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AR
LABOR
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% 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
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 |