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Tributylphosphine

Tributylphosphine
Tributylphosphine structure
CAS No.
998-40-3
Chemical Name:
Tributylphosphine
Synonyms
PBU3;TBUP;P(n-Bu)3;cytop 340;NSC 91700;(n-C4H9)3P;CYTOP(R) 340;HISHICOLIN P-4;Tributylfosfin;Tibutylphosphine
CBNumber:
CB1374003
Molecular Formula:
C12H27P
Formula Weight:
202.32
MOL File:
998-40-3.mol

Tributylphosphine Properties

Melting point:
-65 °C
Boiling point:
150 °C50 mm Hg(lit.)
Density 
0.81 g/mL at 25 °C(lit.)
vapor density 
9 (vs air)
refractive index 
n20/D 1.462(lit.)
Flash point:
99 °F
storage temp. 
2-8°C
form 
liquid
color 
Clear colorless to pale yellow
Specific Gravity
0.820 (20/4℃)
Water Solubility 
insoluble
Sensitive 
Moisture Sensitive/Air Sensitive
BRN 
1738261
Stability:
Stable, but pyrophoric - spontaneously inflammable in air. Incompatible with oxidizing agents. Moisture sensitive.
InChIKey
TUQOTMZNTHZOKS-UHFFFAOYSA-N
CAS DataBase Reference
998-40-3(CAS DataBase Reference)
FDA UNII
0O52FJR7WN
NIST Chemistry Reference
Phosphine, tributyl-(998-40-3)
EPA Substance Registry System
Phosphine, tributyl- (998-40-3)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS09,GHS02,GHS05,GHS07,GHS08
Signal word  Danger
Hazard statements  H226-H250-H302+H312-H314-H302-H312-H335-H360D-H252-H318-H401-H411
Precautionary statements  P222-P231-P280-P305+P351+P338-P310-P422-P201-P303+P361+P353-P304+P340+P310-P308+P313-P210-P302+P334-P370+P378-P405-P422a-P501a
Hazard Codes  Xi,F,C,T
Risk Statements  36/38-34-21/22-17-11-37-36/37/38-61
Safety Statements  41-36/37/39-26-16-45-43-17-5-53
RIDADR  UN 3254 4.2/PG 1
WGK Germany  3
RTECS  SZ3270000
10-13-23
Autoignition Temperature 392 °F
TSCA  Yes
HazardClass  4.2
PackingGroup  I
HS Code  29319090
NFPA 704
1
0 0

Tributylphosphine price More Price(24)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 247049 Tributylphosphine mixture of isomers, 97% 998-40-3 100g $46.4 2021-03-22 Buy
Sigma-Aldrich T7567 Tributylphosphine solution 200?mM (in N-methyl-2-pyrrolidinone), liquid 998-40-3 10 vials $88 2021-03-22 Buy
Sigma-Aldrich 247049 Tributylphosphine mixture of isomers, 97% 998-40-3 500g $167 2021-03-22 Buy
Alfa Aesar 014114 Tri-n-butylphosphine 94% 998-40-3 50g $31.1 2020-06-24 Buy
Alfa Aesar 014114 Tri-n-butylphosphine 94% 998-40-3 250g $133 2020-06-24 Buy

Tributylphosphine Chemical Properties,Uses,Production

Chemical Properties

Clear liquid

Uses

1,4-addition catalyst; used with disulfides for the thioetherification of alcohols; acylation catalyst; used to prepare active esters.

Uses

suzuki reaction

Uses

Tributylphosphine is usually used as catalyst for Domino reactions of activated conjugated dienes with β,γ-unsaturated-α-ketoesters, [3+2]-Cycloadditions,Umpolung addition reactions,Reductive carbonylation, Allylation reactions.

Synthesis Reference(s)

Tetrahedron Letters, 25, p. 2493, 1984 DOI: 10.1016/S0040-4039(01)81213-2

General Description

Tributylphosphane is a colorless to yellowish liquid with a strong garlic-like odor. Tributylphosphane is insoluble in water. Tributylphosphane is liable to heat and ignite spontaneously in air. If involved in a fire phosphine gas, a highly flammable and toxic gas, will evolve. Tributylphosphane is irritating to mucous membranes.

Air & Water Reactions

Highly flammable. May ignite on contact with air or moist air. Insoluble in water.

Reactivity Profile

Organophosphates, such as Tributylphosphane, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Health Hazard

Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution.

Fire Hazard

Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.

Purification Methods

Fractionally distil it under reduced pressure in an inert atmosphere (N2) through an 8inch gauze-packed column (b 110-111o/10mm) and redistil it in a vacuum, then seal it in thin glass ampoules. It is easily oxidised by air to tri-n-butylphosphine oxide, b 293-296o/745mm. It has a characteristic odour, it is soluble in EtOH, Et2O, and *C6H6 but is insoluble in H2O and less easily oxidised by air than the lower molecular weight phosphines. It forms complexes, e.g. with CS2 (1:1) m 65.5o (from EtOH). [Davies & Jones J Chem Soc 33 1929, Chernick & Skinner J Chem Soc 1401 1956, Beilstein 4 IV 3436.]

Tributylphosphine Preparation Products And Raw materials

Raw materials

Preparation Products


Tributylphosphine Suppliers

Global( 300)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
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View Lastest Price from Tributylphosphine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-09-14 Tributylphosphine
998-40-3
US $3611.00 / Kg/Bag 25Kg/Bag 98% 20T Baoji Guokang Healthchem co.,ltd
2021-07-13 Tributylphosphine
998-40-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 Tributylphosphine
998-40-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Tributylphosphine Spectrum


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