Merck
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16033

Sigma-Aldrich

1,2-Propanediol

meets analytical specification of Ph. Eur., BP, USP, ≥99.5%

Synonym(s):
1,2-PDO, Propylene glycol
Linear Formula:
CH3CH(OH)CH2OH
CAS Number:
Molecular Weight:
76.09
Beilstein:
1340498
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

densidad de vapor

2.62 (vs air)

Nivel de calidad

200

presión de vapor

0.08 mmHg ( 20 °C)

ensayo

≥99.5%

formulario

liquid

temp. de autoignición

779 °F

calidad

meets analytical specification of Ph. Eur., BP, USP

caducidad

24 mo.

lim. expl.

12.5 %

impurezas

acidic reac. impurities, complies
organic volatile impurities, complies (GC)
oxidizing substances, complies
reducing matter, complies
residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.002% free alkali (as NaOH)
≤0.003% free acid (as CH3COOH)
≤0.2% water (Karl Fischer)

residuo de ign.

≤0.005% (as SO4)

índice de refracción

n20/D 1.431-1.433
n20/D 1.432 (lit.)

bp

187 °C (lit.)

mp

−60 °C (lit.)

densidad

1.036 g/mL at 25 °C (lit.)

trazas de anión

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

idoneidad

complies for appearance of solution

SMILES string

CC(O)CO

InChI

1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

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Descripción general

1,2-Propanediol is an 1,2-alkanediol. It can be obtained from glycerol, via hydrogenolysis in the presence of Ru/C and Amberlyst ion-exchange resins.
1,2-Propanediol is an important petrochemical that can be prepared by the hydrogenolysis of glycerol. It is mainly used as a cryoprotectant for biological samples and also as an additive in food, cosmetic and pharmaceutical industries.

Aplicación

1,2-Propanediol may be employed as a cryoprotective agent for the preservation (by cooling to sub-zero temperatures) of human embryos and and oocytes (human and mouse).

Envase

bottled under inert gas

Otras notas

The article number 16033-4X5L will be discontinued. Please order the single bottle 16033-5L which is physically identical with the same exact specifications.
The article number 16033-6X1L will be discontinued. Please order the single bottle 16033-1L which is physically identical with the same exact specifications.
The article number 16303-4X2.5L-R will be discontinued. Please order the single bottle 16303-2.5L-R which is physically identical with the same exact specifications.

Código de clase de almacenamiento

10 - Combustible liquids

WGK

WGK 1

Punto de inflamabilidad F

219.2 °F - closed cup

Punto de inflamabilidad C

104 °C - closed cup

Equipo de protección personal

Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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