pka14.15(at 25℃)
form Viscous Liquid
color APHA: ≤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)
Sensitive Hygroscopic
λmaxλ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.04
Merck 14,4484
JECFA Number909
BRN 635685
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.
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

Hazard Codes F,Xn
Risk Statements 36-20/21/22-11
Safety Statements 24/25-39-26
RIDADR UN 1282 3/PG 2
WGK Germany 1
RTECS MA8050000
F 3
Autoignition Temperature698 °F
TSCA Yes
HS Code 29054500
Hazardous Substances Data56-81-5(Hazardous Substances Data)
ToxicityLD50 in rats (ml/kg): >20 orally; 4.4 i.v. (Bartsch)

Product application

Cosmetic & Personal Care‌:Highly hygroscopic moisturizing ingredient for skincare creams, toothpaste and body care products, delivering long-lasting hydration without disrupting skin's natural pH balance .

Food & Beverage Processing‌:FEMA 2525 certified sweetener and humectant, widely used in baked goods, confectionery and beverage formulations to lock in moisture and adjust mild sweetness .

Pharmaceutical & Medical Field‌:Serves as solvent, hygroscopic agent and antifreeze for drug preparations, and is a core raw material for topical ointments, suppositories and clinical enema formulations .

Industrial Fine Chemicals‌:Key feedstock for producing polyurethanes, surfactants, paints and inks, also used as stabilizer in tobacco processing to maintain consistent moisture content .

Laboratory & Scientific Research‌:Standard reagent for polyacrylamide gel electrophoresis, used to increase sample density and optimize gel formation in biochemistry experiments .

Agriculture & Eco-Friendly Scenarios‌:Cost-effective additive for livestock feed, and core component of non-corrosive green antifreeze, supporting circular economy utilization of biodiesel byproducts.

GlycerolCAS#56-81-5