398039

1,2-Propanediol

ACS reagent, ≥99.5%

• Synonym(s): 1,2-PDO, Propylene glycol
• Linear Formula: CH₃CH(OH)CH₂OH
• CAS Number: 57-55-6
• Molecular Weight: 76.09
• Beilstein/REAXYS Number: 1340498
• EC Number: 200-338-0
• MDL number: MFCD00064272
• UNSPSC Code: 12352100
• PubChem Substance ID: 24864713
• NACRES: NA.21

Properties

• 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
• 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.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 219.2 °F - closed cup
• flash_point_c: 104 °C - closed cup
• ppe: Eyeshields, Gloves