White precipitate

White precipitate
Precipitate Pre*cip"i*tate, n. [NL. praecipitatum: cf. F. pr['e]cipit['e].] (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold. The precipitate may fall to the bottom (whence the name), may be diffused through the solution, or may float at or near the surface. [1913 Webster]

2. atmospheric moisture condensed as rain or snow, etc.; same as {precipitation[5]}. [PJC]

{Red precipitate} (Old. Chem), mercuric oxide ({HgO}) a heavy red crystalline powder obtained by heating mercuric nitrate, or by heating mercury in the air. Prepared in the latter manner, it was the {precipitate per se} of the alchemists.

{White precipitate} (Old Chem.) (a) A heavy white amorphous powder ({NH2.HgCl}) obtained by adding ammonia to a solution of mercuric chloride or corrosive sublimate; -- formerly called also {infusible white precipitate}, and now {amido-mercuric chloride}. (b) A white crystalline substance obtained by adding a solution of corrosive sublimate to a solution of sal ammoniac (ammonium chloride); -- formerly called also {fusible white precipitate}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • White precipitate — White White (hw[imac]t), a. [Compar. {Whiter} (hw[imac]t [ e]r); superl. {Whitest}.] [OE. whit, AS. hw[imac]t; akin to OFries. and OS. hw[=i]t, D. wit, G. weiss, OHG. w[=i]z, hw[=i]z, Icel. hv[=i]tr, Sw. hvit, Dan. hvid, Goth. hweits, Lith.… …   The Collaborative International Dictionary of English

  • white precipitate — noun : either of two mercury ammonia compounds: a. : ammoniated mercury b. : a crystalline compound Hg(NH3)2Cl2 usually obtained by adding a solution of mercuric chloride to a hot solution of ammonia and ammonium chloride called also fusible… …   Useful english dictionary

  • white precipitate — baltasis precipitatas statusas T sritis chemija formulė Hg(NH₃)₂Cl₂ atitikmenys: angl. white precipitate rus. белый преципитат …   Chemijos terminų aiškinamasis žodynas

  • fusible white precipitate — Precipitate Pre*cip i*tate, n. [NL. praecipitatum: cf. F. pr[ e]cipit[ e].] (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold.… …   The Collaborative International Dictionary of English

  • infusible white precipitate — Precipitate Pre*cip i*tate, n. [NL. praecipitatum: cf. F. pr[ e]cipit[ e].] (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold.… …   The Collaborative International Dictionary of English

  • fusible white precipitate — noun see white precipitate …   Useful english dictionary

  • Precipitate — Pre*cip i*tate, n. [NL. praecipitatum: cf. F. pr[ e]cipit[ e].] (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold. The… …   The Collaborative International Dictionary of English

  • precipitate per se — Precipitate Pre*cip i*tate, n. [NL. praecipitatum: cf. F. pr[ e]cipit[ e].] (Chem.) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold.… …   The Collaborative International Dictionary of English

  • White — (hw[imac]t), a. [Compar. {Whiter} (hw[imac]t [ e]r); superl. {Whitest}.] [OE. whit, AS. hw[imac]t; akin to OFries. and OS. hw[=i]t, D. wit, G. weiss, OHG. w[=i]z, hw[=i]z, Icel. hv[=i]tr, Sw. hvit, Dan. hvid, Goth. hweits, Lith. szveisti, to make …   The Collaborative International Dictionary of English

  • White alder — White White (hw[imac]t), a. [Compar. {Whiter} (hw[imac]t [ e]r); superl. {Whitest}.] [OE. whit, AS. hw[imac]t; akin to OFries. and OS. hw[=i]t, D. wit, G. weiss, OHG. w[=i]z, hw[=i]z, Icel. hv[=i]tr, Sw. hvit, Dan. hvid, Goth. hweits, Lith.… …   The Collaborative International Dictionary of English

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