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398039

1,2-Propanediol

Name: 1,2-Propanediol
Brand: SIAL

ACS reagent grade, ≥99.5%, liquid

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:

24864713

UNSPSC Code:

12352100

EC Number:

200-338-0

MDL number:

MFCD00064272

Beilstein/REAXYS Number:

1340498

Assay:

≥99.5%

Form:

liquid

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Properties

Product Name

1,2-Propanediol, ACS reagent, ≥99.5%

grade

ACS reagent

Quality Level

200

vapor density

2.62 (vs air)

vapor pressure

0.08 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

779 °F

expl. lim.

12.5 %

impurities

≤0.0005 meq/g Titr. acid, ≤0.2% water

ign. residue

≤0.005%

color

APHA: ≤10

refractive index

n20/D 1.432 (lit.)

bp

187 °C (lit.)

mp

−60 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤1 ppm

functional group

hydroxyl

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, a 1,2-alkanediol is an industrially important chemical. Due to its increasing demand many green methods have been proposed for its synthesis mainly using the inexpensive glycerol as the starting material. It is a raw material for the synthesis of intermediates, building blocks and polymers.

Application

1,2-Propanediol may be used in the following processes:

Green synthesis of propylene carbonate.
Production of lactic acid by green catalytic oxidation.
Propanal generation by catalytic dehydration.

Other Notes

The article number 398039-4X2L will be discontinued. Please order the single bottle 398039-2L which is physically identical with the same exact specifications.

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Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

398039-25ML:4.548173385457E12 + 398039-500ML:4.548173391069E12

jan

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Catalytic conversion of ethyl lactate to 1,2-propanediol over CuO.

Zhang S, et al.

Chinese Journal of Chemical Engineering (2015)

Selective oxidation of 1,2-propanediol to lactic acid catalyzed by hydroxylapatite nanorod-supported Au/Pd bimetallic nanoparticles under atmospheric pressure.

Feng Y, et al.

J. Catal., 316, 67-77 (2014)

Catalytic Dehydration of 1,2-Propanediol into Propanal over Ag-Modified Silica-Alumina.

Sun D, et al.

Chemistry Letters (Jpn), 43(4), 450-452 (2014)

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