The British encyclopedia, or, Dictionary of arts and sciences, Volumen5 |
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... heat of the blow - pipe ; but when mixed with borax , gives to it a yellowish red co- lour . Its solution in acids is of a green co- lour . It occurs generally with kupfer- nickel , or with certain cobalt ores . It is also contained in ...
... heat of the blow - pipe ; but when mixed with borax , gives to it a yellowish red co- lour . Its solution in acids is of a green co- lour . It occurs generally with kupfer- nickel , or with certain cobalt ores . It is also contained in ...
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William Nicholson. alone ; and the only difficulty experienced is the intensity of the heat required to fuse the ... heating together phosphoric acid and nickel with a little charcoal . The nickel increases in weight one - fifth . The ...
William Nicholson. alone ; and the only difficulty experienced is the intensity of the heat required to fuse the ... heating together phosphoric acid and nickel with a little charcoal . The nickel increases in weight one - fifth . The ...
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... heat , and yield at first oxygen gas . There are twelve nitrates , of which the most important is the nitrate of potash , or nitre : this salt , known also by the name of salt - petre , is produced natu- rally in considerable quantities ...
... heat , and yield at first oxygen gas . There are twelve nitrates , of which the most important is the nitrate of potash , or nitre : this salt , known also by the name of salt - petre , is produced natu- rally in considerable quantities ...
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... heat it melts , and congeals by cooling into an opaque mass , which has been called mineral crystal . Whenever it melts , it begins to disengage oxygen ; and , by keeping it in a red heat , about the third of its weight of that gas may ...
... heat it melts , and congeals by cooling into an opaque mass , which has been called mineral crystal . Whenever it melts , it begins to disengage oxygen ; and , by keeping it in a red heat , about the third of its weight of that gas may ...
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... heat , the sulphur and potash form a sulphuret , which is com- bustible at a lower heat probably than even sulphur . Sulphurated hydrogen gas , azotic gas , and perhaps also sulphurous acid gas , are disengaged almost instantaneously ...
... heat , the sulphur and potash form a sulphuret , which is com- bustible at a lower heat probably than even sulphur . Sulphurated hydrogen gas , azotic gas , and perhaps also sulphurous acid gas , are disengaged almost instantaneously ...
Términos y frases comunes
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