Table of Contents
What is the melting point of toluene?
-139°F (-95°C)Toluene / Melting point
Does toluene evaporate completely?
Toluene evaporates rapidly from water with an experimentally determined half-life of 2.9 to 5.7 hr for evaporation from 1 m of water with moderate mixing conditions.
What is the boiling point of toluene at 600mm Hg?
| Property | Value | Value |
|---|---|---|
| Boiling Point | 383.8 | 231.1 |
| Critical density | 3.16 | 0.565 |
| Critical pressure | 4.13 | 40.7 |
| Critical temperature | 592 | 605 |
Does toluene evaporate?
Toluene will readily evaporate into the air or be degraded by microorganisms in surface waters. Leaking underground storage tanks can contaminate the soil with toluene and other petroleum-product components. Toluene in surface soils rapidly evaporates into the air.
Why does benzene have a lower boiling point but much higher melting point than toluene?
Benzene has a lower boiling point than toluene because it is more symmetrical. Benzene has a higher melting point than toluene because it has weaker intermolecular forces.
Which has highest boiling point?
Xenon has the highest boiling point.
What is the enthalpy of vaporization of toluene?
33.18
Enthalpy of vaporization
| ΔvapH (kJ/mol) | 33.18 |
|---|---|
| Temperature (K) | 383.8 |
| Method | N/A |
| Reference | Majer and Svoboda, 1985 |
What is the fire rating of toluene?
DOT#: UN 1294 ERG Guide #: 130 Hazard Class: 3 (Flammable) Toluene is a FLAMMABLE LIQUID. Use dry chemical, CO2, alcohol-resistant foam or other foaming agent as extinguishing agents, as water may not be effective in fighting fires.
Why does toluene have a higher boiling point?
In contrast, the boiling point of toluene is higher than that of benzene, indicating that the intermolecular attractive forces are larger in liquid toluene than in liquid benzene.
Why does benzene have a higher boiling point than toluene?
Which has lowest boiling point?
The chemical element with the lowest boiling point is Helium and the element with the highest boiling point is Tungsten.
How is toluene metabolized in the human body?
Toluene is metabolized to benzoic acid, followed by hepatic cytochrome P-450 catalyzed glycine conjugation to form hippuric acid. Approximately 75% to 80% of the absorbed toluene is metabolized to benzoic acid, and 62% to 72% is eliminated by humans in the urine as hippuric acid.
What are the chemical partition coefficients of toluene?
CHRIS – Hazardous Chemical Data. Volume II. Washington, D.C.: U.S. Government Printing Office, 1984-5. Partition coefficients at 37 °C for toluene into blood = 15.6; into oil = 1,470 Hydroxyl radical rate constant = 5.96X10-12 cu cm/molecule-sec @ 25 °C
What is the rate constant for the vapor phase reaction of toluene?
The rate constant for the vapor-phase reaction of toluene with photochemically-produced hydroxyl radicals has been measured as 5.96X10-12 cu cm/molecule-sec at 25 °C (1). This corresponds to an atmospheric half-life of about 2 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm (2).
What is the concentration of toluene in drinking water?
DRINKING WATER: Toluene was detected in 33% of the samples from 30 Canadian treatment facilities at an average concentration of 2 ppb (14 ppb max) in summer months and in 53% of the samples at an average concentration of <1 ppb (13 ppb max), during winter (1).