Products Description of Glycerin CAS# 56-81-5
Glycerin (commonly referred to as glycerol) is a pure viscous liquid characterized by colorlessness, odorlessness, and a sweet taste. Its boiling point is 290℃, melting point is 17.9℃, and relative density is 1.2613. It is infinitely miscible with water, and anhydrous glycerin exhibits strong water absorption capacity.
Parameters
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 |
pka | 14.15(at 25℃) |
form | Viscous Liquid |
color | APHA: ≤10 |
Specific Gravity | 1.265 (15/15℃)1.262 |
Odor | Odorless. |
PH Range | 5.5 - 8 |
PH | 5.5-8 (25℃, 5M in H2O) |
explosive limit | 2.6-11.3%(V) |
Odor Type | odorless |
biological source | synthetic (organic) |
Water Solubility | >500 g/L (20 ºC) |
Sensitive | Hygroscopic |
λmax | λ: 260 nm Amax: 0.05 |
Merck | 14,4484 |
JECFA Number | 909 |
BRN | 635685 |
Dielectric constant | 47.0（Ambient） |
Exposure limits | OSHA: 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. |
InChIKey | PEDCQBHIVMGVHV-UHFFFAOYSA-N |
LogP | -2.32 |
Surface tension | 64mN/m at 20°C |
CAS DataBase Reference | 56-81-5(CAS DataBase Reference) |
NIST Chemistry Reference | 1,2,3-Propanetriol(56-81-5) |
EPA Substance Registry System | Glycerine (56-81-5) |
Absorption | ≤0.02 at 280nm 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 Temperature | 698 °F |
TSCA | Yes |
HS Code | 29054500 |
Hazardous Substances Data | 56-81-5(Hazardous Substances Data) |
Toxicity | LD50 in rats (ml/kg): >20 orally; 4.4 i.v. (Bartsch) |
Product Application of Glycerin CAS# 56-81-5
In polyacrylamide gel electrophoresis, glycerol supports both sample prep and gel formation. It densifies samples (5–10% concentration) for proper well layering, aids gradient gel casting, and stabilizes proteins as part of storage buffers.
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Inventory 2-3 working days New production 7-10 working days
