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Glycerin CAS 56-81-5 Featured Image
  • Glycerin CAS 56-81-5 1

Glycerin CAS 56-81-5

Chemical Property:

Molecular Formula C3H8O3
Molar Mass 92.09
Density 1.25 g/mL(lit.)
Melting Point 20°C(lit.)
Boling Point 290 °C
Specific Rotation(α) n20/D 1.474 (lit.)
Flash Point 320°F
JECFA Number 909
Water Solubility >500 g/L (20 ºC)
Solubility It is miscible in alcohol, miscible with water, insoluble in chloroform, ether, and oil.
Vapor Presure <1 mm Hg ( 20 °C)
Vapor Density 3.1 (vs air)
Appearance Clear Viscous Liquid
Specific Gravity 1.265 (15/15℃)1.262
Color APHA: ≤10
Odor Odorless.
Exposure Limit OSHA: TWA 15 mg/m3; TWA 5 mg/m3
Maximum wavelength(λmax) ['λ: 260 nm Amax: 0.05',
, 'λ: 280 nm Amax: 0.04']
Merck 14,4484
BRN 635685
pKa 14.15(at 25℃)
PH 5.5-8 (25℃, 5M in H2O)
Storage Condition Store at +5°C to +30°C.
Stability Stable. Incompatible with perchloric acid, lead oxide, acetic anhydride, nitrobenzene, chlorine, peroxides, strong acids, strong bases. Combustible.
Sensitive Hygroscopic
Explosive Limit 2.6-11.3%(V)
Refractive Index n20/D 1.474(lit.)
MDL MFCD00004722
Physical and Chemical Properties Colorless, transparent, odorless, viscous liquid, sweet, with hygroscopicity.
The solubility is miscible with water and ethanol, and the aqueous solution is neutral. Dissolve in 11 times of ethyl acetate, about 500 times of ether. Insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether, oil.
Use Used as basic organic chemical raw materials, widely used in medicine, food, daily chemical, textile, paper, paint and other industries

Product Detail

Product Tags

Risk Codes R36 – Irritating to the eyes
R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
R11 – Highly Flammable
Safety Description S24/25 – Avoid contact with skin and eyes.
S39 – Wear eye / face protection.
S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDs UN 1282 3/PG 2
WGK Germany 1
RTECS MA8050000
FLUKA BRAND F CODES 3
TSCA Yes
HS Code 29054500
Toxicity LD50 in rats (ml/kg): >20 orally; 4.4 i.v. (Bartsch)

 

Introduction

Soluble in water and alcohol, insoluble in ether, benzene, chloroform and carbon disulfide, and easily absorb water in the air. It has a warm sweet taste. It can absorb moisture from the air, as well as hydrogen sulfide, hydrogen cyanide and sulfur dioxide. Neutral to litmus. Long-term at a low temperature of 0 ℃, strong oxidants such as chromium trioxide, potassium chlorate, and potassium permanganate can cause combustion and explosion. Can be arbitrarily miscible with water and ethanol, 1 part of this product can be soluble in 11 parts of ethyl acetate, about 500 parts of ether, insoluble in chloroform, carbon tetrachloride, petroleum ether and oils. Median lethal dose (rat, oral)>20ml/kg. It’s irritating.

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