- Overview
- Product Description
Basic Info.
Model NO.
THF
Type
Amphiprotic Solvent
Composition
Inorganic
Usage
Dissolved, Medium, Bonding
Flux Type
Basic Flux
Molecular Weight
72.107
CAS
109 99 9
Melting Point
-108.5 °c
Boiling Point
66 °c
Water Solubility
Soluble
Density
0.89 G/Cm³
Appearance
Colorless Transparent Liquid
Flash Point
-14 °c (Cc)
Safety Description
S16; S26; S29; S33; S36
Hazard Symbol
F
Hazard Description
R11; R19; R36/37
Un Dangerous Goods Number
2924
Transport Package
Drum
Specification
180kg/drum
Origin
China
HS Code
29321100
Production Capacity
50000 Pieces/Year
Product Description
| safety/security information | |
| CAS | 109/99/9 |
| EINECS | 203-786-5 |
| Chemical formula | C4H8O |
| Molecular weight | 72.107 |
| Melting point | -108.5 °C |
| Boiling point | 66 °C |
| Water solubility | soluble |
| Density | 0.89 g/cm³ |
| Appearance | colorless transparent liquid |
| Flash point | -14 °C (CC) |
| Safety description | S16; S26; S29; S33; S36 |
THF is produced in quantities of about 200,000 tonnes per year. [2] The most widely used method is the acid-catalyzed dehydration , similar to the dehydration of ethanol to produce ethylene. Butanediol can be obtained by carbonylation of acetylene followed by hydrogenation. DuPont has developed a method for producing by oxidation followed by catalytic hydrogenation. [3] Butanediol can also be produced by hydroformylation followed by hydrogenation. THF can also be produced by catalytic hydrogenation of f. .F can be derived from pentose sugars. However, this method is not widely used.
THF can be polymerized into chain-like polytetramethylene oxide (PTMEG) in a strong acidic environment. CAS No. [25190-06-1], also known as PTMO, which stands for "polytetramethylene oxide". Its basic use is to make elastic polyurethane fibers, such as spandex.
