Chemical News and Journal of Physical Science, Tom 105Chemical news office., 1912 |
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Strona 1
... mixture of boron chloride with a large excess of hydrogen in a glass or copper vessel . The boron is thrown off in fine powder on to the walls of the vessel or agglomerates on the ends of the electrodes , where it grows in form of small ...
... mixture of boron chloride with a large excess of hydrogen in a glass or copper vessel . The boron is thrown off in fine powder on to the walls of the vessel or agglomerates on the ends of the electrodes , where it grows in form of small ...
Strona 11
... mixture vaporises at constant tem- perature and pressure from an infinitely large quantity of the mixture of known composition . It is supposed that no change in the composition occurs in this process . 2. Heat absorbed when I grm . of ...
... mixture vaporises at constant tem- perature and pressure from an infinitely large quantity of the mixture of known composition . It is supposed that no change in the composition occurs in this process . 2. Heat absorbed when I grm . of ...
Strona 12
... mixture of glycocoll with four or five times its weight of glycerin is kept for some hours at 170 ° , most of the glycocoil is transformed into cycloglycylglycine . As an intermediate product the tetrapeptide triglycylglycine is formed ...
... mixture of glycocoll with four or five times its weight of glycerin is kept for some hours at 170 ° , most of the glycocoil is transformed into cycloglycylglycine . As an intermediate product the tetrapeptide triglycylglycine is formed ...
Strona 15
... mixture stand longer . Shaken in a stoppered flask with the iodine solu- tion , the precipitate is then dissolved very readily . A large excess of acetic acid is to be avoided , as it tends to make the result too low , which is also the ...
... mixture stand longer . Shaken in a stoppered flask with the iodine solu- tion , the precipitate is then dissolved very readily . A large excess of acetic acid is to be avoided , as it tends to make the result too low , which is also the ...
Strona 22
... mixture of camphorquinone and ethyl cyanoacetate , forms lustrous sulphur - yellow prisms , melting at 97 ° . The corresponding acid , C13H1503N , melts at 141-143 ° , and the methyl ester , C14H1703N , at 81 ° . Phenylcyano- C : C ( CN ) ...
... mixture of camphorquinone and ethyl cyanoacetate , forms lustrous sulphur - yellow prisms , melting at 97 ° . The corresponding acid , C13H1503N , melts at 141-143 ° , and the methyl ester , C14H1703N , at 81 ° . Phenylcyano- C : C ( CN ) ...
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