Journal of the Chemical Society, Part 4The Society., 1949 |
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Results 1-3 of 83
Page 2673
... Measurements [ with J. A. D. EWART ] .- If S g.-mol./l . is the measured solubility of oxine in an aqueous buffer in which the hydrogen ion activity is aЯ + , then = = S = [ HOx ] + [ H2Ox + ] + [ 0x ̄ ] = [ HOx ] { 1 + αx + / K2 ′ + K2 ...
... Measurements [ with J. A. D. EWART ] .- If S g.-mol./l . is the measured solubility of oxine in an aqueous buffer in which the hydrogen ion activity is aЯ + , then = = S = [ HOx ] + [ H2Ox + ] + [ 0x ̄ ] = [ HOx ] { 1 + αx + / K2 ′ + K2 ...
Page 2674
... measurements . Optical absorptions were measured with a Beckman Model DU Spectrophotometer with a 5 · 001 - cm . silica cell . The slit widths varied according to the wave - length used but a maximum of 1 · 5 A. was used over the range ...
... measurements . Optical absorptions were measured with a Beckman Model DU Spectrophotometer with a 5 · 001 - cm . silica cell . The slit widths varied according to the wave - length used but a maximum of 1 · 5 A. was used over the range ...
Page 2864
... measurements . In most cases stopcocks and joints were carefully lubricated with a silicone grease , the fluorocarbon lubricants available being too thin for satisfactory working . A mixture of a fluorocarbon with the silicone grease ...
... measurements . In most cases stopcocks and joints were carefully lubricated with a silicone grease , the fluorocarbon lubricants available being too thin for satisfactory working . A mixture of a fluorocarbon with the silicone grease ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred sulphate sulphone sulphuric acid synthesis Table tube values washed yield