A Grammar of ChemistryS. G. Goodrich, 1825 - 240 σελίδες |
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Σελίδα 19
... prepared by dipping the common brimstone matches into a paste made by mixing two parts of white sugar with one part of chlorate ( oxymuriat ) of potash . The red French matches are of this kind , and answer the purpose completely . In ...
... prepared by dipping the common brimstone matches into a paste made by mixing two parts of white sugar with one part of chlorate ( oxymuriat ) of potash . The red French matches are of this kind , and answer the purpose completely . In ...
Σελίδα 29
... prepared in this way , remove the screen , and the powder flashes . Obs . In these experiments the caloric flows first from the hot ball to the nearest mirror , which reflects it in parallel rays to the other mirror , by which they are ...
... prepared in this way , remove the screen , and the powder flashes . Obs . In these experiments the caloric flows first from the hot ball to the nearest mirror , which reflects it in parallel rays to the other mirror , by which they are ...
Σελίδα 38
... prepared as follows . Exp . Take common oyster shells , and calcine them in a coal fire for an hour , then select the whitest , and purest parts , which are to be pounded and sifted . Mix three parts of this powder , with one part of ...
... prepared as follows . Exp . Take common oyster shells , and calcine them in a coal fire for an hour , then select the whitest , and purest parts , which are to be pounded and sifted . Mix three parts of this powder , with one part of ...
Σελίδα 47
... prepared . The crystal may be made to grow in length by laying it on its sides , and in breadth by placing it on its base , or setting it up . 68. CHEMICAL AFFINITY , like cohesive attraction , is effective CHEMICAL 47 AFFINITY .
... prepared . The crystal may be made to grow in length by laying it on its sides , and in breadth by placing it on its base , or setting it up . 68. CHEMICAL AFFINITY , like cohesive attraction , is effective CHEMICAL 47 AFFINITY .
Σελίδα 73
... preparation of it has been used in medicine in other respects it has not been applied to any useful purpose . OF ... Prepare a kind of spoon , made of a small piece of tin and a han- dle of wire . On the bowl of this , place a grain or ...
... preparation of it has been used in medicine in other respects it has not been applied to any useful purpose . OF ... Prepare a kind of spoon , made of a small piece of tin and a han- dle of wire . On the bowl of this , place a grain or ...
Συχνά εμφανιζόμενοι όροι και φράσεις
absorbs acetic acid affinity alcohol alkalies alloys alum alumine ammonia animal antimony arsenic arsenous acid atmosphere attraction barytes base bodies boiling bottle burning called caloric carbonic acid charcoal chemical chemical affinity colour combination combustion common salt composed compound contains converted copper cork crystals decomposed degree of heat dissolved distillation earth effect elastic fluids emit ether evaporation experiment exposed flame flask fused gallic acid galvanic gases glass tube gold grains hydrogen Illus inches iron light lime liquid magnesia malleable melted mercury mineral mixed mixture muriatic acid nitrate nitre nitric acid nitrogen nitrous obtained ounces oxide oxygen gas particles phosphorus piece plants plates platina powder produced properties proportion pure red heat red hot retort Salts formed silex silver small quantity soda solid soluble solution specific gravity substances sugar sulphate sulphuric acid temperature thermometer tion vegetable vessel wire zinc
Δημοφιλή αποσπάσματα
Σελίδα ii - District Clerk's Office. BE IT REMEMBERED, That on the seventh day of May, AD 1828, in the fifty-second year of the Independence of the UNITED STATES OF AMERICA, SG Goodrich, of the said District, has deposited in this office the...
Σελίδα 231 - Salts formed by the combination of any base with the acid of borax. c. Calcareous. A chemical term formerly applied to describe chalk, marble , and all other combinations of lime with carbonic acid.
Σελίδα 233 - Salts formed by the combination of any base with fluoric acid. Fluidity. A term applied to all liquid substances. Solids are converted to fluids by combining with a certain portion of caloric. Flux. A substance...
Σελίδα 232 - D. Decomposition. The separation of the constituent principles of compound bodies by chemical means. Deflagration. The vivid combustion that is produced whenever nitre, mixed with an inflammable substance, is exposed to a red heat. It may be attributed to the extrication of oxygen from the nitre, and its being transferred to the inflammable body ; as any of the nitiates or oxygenized muriates will produce the same effect.
Σελίδα 234 - The Smallest weight made use of by chemical writers. Twenty grains make a scruple ; 3 scruples a drachm ; 8 drachms, or 480 grains, make an ounce ; 12 ounces, or 5760 grains, a pound troy. The avoirdupois pound contains 7000 grains. Granulation. The operation of pouring a melted metal into water, in order to divide it into small particles for chemical purposes. Tin is thus granulated by the dyers before it is dissolved in the proper acid. Gravity, specific.
Σελίδα 99 - Hence ink stains degenerate into iron-moulds, and these last are immediately produced on an inked spot of linen when washed with soap, because the alkali of the soap abstracts the gallic acid, and leaves only an oxide of iron.
Σελίδα 30 - In air, similar currents are continually produced, and the vibratory motion observed over chimney pots, and slated roofs which have been heated by the sun, depends upon this circumstance: the warm air rises, and its refracting power being less than that of the circumambient...
Σελίδα 202 - When pieces of charcoal about an inch long and one-sixth of an inch in diameter were brought near each other (within the thirtieth or fortieth of an inch), a bright spark was produced, and more than half the volume of the charcoal became ignited to whiteness; and, by withdrawing the points from each other, a constant discharge took place through the heated air, in a space equal to at least four inches, producing a most brilliant ascending arch of light, broad and conical in form in the middle.
Σελίδα 233 - ... escape of a gaseous substance. Efflorescence. A term commonly applied to those saline crystals which become pulverulent on exposure to the air, in consequence of the loss of a part of the water of crystallization. Elasticity. A force in bodies, by which they endeavour to restore themselves to the posture from whence they were displaced by an external force. Elastic fluids. A name sometimes given to vapours and gases. Vapour is called an clastic fluid ; gas, a permanently elastic fluid.
Σελίδα 233 - Ethers. Volatile liquids formed by the distillation of some of the acids with alcohol. Evaporation. The conversion of fluids into vapor by heat. This appears to be nothing more than a gradual solution of the aqueous particles in atmospheric air, owing to the chemical attraction of The latter for water. Eudiometer. An instrument invented by Dr, Priestley for determining the purity of any given portion of atmospheric air.