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单词 trisilicate
释义

trisilicaten.

/trʌɪˈsɪlɪkət/
Etymology: < tri- comb. form + silicate n.
Chemistry and Mineralogy.
A compound of one or more basic oxides with silicon dioxide or silica, SiO2:
a. In early nomenclature denoting a compound of silicon dioxide with three equivalents of the base (see note s.v. tri- comb. form 3a); thus trisilicate of iron denoted a compound of three equivalents of iron oxide and one of silicon dioxide, then called silicic acid.
ΘΚΠ
the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > silicates > specific named
borosilicate1817
trisilicate1850
singulo-silicate1883
thorosilicate1889
nickel-chlorite1961
the world > matter > chemistry > elements and compounds > metals > specific elements > silicon > [noun] > compounds > other
trisilicate1850
silicon carbide1893
silane1916
siloxane1917
silicophosphate1927
halophosphate1946
1850 C. G. B. Daubeny Introd. Atomic Theory (ed. 2) 112 Trisilicate of iron [denotes] 3 of base to 1 of silicic acid.
b. Later used for compounds derived from hypothetical trisilicic acids, formed of three molecules of silicon dioxide (SiO2) with varying numbers of water molecules; e.g. 3SiO2.2H2O; 3SiO2.5H2O.
ΚΠ
1868 H. Watts Dict. Chem. V. 243 Silicates are sometimes distinguished by names which express directly the oxygen-ratio in the base and acid..1:3 Trisilicates.
c. In Mineralogy, denoting a silicate in which the oxygen in the silicon dioxide bears to the oxygen in the basic oxides the ratio 3:1.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > [noun] > uni- or tri-silicate
unisilicate1867
trisilicate1902
1868 H. Watts Dict. Chem. V. 251 Bohemian glass-tubing consists of potassio-calcic trisilicate, 2(K2O.3SiO2)3(Ca″O.3SiO2).
1902 H. A. Miers Mineral. i. 208 Albite, Na2O.Al2O3.6SiO2 or NaAlSi3O8... According to [its] oxygen ratio, therefore..Albite is a trisilicate.

Derivatives

trisilicic adj. /traɪsɪˈlɪsɪk/ see b.
ΚΠ
1905 G. S. Newth Text-bk. Inorg. Chem. (ed. 11) 637 By the partial withdrawal of water from three molecules of silicic acid a number of hypothetical trisilicic acids may be derived... Felspar, or orthoclase, is a trisilicate, Al2K2(Si3O8)2.
1911 H. E. Roscoe & C. Schorlemmer Treat. Chem. (ed. 4) I. 920 Derivatives of trisilicic acid, H4Si3O8[3Si(OH)44H2O].
This entry has not yet been fully updated (first published 1915; most recently modified version published online September 2021).
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n.1850
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