cyanamiden.

Brit.

/sʌɪˈanəmʌɪd/, U.S.

/saɪˈænəməd/,

/saɪˈænəmaɪd/

Etymology: < cyan- comb. form 2.

Chemistry.

The amide of cyanogen CN₂H₂, a white crystalline body; also, a salt of this compound, in which one or both of the hydrogen atoms are replaced by another element or radical; spec. = calcium cyanamide (CaCn₂), used as a fertilizer and as a source of other nitrogen compounds. cyanamide process, the production of calcium cyanamide by the reaction between calcium carbide (CaC₂) and nitrogen at a high temperature.

ΘΚΠ

the world > matter > chemistry > organic chemistry > amides > [noun] > others

tartaric amide1789

cyanamide1838

sodamide1838

furfuramide1845

opiammone1845

formamide1852

param1866

tartranil1868

terephthalamide1868

sulphonamide1881

acrylamide1893

caprolactam1944

lysergic acid1952

thioTEPA1953

lipoamide1960

the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > industrial processes > others

Solvay (or Solvay's) process1879

contact process1903

thermite process1905

cyanamide process1922

Purex1951

1838 T. Thomson Chem. Org. Bodies 781 If we sprinkle ammonia on crystallized chloride of cyanogen, and heat gently, it loses its crystalline aspect, and is reduced to a white powder..This substance is cyanamide.

1897 Jrnl. Chem. Soc. 71 i. 460 Among the products of the change..we get sodium cyanide and sodium cyanamide, C(NNa)₂.

1914 J. Knox Fixation Atmosph. Nitrogen 88 The metallic cyanamides are derivatives of cyanamide, H₂CN₂.

1922 J. R. Partington & L. H. Parker Nitrogen Industry 188 The second important method of nitrogen fixation—viz., the cyanamide process.

1926 J. F. Crowley in E. Fyleman tr. Waeser's Atmosph. Nitr. Industry I. p. xiv Cyanamide has been found to be a useful fertiliser for particular soils.

1965 P. A. S. Smith Chem. Open-chain Org. Nitrogen Compounds I. vi. 251 Substituted cyanamides are for the most part named by simply adding the name of the substituent, as ‘methylcyanamide’.

1965 P. A. S. Smith Chem. Open-chain Org. Nitrogen Compounds I. vi. 253 Heavy metal cyanamides, however, have solubilities similar to sulfides and acetylides.

This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022).

单词	cyanamide
释义	cyanamiden. Brit. /sʌɪˈanəmʌɪd/, U.S. /saɪˈænəməd/, /saɪˈænəmaɪd/ Etymology: < cyan- comb. form 2. Chemistry. The amide of cyanogen CN₂H₂, a white crystalline body; also, a salt of this compound, in which one or both of the hydrogen atoms are replaced by another element or radical; spec. = calcium cyanamide (CaCn₂), used as a fertilizer and as a source of other nitrogen compounds. cyanamide process, the production of calcium cyanamide by the reaction between calcium carbide (CaC₂) and nitrogen at a high temperature. ΘΚΠ the world > matter > chemistry > organic chemistry > amides > [noun] > others tartaric amide1789 cyanamide1838 sodamide1838 furfuramide1845 opiammone1845 formamide1852 param1866 tartranil1868 terephthalamide1868 sulphonamide1881 acrylamide1893 caprolactam1944 lysergic acid1952 thioTEPA1953 lipoamide1960 the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > industrial processes > others Solvay (or Solvay's) process1879 contact process1903 thermite process1905 cyanamide process1922 Purex1951 1838 T. Thomson Chem. Org. Bodies 781 If we sprinkle ammonia on crystallized chloride of cyanogen, and heat gently, it loses its crystalline aspect, and is reduced to a white powder..This substance is cyanamide. 1897 Jrnl. Chem. Soc. 71 i. 460 Among the products of the change..we get sodium cyanide and sodium cyanamide, C(NNa)₂. 1914 J. Knox Fixation Atmosph. Nitrogen 88 The metallic cyanamides are derivatives of cyanamide, H₂CN₂. 1922 J. R. Partington & L. H. Parker Nitrogen Industry 188 The second important method of nitrogen fixation—viz., the cyanamide process. 1926 J. F. Crowley in E. Fyleman tr. Waeser's Atmosph. Nitr. Industry I. p. xiv Cyanamide has been found to be a useful fertiliser for particular soils. 1965 P. A. S. Smith Chem. Open-chain Org. Nitrogen Compounds I. vi. 251 Substituted cyanamides are for the most part named by simply adding the name of the substituent, as ‘methylcyanamide’. 1965 P. A. S. Smith Chem. Open-chain Org. Nitrogen Compounds I. vi. 253 Heavy metal cyanamides, however, have solubilities similar to sulfides and acetylides. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022). < n.1838
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