British Abstracts: Pure chemistry and physiology. ser. A1943 |
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... diazotisation techniques have historically been batch or semi- batch but , recently , continuous plants for diazotisation in HF have been commissioned and further plants are under construction . The world market for fluoroaromatics made ...
... diazotisation techniques have historically been batch or semi- batch but , recently , continuous plants for diazotisation in HF have been commissioned and further plants are under construction . The world market for fluoroaromatics made ...
Trang 51
... Diazotisation Diazotisation, the first stage of azo dye and pigment synthesis, involves the treatment of a carbocyclic or heterocyclic, primary with aromatic nitrous amine acid to (ArNH form ), a diazonium which may be salt (ArN ...
... Diazotisation Diazotisation, the first stage of azo dye and pigment synthesis, involves the treatment of a carbocyclic or heterocyclic, primary with aromatic nitrous amine acid to (ArNH form ), a diazonium which may be salt (ArN ...
Trang 251
... diazotisation is not directly stopped ; he allows the colour to develop in acid medium ; the diazotisation continues and that with increased intensity because zinc salts are still present , which notably accelerate the diazotisation1 ...
... diazotisation is not directly stopped ; he allows the colour to develop in acid medium ; the diazotisation continues and that with increased intensity because zinc salts are still present , which notably accelerate the diazotisation1 ...
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absorption absorption spectra Acad acetate acid AcOH activity adsorption alkali Amer Anal analysis ation atoms boiling calc catalyst cellulose CHCI Chem chemical chloride CHPh CO₂ CO₂H coeff colour compounds Compt conc concn const containing converted corr cryst crystals curves decomp decreases derivatives described determined diazotised dioxan discussed effect electrolytes electron energy equilibrium ester ether EtOH formation formed Geol gives H₂ H₂O H₂SO heat hydrochloride hydrogen hydrolysed increases ionisation ions isomerised ketone lattice liquid measurements MeOH metal method methyl minerals mixtures NaOH obtained oxidation oxidised oxime particles phenols PhOH Physical Rev picrate polarisation polymerisation pptd pptn prep presence pressure reaction reagent reduced rend room temp salts semicarbazone solubility solution solvent spectra spectrum structure substances surface theory thermal titration vals vapour X-ray yield