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单词 trona
释义

trona


tro·na

T0377100 (trō′nə)n. A natural vitreous gray or white mineral, Na2CO3·NaHCO3·2H2O, used as a source of sodium compounds.
[Swedish, probably from Arabic dialectal ṭrōn, variant of Arabic naṭrūn, natron; see natron.]

trona

(ˈtrəʊnə) n (Minerals) a greyish mineral that consists of hydrated sodium carbonate and occurs in salt deposits. Formula: Na2CO3NaHCO3.2H2O[C18: from Swedish, probably from Arabic natrūn natron]

tro•na

(ˈtroʊ nə)

n. a grayish or yellowish mineral, hydrous sodium acid carbonate, Na3H(CO)2∙2H2O, formed by evaporation in lake beds. [1790–1800; < Sp < dial. Arabic ṭrōn, aph. variant of naṭrūn natron]

Trona


trona

[′trō·nə] (mineralogy) Na2(CO3)·Na(HCO3)·2H2O A gray-white or yellowish-white mineral that crystallizes in the monoclinic system and occurs in fibrous or columnar layers or masses. Also known as urao.

Trona

 

a mineral of the subclass of simple hydrous carbonates Na3H[CO3]2·2H2O. Trona crystallizes in the monoclinic system, usually forming grayish or yellowish-white granular or powdery masses. It has a hardness of 2.5–3.0 on Mohs’ scale and a density of 2,140–2, 170 kg/m3. It is freely soluble in water. Trona occurs in salt lake deposits in association with soda, thermonatrite, and mirabilite and is used as a raw material for soda manufacture. There are trona deposits in the lakes of the Kulunda Steppe (USSR) and California and Nevada (USA) and in the lakes of the Arab Republic of Egypt. Large stratified deposits are found in the USA, in Wyoming.

trona


tro·na

(trō'nă), A native sodium carbonate.
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更新时间：2024/11/13 19:31:29