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82280

1,2-Propanediol

Name: 1,2-Propanediol
Brand: SIAL

ACS reagent grade, ≥99.5% (GC), viscous liquid, puriss. p.a.

Synonym(s):

1,2-PDO, Propylene glycol

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About This Item

Linear Formula:

CH₃CH(OH)CH₂OH

CAS Number:

57-55-6

Molecular Weight:

76.09

NACRES:

NA.21

PubChem Substance ID:

57652909

UNSPSC Code:

12352100

EC Number:

200-338-0

MDL number:

MFCD00064272

Beilstein/REAXYS Number:

1340498

Assay:

≥99.5% (GC)

Form:

viscous liquid

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Properties

Product Name

1,2-Propanediol, puriss. p.a., ACS reagent, ≥99.5% (GC)

Quality Segment

200

vapor density

2.62 (vs air)

vapor pressure

0.08 mmHg ( 20 °C)

grade

ACS reagent, puriss. p.a.

assay

≥99.5% (GC)

form

viscous liquid

autoignition temp.

779 °F

shelf life

3 yr

expl. lim.

12.5 %

impurities

≤0.003% free acid (as CH₃COOH), ≤0.1% water

evapn. residue

≤0.005%

ign. residue

<0.005% (as SO₄)

refractive index

n20/D 1.432 (lit.), n20/D 1.433

bp

187 °C (lit.)

mp

−60 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤1 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg

cation traces

Ca: ≤5 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤1 mg/kg, K: ≤20 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Na: ≤20 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Zn: ≤5 mg/kg

SMILES string

CC(O)CO

InChI

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

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

Description

General description

1,2-Propanediol is a 1,2-alkanediol. It can be obtained from glycerol, via hydrogenolysis in the presence of Ru/C and Amberlyst ion-exchange resins.

Application

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

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Storage Class

10 - Combustible liquids

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

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