Chloroform formula weight

Formula weight 517.66. Small red crystals, which become anhydrous on heating to 110 °C. Almost insoluble in cold water, but somewhat soluble in warm HgO. Completely insoluble in benzene, chloroform and ether very soluble in aqueous and absolute ethyl alcohol, methanol, ethyl acetate and pyridine very readily soluble in acetone. 

Formula weight 487.33 m.p. 157°C. Depending on size, orange to reddish black crystals. Soluble in pyridine, alcohol, chloroform, acetone almost insoluble in benzene and water insoluble in ether and naphtha. Not sensitive to dilute hydrochloric acid. 

Formula weight 411.33. Red-orange, massive, somewhat light-sensitive crystals. M.p. approximately 160°C (decomp.). Can be stored in vacuum or under Ng in the dark. Readily soluble in pyridine soluble in chloroform, alcohol and acetone less soluble in water insoluble in ether, benzene and petroleum ether. 

Formula weight 379.90. Light-green needles or dark-green octa-hedra, which sublime at red heat as a red vapor. M.p. 567°, b.p. 618° d l 4.73-4.97. The aqueous solution gives a strongly acidic reaction because of hydrolysis. Soluble in ethyl acetate and benzoate insoluble in ether, chloroform and benzene. 

Calculate the formula weight of each of the following to three significant figures, using a table of atomic weights (AW) a. chloroform, CHCI3 b. iron(III) sulfate,... 

Common Name Trichloromethane Synonym chloroform, trichloromethaneq Chemical Name trichloromethane CAS Registry No 67-66-3 Molecular Formula CHC13 Molecular Weight 119.378 Melting Point (°C) ... 

Cu(N03)2 SHgO and PPhg in alkanolic solution 86) or by recrystallization of CuN03(PPh3)3 from methanol 177). The and vibrations of the nitrate group in the infrared spectrum of the complex show a separation of ca. 200 cm" characteristic of bidentate coordination its molecular weight in chloroform has been reported as 639 (formula wt., 649) 177). Its crystal structure has also been determined 243, 244). 

Fusion of triphenylphosphine or arsine with CuCN results in the formation of CuCN(ZPh3)2 (Z = P, As). Their infrared spectra indicate that, although weak cyano bridging occurs in their crystals, they are monomeric in 2-aminoethanol solution (78). Compound CuCN(PPh3)2 has an apparent molecular weight of 685 (formula wt. 611) in chloroform solution (294). 

Xmai = 232 m/j e = 16,000) obtained by dehydration with a crystal of trichloroacetic acid added to a solution of the compound C13H22O8 in chloroform. The results provided by UV, IR, and NMR spectra, as well as the molecular weight (208) of the ketone, lead us to propose the process and formulas shown in reaction (20). 

Problem 2.6 When 7.36 mg of methyl chloride was heated in a bomb with sodium peroxide, the chloride ion liberated yielded 20.68 mg of silver chloride, (a) What percenfageof chlorine is indicated by this analysis (b) What percentage of chlorine would be expected from a compound of formula CH3CI (c) What weight of silver chloride would you expect from 7.36 mg of methylene chloride (d) Of chloroform (e) Of carbon tetrachloride ... 

Chemical and Physical Properties Trichlorfon is an organophosphate compound, which has an empirical formula of C4HgCl304P and a molecular weight of 257.44. It is a racemic mixture of two isomers. Trichlorfon is a pale clear, white or yellow crystalline powder, melting point 75-84°C, boiling point 100°C, vapor pressure 7.8mmHg at 20°C, and is stable at normal temperatures and pressure. At higher temperatures and pH less than 5.5, trichlorfon decomposes to form dichlorvos (0,0-dimethyl-0-(2,2-dichlorovinyl) phosphate, DDVP). It is readily soluble in chloroform and methylene chloride, and less soluble in water, benzene, and diethyl ether. 

Nitro-glycerine has a sweet taste, and causes great depression and vertigo. It is soluble in ether, chloroform, benzene, glacial acetic acid, and nitro-benzene, in 1.75 part of methylated spirit, very nearly insoluble in water, and practically insoluble in carbon bisulphide. Its formula is C 3 H 5 (NO 3 ) 3, and molecular weight 227. When pure, it may be kept any length of time without decomposition. Berthelot kept a... 

The authors [226] constructed the dependence x MM) in double logarithmic coordinates for PS-Cgg solutions in two solvents— tetrahydro-fliran and chloroform. These dependences proved to be linear, that allows to estimate the exponent for the studied polymers, which proved to be equal to -0.06 0.07 for tetrahydrofuran and 0.2 0.2—for chloroform. However, this construction causes a questions number. Firstly, in the well-known Mark-Kuhn-Houwink equation (the formula (1)) coefficientdepends on both exponent and macromolecular repeated link molecular weight m. One from the relationship between K, and variants is the Eq. (2). The plots v MM) in double logarithmic coordinates construction and subsequent the exponent determination from their slope assumes the condition K =const, that is not far from obvious. 

Pentachloroethane ipen-t9- klor- e- than n. CHCI2CCI. Non-flammable solvent. Bp, 161°C vp, 5mmHg per 20°C Sp gr, 1.685. CAS registry number 76-01-7. Additional names Pentalin. Molecular formula C2HCI5. Molecular weight 202.30. Percent composition C 11.87%, H 0.50%, and Cl 87.62%. Line formula CCI3CHCI2. Literature references Toxicity data Bar-soum GS, Saad K (1934). Quart J Pharm Pharmacol 7 205. Properties liquid chloroform-like odor, 1.6712 bp... 

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