phosphamn.

Brit.

/ˈfɒsfam/, U.S.

/ˈfɑsˌfæm/

Origin: A borrowing from French. Etymon: French phospham.

Etymology: < French phospham (C. Gerhardt 1846, in Ann. de chim. et de physique 18 197) < phospho- phospho- comb. form + -am (in post-classical Latin ammonia ammonia n.). Compare German Phospham (1846).

Chemistry.

A white to reddish polymeric solid, (NPNH)_n, first obtained by the reaction of phosphoric acid with ammonia.

ΚΠ

1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xii. 440 The residue..whose composition is expressed by the formula PHN²..Gerhardt calls Phospham.

1877 H. Watts Dict. Chem. IV. 497 Phospham..is a bulky powder, white if moisture has been carefully excluded during its preparation, reddish in the contrary case.

1962 Chem. Rev. 62 266/2 Phosphams containing phenyl groups have been prepared by the thermal decomposition of anilinophosphazenes.

1994 Eos 75 xliv. Suppl. 662/2 At ambient conditions the phosphorus nitride amide phospham (PNNH) has a cristobalite-like structure.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phospham
释义	phosphamn. Brit. /ˈfɒsfam/, U.S. /ˈfɑsˌfæm/ Origin: A borrowing from French. Etymon: French phospham. Etymology: < French phospham (C. Gerhardt 1846, in Ann. de chim. et de physique 18 197) < phospho- phospho- comb. form + -am (in post-classical Latin ammonia ammonia n.). Compare German Phospham (1846). Chemistry. A white to reddish polymeric solid, (NPNH)_n, first obtained by the reaction of phosphoric acid with ammonia. ΚΠ 1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xii. 440 The residue..whose composition is expressed by the formula PHN²..Gerhardt calls Phospham. 1877 H. Watts Dict. Chem. IV. 497 Phospham..is a bulky powder, white if moisture has been carefully excluded during its preparation, reddish in the contrary case. 1962 Chem. Rev. 62 266/2 Phosphams containing phenyl groups have been prepared by the thermal decomposition of anilinophosphazenes. 1994 Eos 75 xliv. Suppl. 662/2 At ambient conditions the phosphorus nitride amide phospham (PNNH) has a cristobalite-like structure. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1849
随便看	disjunctive proposition disjunctive syllogism disjunctively disjunctives disjunctly disjuncts disjuncture disjunctures disjune disjunes disjungible disjust disjustice disk disk jockey disked disken diskette diskette drive diskettes diskindness disking diskingdom disklike diskliker