n-Butyllithium

n-Butyllithium price More Price(31)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	186171	n-Butyllithium solution 1.6M in hexanes	109-72-8	8l	$702	2017-11-08	Buy
Sigma-Aldrich	186171	n-Butyllithium solution 1.6M in hexanes	109-72-8	8l-kl	$723	2017-11-08	Buy
Alfa Aesar	L13559	n-Butyllithium, 1.6M in hexane, packaged in resealable septum cap bottle	109-72-8	100ml	$72	2017-11-08	Buy
Alfa Aesar	L13559	n-Butyllithium, 1.6M in hexane, packaged in resealable septum cap bottle	109-72-8	500ml	$136	2017-11-08	Buy
Strem Chemicals	93-0301	n-Butyllithium, 15% in hexanes (1.6M)	109-72-8	0.25mole	$98	2017-11-27	Buy

n-Butyllithium Chemical Properties,Uses,Production

Chemical Properties

Colorless or slightly yellow transparent liquid at room temperature, also comes in powder form. Boiling point is 80-90℃（0.013Pa）, relative density is 0.68-0.70. Soluble in many organic solvents. Stable in room temperature, lithium hydride removable by heating. Disintegrates in water, soluble in hydrocarbons and ethers, forms complex compounds with ethers, amines, and sulfides, and uses N-hexane as a solvent.

Usage

N-Butyllithium solution is mostly used as a pharmaceutical intermediate to synthesize anionic polymerization initiator. It is also used to produce rubber (such as integral rubber SIBR, which is the most versatile diene rubber to date), fragrance, liquid crystal materials, and other industries. It is a chemical product intermediate, linking agent, alkylating agent, and polymerization catalyst. As a catalyst, N-Butyllithium is widely used as a pharmaceutical intermediate, liquid crystal monomer, and pesticide production catalyst. It is also widely used in organic syntheses, especially in growing carbon chains, and it is a staple laboratory product in reactions such as: 1) Metallization reaction: R-H + n-Butyl-Li → R-Li + Butane, in which the produced lithium alkyl can react with many substances. 2) Direct metallization: the aromatic compound that connects the substitute reacts with N-Butyllithium, and lithium metal can be attached to the aromatic compound. 3) Nucleophilic addition and substitution reaction. 4) Halogen-metal replacement.

Identifying Procedures

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.

Warnings and precautions

1) N-Butyllithium is extremely combustible when in contact with air; when measuring, the needle of the injector will eject sparks.
2) The entire process must be protected by argon for safety precaution.
3) If N-Butyllithium catches fire, it must be extinguished with sand, which must be placed within arm’s reach at all times.
When preparing and using N-Butyllithium, do not operate alone in case of emergency

Category

Spontaneously combustible when in contact with water

Explosivity characteristics

May explode in combination with phenylethylene

Flammability characertistics

Combusts in air at a concentration abover 20%; combusts upon contact with water and carbon dioxide; flammable when in contact with heat and open flame.

Storage

Store in ventilated, cool and dry spaces; must be waterproof and carbon dioxide-proof.

Extinguisher

Dry powder

Chemical Properties

clear yellow solution

n-Butyllithium Preparation Products And Raw materials

Raw materials

Preparation Products

n-Butyllithium Suppliers

Supplier	Tel	Fax	Email	Country	ProdList	Advantage
Beijing Cooperate Pharmaceutical Co.,Ltd.	+86-10-60279497 +86(0)15646567669	+86-10-60279497	sales01@cooperate-pharm.com	CHINA	1112	55
Henan Tianfu Chemical Co.,Ltd.	0371-55170693	0371-55170693	info@tianfuchem.com	CHINA	20810	55
Mainchem Co., Ltd.	0592-6210733	0592-6210733	sales@mainchem.com	CHINA	3270	55
Hefei TNJ Chemical Industry Co.,Ltd.	86-0551-65418684 18949823763	86-0551-65418684	info@tnjchem.com	China	1410	55
Meryer (Shanghai) Chemical Technology Co., Ltd.	+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)	+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing)	sh@meryer.com	China	40398	62
Thermo Fisher Scientific	800-810-5118	+86-10-84193589	cnchemical@thermofisher.com	China	17574	75
Xunteng International Trading Co.,Limited	+00852-21527311 ; +86-07945259813; QQ:2332666069	+00852-30121311; +86-07945259813	xuntengchem@hotmail.com;sales@xuntengchem.com	China Hong Kong	888	55
SHANGHAI BANGCHENG CHEMICAL Co.,Ltd.	021-52696680	021-69106780	bangchem1@163.com	China	8323	60
Adamas Reagent, Ltd.	400-600-9262		bxy@titansci.com	China	14018	59
Lianyungang Yilong Chemical Co., Ltd.	18751413560、18360586801	0518-88109512	sales@yilong-chem.com	China	22	60

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