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

SKU:
82280-1L
  • $154.00

    • Description

    1,2-Propanediol

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

    Synonym(s):
    1,2-PDO, Propylene glycol
    Linear Formula:
    CH3CH(OH)CH2OH
    CAS Number:
    57-55-6
    Molecular Weight:
    76.09
    Beilstein:
    1340498
    EC Number:
    200-338-0
    MDL number:
    MFCD00064272
    PubChem Substance ID:
    57652909
    NACRES:
    NA.21

    PROPERTIES

    grade

    ACS reagent
    puriss. p.a.

    Quality Level

    200

    vapor density

    2.62 (vs air)

    vapor pressure

    0.08 mmHg ( 20 °C)

    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 (SO42-): ≤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.[1]

    Application

    1,2-Propanediol (propanediol) may be employed as a cryoprotective agent for the preservation (by cooling to sub-zero temperatures) of human embryos[2] and oocytes (human and mouse).[3]

    SAFETY INFORMATION

    Storage Class Code

    10 - Combustible liquids

    WGK

    WGK 1

    Flash Point(F)

    219.2 °F - closed cup

    Flash Point(C)

    104 °C - closed cup

    Personal Protective Equipment

    dust mask type N95 (US), Eyeshields, Gloves