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Methanol

Standard GB338-1992 
Molecular formula: CH3OH 
Molecular weight: 32.042 
Properties: Industrial Methanol is toxic, inflammable, explosive. In NTP, Methanol为 colorless , transparent , flow, volatile liquid, with ethanol-like odor 
Uses: widely used in chemical production, or used in pesticide and drug.
Cautions: 
1) Transportation: Transported in metal pail, rail tank or tank car, the Transportation and trade enterprises should have license.
    2) Storage: Kept in tank and metal pail in cool and ventilating place, far away from fire and avoid volatility.

Quality Standard: 

Item

Index

Top-grade

First grade

Qualified product

Chroma (Co-Pt)≤

5

5

10

Temperature range( 0 ℃ , 101325Pa ), ℃≤

64.0-65.5

Boiling range(include 64.6 ± 0.1 ℃ ),℃≤

0.8

1.0

1.5

Density( 20 ℃), g/cm2

0.791-0.792

0.791-0.793

0.791-0.793

Potassium permanganate test min≥

50

30

20

Water solubility test

clear

Moisture

0.1

0.15

-

Acidity (as HCOOH )), %≤

0.0015

0.003

0.005

Alkalinity (as NH3 ), %≤

0.0002

0.0008

0.0015

carbonyl compound ( CH2O ), %≤

0.002

0.005

0.01

Residue on evaporation , %≤

0.001

0.003

0.005

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