British Abstracts: Pure chemistry and physiology. ser. A1940 |
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... extraction apparatus are discussed ; the preferred form has a filter - plate in place of a siphon and is fitted with a two - way tap immediately below the extraction chamber to facilitate the taking of samples of the extract during ...
... extraction apparatus are discussed ; the preferred form has a filter - plate in place of a siphon and is fitted with a two - way tap immediately below the extraction chamber to facilitate the taking of samples of the extract during ...
Trang 99
... extract to dryness , and extraction of the residue with light petroleum gives gratiolon ( I ) , C30H48O3 , m.p. 311-312 ° ( block ) , [ a ] + 5 · 7 ° in CH , N . ( I ) contains CO , H since it is converted by CH , N , in Et , O into the ...
... extract to dryness , and extraction of the residue with light petroleum gives gratiolon ( I ) , C30H48O3 , m.p. 311-312 ° ( block ) , [ a ] + 5 · 7 ° in CH , N . ( I ) contains CO , H since it is converted by CH , N , in Et , O into the ...
Trang 109
... extract to dryness , and extraction of the residue with light petroleum gives gratiolon ( I ) , C30H4803 , m.p. 311-312 ° ( block ) , [ a ] + 5.7 ° in CH , N . ( I ) contains CO , H since it is converted by CH2N2 in Et2O into the Me ...
... extract to dryness , and extraction of the residue with light petroleum gives gratiolon ( I ) , C30H4803 , m.p. 311-312 ° ( block ) , [ a ] + 5.7 ° in CH , N . ( I ) contains CO , H since it is converted by CH2N2 in Et2O into the Me ...
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EXPERIMENTAL PHYSIOLOGY | |
1940 | 1 |
CHEMISTRY AND RELATED SUBJECTS | |
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absorption absorption spectra Acad acid activation energy activity adsorbed alkali alloys Amer Anal analysis approx ation atoms Atti X Congr bands calc catalyst CCl4 Chem chemical Chim chloride CO₂ coeff colloidal compounds Compt concn const crystals curves decomp decreases described determined deuterons diffusion discussed dissociation effect electrolytes electron emission energy equation equilibrium EtOH Faraday Soc ferromagnetic film formation gases H₂ H₂O heat hydrogen hydrolysis increases intensity ionisation ions isotopes kg.-cal lattice layer liquid magnetic Me.v measured meson mesotrons metals method mixtures N₂ neutrons obtained oxidation paramagnetic particles phase Phys Physical Rev polarisation potential pptd pressure Proc protons Raman reaction rend Russ salts SiO2 solid solid solution solubility solutions solvent spectra spectrum structure surface temp theory thermal titration Trans vals vapour velocity viscosity X-ray