| 109-72-8 Basic information More.. |
Product Name: | n-Butyllithium | Synonyms: | LITHIUMBUTYL;N-BUTYLLITHIUM;BUTYLLITHIUM SOLUTION, ~2.7 M IN HEPTANE;N-BUTYLLITHIUM, 2.2M SOLUTION IN CYCLOHEXANE;n-Butyllithium1.6M solution in hexanesAcroSeal§3;n-Butyllithium2.5M solution in hexanesAcroSeal§3;n-Butyllithium2.2M solution in cyclohexaneAcroSeal§3;n-Butyllithium2.6M solution in tolueneAcroSeal§3 | CAS: | 109-72-8 | MF: | C4H9Li | MW: | 64.06 | EINECS: | 203-698-7 | Mol File: | 109-72-8.mol | |
Use
N-Butyllithium must be calibrated through single titration as follows:
1) Titration solution: 1mol/L SEC butanol/dimethylbenzene solution (butanol and dimethylbenzene must be dried with an activated 5A molecular sieve)
2) Indicator: 2,2-dipyridine
3) Solvent: dimethylbenzene (must be dried with an activated 5A molecular sieve).
4) Operation method: Under the protection of argon, add magneton, 20ml dimethylbenzene and a small amount of indicator into a 100ml 3-lipped bottle with a tipping plug. Then use a precisely marked 2ml injector to swiftly transfer 2ml N-Butyllithium into the bottle (the air in the injector must be replaced with argon, which must then be expelled when collecting the N-Butyllithium; fill and drain the injector in the N-Butyllithium multiple times to prevent any water or air from remaining in the injector). The system should turn a purplish red. Then, wash, dry, and rinse the same injector with titration solution 2-3 times (to prevent any change in the amount added) and titrate the solution until the system turns yellow, and cease titration.
5) Repeat titration once; if the percent error between the two times is within 2%, the result can be regarded as correct.
6) Titration result: titration solution (ml)/2 to obtain N-Butyllithium concentration.
- N-Butyllithium
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- US $9.00 / ASSAYS
- 2024-09-19
- CAS:109-72-8
- Min. Order: 1ASSAYS
- Purity: 99%
- Supply Ability: 10000kg
- n-Butyllithium
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- US $50.00-1.00 / KG
- 2023-12-23
- CAS:109-72-8
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: g-kg-tons, free sample is available
- n-Butyllithium
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- US $0.00-0.00 / kg
- 2023-11-16
- CAS:109-72-8
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 50000kg
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109-72-8
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