Other grades of this product :
| SEC-BUTYLLITHIUM Basic information |
| SEC-BUTYLLITHIUM Chemical Properties |
| density | 0.769 g/mL at 25 °C | | Fp | 1 °F | | storage temp. | 2-8°C | | form | Liquid | | color | Clear colorless | | Sensitive | Air & Moisture Sensitive | | BRN | 3587206 | | Exposure limits | ACGIH: TWA 100 ppmOSHA: TWA 300 ppm(1050 mg/m3)NIOSH: IDLH 1300 ppm; TWA 300 ppm(1050 mg/m3) | | InChIKey | VATDYQWILMGLEW-UHFFFAOYSA-N | | CAS DataBase Reference | 598-30-1(CAS DataBase Reference) | | EPA Substance Registry System | Lithium, (1-methylpropyl)- (598-30-1) |
| SEC-BUTYLLITHIUM Usage And Synthesis |
| Chemical Properties | sec-Butyllithium is a colorless crystalline solid or clear yellowish solution. It is more reactive than n-butyllithium. Its solutions are unstable and decompose about 10 to 15 times as fast as n-butyllithium under the same conditions.
| | Uses | sec-Butyllithium is used almost exclusively as a polymerization catalyst. It is more expensive than n-butyllithium and is used mainly because of its greater reactivity and faster polymerization initiation. | | Preparation | sec-Butyllithium is produced by the reaction of
sec-butyl chloride with lithium metal dispersion in hydrocarbon solvents. The lithium
metal should contain catalytic amounts of up to 2 % sodium metal to attain a rapid reaction
with the chloride and to minimize coupling. Massive substitution of sodium metal for
lithium metal as is done in the preparation of n-butyllithium results in lower yields. Isopentane,
hexane and cyclohexahe are typical solvents. Industrial and laboratory preparations
are similar. |
| SEC-BUTYLLITHIUM Preparation Products And Raw materials |
|
日本语
한국어
Français
Deutsch
España
Türkiye