n-Butyllithium manufacturers and suppliers

n-Butyllithium suppliers

Properties

Melting point:: -95 °C

Boiling point:: 80 °C

Density: 0.68 g/mL at 20 °C

vapor pressure: 163 hPa ( 20 °C)

Flash point:: 10 °F

storage temp.: 2-8°C

solubility: Miscible with diethyl ether and cyclohexane.

form: liquid

color: yellow

Specific Gravity: 0.695

Odor: Odor of the solvent

explosive limit: 1.2-7.8% (v/v)

Water Solubility: vigorous reaction

Sensitive: Air & Moisture Sensitive

Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents

BRN: 1209227

Exposure limits: ACGIH: TWA 50 ppm (Skin)
OSHA: TWA 500 ppm(1800 mg/m3)
NIOSH: IDLH 1100 ppm; TWA 50 ppm(180 mg/m3)

LogP: 1.25-2.31

CAS DataBase Reference: 109-72-8(CAS DataBase Reference)

NIST Chemistry Reference: Butyl lithium(109-72-8)

EPA Substance Registry System: Lithium, butyl- (109-72-8)

Safety Information

Symbol(GHS): GHS02,GHS05,GHS07,GHS08,GHS09

Signal word: Danger

Hazard statements: H225-H250-H261-H304-H314-H336-H361f-H373-H411-H260-H361d-H410-H252-H318-H332-H401-H361

Precautionary statements: P210-P222-P231+P232-P261-P273-P422-P223-P370+P378-P280-P301+P310-P302+P334-P303+P361+P353-P304+P340+P310-P305+P351+P338-P331-P201-P301+P310a-P405-P422a-P501a-P262

Hazard Codes: F,C,N

Risk Statements: 14/15-17-34-48/20-51/53-62-65-67-63-35-11-15-50/53-66

Safety Statements: 6-9-16-26-36/37/39-45-61-62-6A-46-43B-43-60-33-29-5

RIDADR: UN 3399 4.3/PG 1

WGK Germany: 3

F: 3-10

Autoignition Temperature: 240°C

TSCA: Yes

HazardClass: 4.3

PackingGroup: I

HS Code: 29319090

Toxicity: There is little toxicity data available for the butyllithiums; for data on ether and hydrocarbon solvents, see the appropriate LCSSs.

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.

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