英语词汇“pentahydrate”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

pentahydrate n.

Brit.

/ˌpɛntəˈhʌɪdreɪt/

U.S.

/ˌpɛn(t)əˈhaɪˌdreɪt/

Chemistry a hydrated compound containing five moles of water per mole of the compound; a hydrated species containing five water molecules.

ΘΚΠ

the world > matter > chemistry > chemical substances > named compounds > [noun] > water > compounds of hydrates > by number of water molecules

pentahydrate1842

trihydrate1854

tetrahydrate1886

1842 T. Graham Elements Chem. ii. v. 446 Its solution [sc. that of hydrate of potassa] in water affords..crystals in the forms of four-sided tables and octahedrons, which are a pentahydrate.

1910 Amer. Naturalist 44 324 Conversely, should the vapor pressure fall below 47 mm., the pentahydrate loses water and is transformed into the trihydrate, and so on.

1975 Nature 28 Aug. 718/2 Hydrated offretite..contains a K ion in each cancrinite cage, a pentahydrate of Mg in each gmelinite cage, and hydrated Ca ions in the main channels.

2002 Mining Ann. Rev. (Nexis) Oct. 1 Expansion of its borax pentahydrate plant at Kirka was completed in the fourth quarter.

单词	pentahydrate
释义	> as lemmas pentahydrate pentahydrate n. Brit. /ˌpɛntəˈhʌɪdreɪt/ , U.S. /ˌpɛn(t)əˈhaɪˌdreɪt/ Chemistry a hydrated compound containing five moles of water per mole of the compound; a hydrated species containing five water molecules. ΘΚΠ the world > matter > chemistry > chemical substances > named compounds > [noun] > water > compounds of hydrates > by number of water molecules pentahydrate1842 trihydrate1854 tetrahydrate1886 1842 T. Graham Elements Chem. ii. v. 446 Its solution [sc. that of hydrate of potassa] in water affords..crystals in the forms of four-sided tables and octahedrons, which are a pentahydrate. 1910 Amer. Naturalist 44 324 Conversely, should the vapor pressure fall below 47 mm., the pentahydrate loses water and is transformed into the trihydrate, and so on. 1975 Nature 28 Aug. 718/2 Hydrated offretite..contains a K ion in each cancrinite cage, a pentahydrate of Mg in each gmelinite cage, and hydrated Ca ions in the main channels. 2002 Mining Ann. Rev. (Nexis) Oct. 1 Expansion of its borax pentahydrate plant at Kirka was completed in the fourth quarter. extracted from penta-comb. form < as lemmas
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