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AR
LABOR
149702104
Tetrahydrofuran 99% AR Grade Reagent
Cas Number:109-99-9
Formula: C4H8O
Molar Mass:72.11
EC Number:203-726-8
Physicochemical properties:
Colorless liquid with ether-like odor. It is miscible with water, alcohols, ethers, ketones, esters and hydrocarbons. The relative density (d204) is 0.8892. The melting point is -108.5 ° C. The boiling point is 66 ° C. The refractive index (n20D) is 1.4070.The flash point is -17 ° C. Combustible. Irritating. It is easy to form peroxide during storage, and can be added with 0.0025% to 0.025% 2,6-di-tert-butyl-p-cresol (BHT) as a stabilizer.
Usage:
High-pressure liquid chromatography UV spectrophotometric analysis. Paper chromatography of amino acids and peptides. Solvent. Organic Synthesis.
Packing:
500ml/25L/200L
Tetrahydrofuran 99% AR Grade Reagent
Cas Number:109-99-9
Formula: C4H8O
Molar Mass:72.11
EC Number:203-726-8
Physicochemical properties:
Colorless liquid with ether-like odor. It is miscible with water, alcohols, ethers, ketones, esters and hydrocarbons. The relative density (d204) is 0.8892. The melting point is -108.5 ° C. The boiling point is 66 ° C. The refractive index (n20D) is 1.4070.The flash point is -17 ° C. Combustible. Irritating. It is easy to form peroxide during storage, and can be added with 0.0025% to 0.025% 2,6-di-tert-butyl-p-cresol (BHT) as a stabilizer.
Usage:
High-pressure liquid chromatography UV spectrophotometric analysis. Paper chromatography of amino acids and peptides. Solvent. Organic Synthesis.
Packing:
500ml/25L/200L
Item of Analysis | Standard |
Assay,% | 99.0 min |
Density(20℃),g/ml | 0.887~0.889 |
Refractive index,n20/D | 1.407~1.408 |
Evaporating leavings,% | 0.0015 max |
Moisture,% | 0.1 max |
Item of Analysis | Standard |
Assay,% | 99.0 min |
Density(20℃),g/ml | 0.887~0.889 |
Refractive index,n20/D | 1.407~1.408 |
Evaporating leavings,% | 0.0015 max |
Moisture,% | 0.1 max |
Symbol | |
Signal word | Danger |
Hazard statement | H225 |
H302 | |
H313 | |
H319 | |
H335 | |
H336 | |
H351 | |
Precautionary statements—Prevention | P201 |
P202 | |
P210 | |
P233 | |
P240 | |
P241 | |
P242 | |
P243 | |
P261 | |
P264 | |
P270 | |
P271 | |
P280 | |
Precautionary statements—Response | P301+P312+P330 |
P303+P361+P353 | |
P304+P340+P312 | |
P305+P351+P338 | |
P312 | |
P337+P313 | |
P370+P378 | |
Precautionary statements—Storage | P403+P233 |
P403+P235 | |
P405 | |
UN No. | 2056 |
Hazard Class | 3 |
Package Group | II |
Flashpoint | -17°C |
Boiling point | 66°C |
Melting point | -108.5°C |
Symbol | |
Signal word | Danger |
Hazard statement | H225 |
H302 | |
H313 | |
H319 | |
H335 | |
H336 | |
H351 | |
Precautionary statements—Prevention | P201 |
P202 | |
P210 | |
P233 | |
P240 | |
P241 | |
P242 | |
P243 | |
P261 | |
P264 | |
P270 | |
P271 | |
P280 | |
Precautionary statements—Response | P301+P312+P330 |
P303+P361+P353 | |
P304+P340+P312 | |
P305+P351+P338 | |
P312 | |
P337+P313 | |
P370+P378 | |
Precautionary statements—Storage | P403+P233 |
P403+P235 | |
P405 | |
UN No. | 2056 |
Hazard Class | 3 |
Package Group | II |
Flashpoint | -17°C |
Boiling point | 66°C |
Melting point | -108.5°C |