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Methanol Absolute 99.5% AR Reagent

Cas Number:67-56-1
Formula:CH4O
Molar Mass:32.04
EC Number:200-659-6

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Model:
AR
Brand:
LABOR
Code:
128202104

Methanol Absolute 99.5% AR Reagent

Cas Number:67-56-1

Formula:CH₄O

Molar Mass:32.04

EC Number:200-659-6

Physicochemical properties：

It is same as methanol but with very little moisture.

Usage:

It is used to prepare Karl Fischer reagent for the determination of trace moisture in alcohols, saturated hydrocarbons, benzene, chloroform and pyridine.

Packing:

500ml/25L/200L

Methanol Absolute 99.5% Methyl Alcohol Absolute AR Reagent

Item of Analysis	Standard
Assay,%	99.5 min
Density(20℃),g/ml	0.791~0.793
Miscibility with water	to pass test
Evaporating leavings,%	0.001 max
Moisture,%	0.05 max
Acidity (as H⁺) mmol/g	0.0004 max
Alkalinity (as OH^-) mmol/g	0.00008 max
Carboxide(as CO),%	0.005 max
Really carbonized substances	to pass test
Substance reducing potassium permanganate(as O),%	0.0005 max

Item of Analysis	Standard
Assay,%	99.5 min
Density(20℃),g/ml	0.791~0.793
Miscibility with water	to pass test
Evaporating leavings,%	0.001 max
Moisture,%	0.05 max
Acidity (as H⁺) mmol/g	0.0004 max
Alkalinity (as OH^-) mmol/g	0.00008 max
Carboxide(as CO),%	0.005 max
Really carbonized substances	to pass test
Substance reducing potassium permanganate(as O),%	0.0005 max

Symbol
Signal word	Danger
Hazard statement	H225
	H301+H311+H331 H370
Precautionary statements—Prevention	P210
	P233
	P240
	P241
	P242
	P243
	P260
	P264
	P270
	P271
	P280
Precautionary statements—Response	P301+P310+P330
	P303+P361+P353
	P304+P340+P311
	P308+P311
	P361+P364
	P370+P378
Precautionary statements—Storage	P403+P233
	P403+P235
	P405
UN No.	1230
Hazard Class	3+6.1
Package Group	II
Flashpoint	9.7 °C
Boiling point	64.7°C
Freezing point	-98°C

Symbol
Signal word	Danger
Hazard statement	H225
	H301+H311+H331 H370
Precautionary statements—Prevention	P210
	P233
	P240
	P241
	P242
	P243
	P260
	P264
	P270
	P271
	P280
Precautionary statements—Response	P301+P310+P330
	P303+P361+P353
	P304+P340+P311
	P308+P311
	P361+P364
	P370+P378
Precautionary statements—Storage	P403+P233
	P403+P235
	P405
UN No.	1230
Hazard Class	3+6.1
Package Group	II
Flashpoint	9.7 °C
Boiling point	64.7°C
Freezing point	-98°C

Methanol Absolute 99.5% AR Reagent

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