Detail of "519-73-3"

MSDS Download
CAS Number:
519-73-3
Name:
Benzene,1,1',1''-methylidynetris-
Superlist Name:
Triphenylmethane
Molecular Structure:
Formula:
C₁₉H₁₆
Molecular Weight:
244.33
Synonyms:
Methane,triphenyl- (8CI);1,1',1''-Methylidynetris[benzene];NSC 4049;Triphenylmethane;Tritane;
EINECS:
208-275-0
Density:
1.014g/cm³
Melting Point:
92-94 °C(lit.)
Boiling Point:
360 °C at 760 mmHg
Flash Point:
160.3 °C
Solubility:
Insoluble in water
Appearance:
faint yellow powder
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
22-24/25-36-26 Details

Display：

Please post your buying leads,so that our qualified suppliers will soon contact you!
*Required Fields

Bi- and trifunctional organolithium initiators and their use: Bi- and trifunctional organolithium initiators and their use. Fontanille, Michel; Guyot, Patrick; Sigwalt, Pierre (Agence Nationale de Valorisation de la Recherche; Societe Chimique des Charbonnages, Fr.). Ger. Offen. DE 2726980 29 Dec 1977, 20 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07F001-02. PRIORITY: FR 76-18453 17 Jun 1976. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) Section cross-reference(s): 25, 29 A tri- (I [65740-07-0]) and a difunctional (II [65740-08-1]) organolithium compd. were prepd. and used to initiate the polymn. of isoprene. Thus, Ph3CH [519-73-3] was alkylated with MeI [74-88-4] in the presence of BuLi and trimethylethylenediamine to give Ph3CMe [5271-39-6], which was acetylated under Friedel-Crafts conditions to give 1,1,1-tris(4-acetylphenyl)ethane (III) [65740-05-8]. Wittig reaction of III gave 1,1,1-tris(4-isopropenylphenyl)ethane [65740-06-9], which by addn. of tert-BuLi [594-19-4] gave I. Polymn. of isoprene with I in hexane gave a star polyisoprene [9003-31-0] with microstructure 70% cis, 24% trans, and 6% 3,4.

Effect of liquid composition on the slurry Fischer-Tropsch synthesis: Effect of liquid composition on the slurry Fischer-Tropsch synthesis. 1. Rate of reaction. Satterfield, Charles N.; Stenger, Harvey G., Jr. (Dep. Chem. Eng., Massachusetts Inst. Technol., Cambridge, MA 02139, USA). Ind. Eng. Chem. Process Des. Dev., 24(2), 407-11 (English) 1985. CODEN: IEPDAW. ISSN: 0196-4305. DOCUMENT TYPE: Journal CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 22, 67 In slurry Fischer-Tropsch synthesis with a reduced fused magnetite catalyst, the rate of reaction in the presence of phenanthrene (I) [85-01-8] is nearly twice that obsd. in the presence of octacosane (II) [630-02-4], even though the solubilities of H and CO are moderately less in I. The rate in the presence of Ph3CH [519-73-3] is about the same as in II. In the presence of a perfluoropolyether, the rate of reaction is markedly reduced, even though H and CO solubilities are much higher than in hydrocarbons. This is attributed to substantial mass-transfer resistances through an encapsulating hydrocarbon layer around the catalyst particles. The effect of the nature of inert liqs. on several other reactions is also discussed.