sigma現貨1,2-丙二醇/1,2-Propanediol貨號:398039
更新時間:2011-05-31 點擊:1611
398039
Sigma-Aldrich
1,2-Propanediol
ACS reagent, ≥99.5%
Synonym: | Propylene glycol |
CAS Number: | 57-55-6 |
Linear Formula: | CH3CH(OH)CH2OH |
Molecular Weight: | 76.09 |
Beilstein Registry Number: | 1340498 |
EC Number: | 200-338-0 |
Description
Packaging | 2 L in glass btl |
25, 500 mL in glass btl |
性質
grade | ACS reagent |
vapor density | 2.62 (vs air) |
vapor pressure | 0.08 mmHg ( 20 °C) |
assay | ≥99.5% |
autoignition temp. | 779 °F |
expl. lim. | 12.5 % |
total impurities | ≤0.0005 meq/g Titr. acid |
≤0.2% water | |
ign. residue | ≤0.005% |
color | ≤10(APHA) |
refractive index | n |
bp | 187 °C(lit.) |
mp | −60 °C(lit.) |
density | 1.036 g/mL at 25 °C(lit.) |
anion traces | chloride (Cl-): ≤1 ppm |
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