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lithium selenate wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 preparation 2 properties toggle properties subsection 2 1 structure 2 2 monohydrate 2 3 thermal behaviour 3 references toggle the table of contents lithium selenate 1 language русский edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia lithium selenate names other names dilithium selenate identifiers cas number 15593 52 9 7790 71 8 monohydrate echa infocard 100 036 046 ec number 239 668 5 comptox dashboard epa dtxsid50889645 properties chemical formula li 2 seo 4 molar mass 156 84 g mol appearance colorless crystals density 2 99 g cm 3 solubility in water soluble in water structure crystal structure trigonal space group r 3 no 148 except where otherwise noted data are given for materials in their standard state at 25 c 77 f 100 kpa infobox references chemical compound lithium selenate is an inorganic compound of lithium and the selenate ion with the chemical formula li 2 seo 4 it is a colorless water soluble crystalline salt it forms a well characterized monohydrate li 2 seo 4 h 2 o which is a polar and pyroelectric crystal 1 2 preparation edit lithium selenate can be prepared by neutralizing selenic acid with lithium carbonate li 2 co 3 h 2 seo 4 li 2 seo 4 co 2 h 2 o crystallization from aqueous solution generally gives the hydrated salt large single crystals of the monohydrate have been grown from aqueous solution at about 343 k 2 properties edit structure edit anhydrous li 2 seo 4 crystallizes in the trigonal crystal system in space group r 3 no 148 its crystal structure was refined by pertlik and fuith in 1989 3 the structure consists of isolated seo 4 2 tetrahedra connected through lithium oxygen coordination polyhedra 3 monohydrate edit lithium selenate monohydrate li 2 seo 4 h 2 o crystallizes in the monoclinic space group p 2 1 no 4 at room temperature its lattice parameters are approximately a 5 580 å b 5 028 å c 8 452 å and β 107 63 with two formula units per unit cell 1 it is isostructural with lithium sulfate monohydrate the crystal structure contains lio 4 and lio 3 h 2 o tetrahedra together with seo 4 tetrahedra these share oxygen vertices to form a three dimensional framework 1 because space group p 2 1 is polar the monohydrate is pyroelectric its pyroelectric coefficient and thermal expansion have been measured between approximately 183 and 343 k 2 the crystal is also optically anisotropic refractive indices have been measured over wavelengths from 365 to 1530 nm and calculations indicate that li 2 seo 4 h 2 o permits both type i and type ii phase matching for second harmonic generation from wavelengths of roughly 650 nm into the near infrared 2 thermal behaviour edit hydrated lithium selenate loses water on heating thermogravimetric studies of hydrated samples found dehydration mainly between about 120 and 250 c 4 at still higher temperature molten li 2 seo 4 is progressively reduced to lithium selenite li 2 seo 3 between approximately 650 and 850 c 4 li 2 seo 4 li 2 seo 3 1 2 o 2 above about 900 c further mass loss occurs through decomposition and volatilization of the selenite lithium oxide remains among the final solid products 4 references edit 1 2 3 johnston magnus g harrison william t a 2003 dilithium selenate hydrate li 2 seo 4 h 2 o acta crystallographica section e 59 i25 i27 doi 10 1107 s1600536803002526 1 2 3 4 becker petra ahrweiler s held peter schneeberger helmut bohatý ladislav 2003 thermal expansion pyroelectricity and linear optical properties of li 2 seo 4 h 2 o and li 2 so 4 h 2 o crystal research and technology 38 10 881 889 doi 10 1002 crat 200310107 1 2 pertlik f fuith a h 1989 structure of dilithium selenate vi acta crystallographica section c 45 158 159 doi 10 1107 s0108270188009795 1 2 3 ionashiro m giolito i 1980 thermal decomposition of the alkali metal selenates thermochimica acta 40 143 148 doi 10 1016 0040 6031 80 85042 8 v t e lithium compounds list compounds with noble gases lihe hlihe hypothetical lifheo hypothetical lihe 2 hypothetical heo lif 2 hypothetical la 2 3 x li 3x tio 3 he hypothetical compounds with halogens flibe flinak liat hypothetical libr libro libro 2 libro 3 libro 4 licl liclo liclo 2 liclo 3 liclo 4 lif li 2 f lifo lii liio liio 2 liio 3 liio 4 oxides and hydroxides lio lio 2 lio 3 li 2 o li 2 o 2 lioh compounds with chalcogens licf 3 so 3 lihso 3 lihso 4 li 2 po li 2 s li 2 se li 2 seo 3 li 2 seo 4 li 2 te lite 3 li 2 teo 3 li 2 teo 4 compounds with pnictogens li 1 x al x ge 2 x po 4 3 lial 1 x ti 2 x po 4 3 li 3 sb lias liasf 6 li 3 aso 4 lifepo 4 lige 2 po 4 3 lih 2 aso 4 li 2 haso 4 li 2 hpo 3 li 2 hpo 4 li 3 po 3 li 3 po 4 lih 2 po 3 lih 2 po 4 lin 3 li 3 n linh 2 li 2 nh lino 2 lino 3 li 2 n 2 o 2 li 2 napo 3 linano 2 li 3 p lipf 6 li 3 po 4 li sbf 6 liti 2 po 4 3 lizr 2 po 4 3 compounds with group 14 elements li 2 c 2 li 2 co 3 li 2 gef 6 li 2 geo 3 lihco 3 li 3 h co 3 2 lisi li 2 sif 6 li 2 sio 3 li 2 si 2 o 5 li 4 sio 4 li 2 snf 6 compounds with group 13 elements cslib 6 o 10 lialcl 4 lialf 4 li 3 alf 6 lialh 4 lialo 2 lib c 2 o 4 2 lib c 6 f 5 4 libf 4 libh 4 libo 2 lib 3 o 5 li 2 b 4 o 7 libsi 2 ligah 4 compounds with transition metals li aucl 4 licoo 2 li 2 cro 4 li 2 cr 2 o 7 li 2 iro 3 li 7 la 3 zr 2 o 12 limn 2 o 4 li 2 moo 4 li 0 9 mo 6 o 17 linbo 3 li 2 nbo 3 li 2 pto 3 li 2 ruo 3 litao 3 li 2 tif 6 li 2 tio 3 li 4 ti 5 o 12 livo 3 li 3 v 2 po 4 3 liwf 6 li 2 wo 4 li 2 zrf 6 li 2 zro 3 organic soaps hemolithin extraterrestrial protein organolithium reagents gilman reagent ch 3 cooli c 4 h 6 lino 4 lic 2 f 6 no 4 s 2 lin sime 3 2 li 3 c 6 h 5 o 7 c 5 h 5 li lin c 3 h 7 2 c 6 h 5 2 pli c 18 h 35 lio 3 c 6 h 13 li c 4 h 9 li ch 3 chlich 2 ch 3 ch 3 3 cli c 12 h 28 bli ch 3 li li c 10 h 8 c 5 h 11 li c 5 h 3 lin 2 o 4 c 6 h 5 li lic 2 ch 3 c 7 h 5 lio 3 lio 2 c ch 2 16 ch 3 c 4 h 5 lio 4 liet 3 bh lioc ch 3 3 c 9 h 18 lin lic 2 h 3 lic 11 h 23 coo ch 3 ch oh cooli lic 2 h 2 clo 2 lic 2 h 3 io 2 li ch 3 2 n licho 2 lich 3 o lic 2 h 5 o li 2 c 2 o 4 other compounds li 2 li x be y hypothetical licn li 2 cn 2 licno lih lina liscn liyf 4 neodymium doped minerals amblygonite berezanskite brannockite cryolithionite darapiosite darrellhenryite elbaite fluorine elbaite fluor liddicoatite emeleusite eucryptite faizievite hectorite hsianghualite jadarite kunzite lavinskyite lepidolite lithiophilite lithiophosphate manandonite manganoneptunite nambulite neptunite olympite petalite pezzottaite rossmanite saliotite sogdianite spodumene sugilite tiptopite tourmaline triphylite zabuyelite zektzerite zinnwaldite other li related aluminium lithium alloys heteroatom promoted lateral lithiation lb buffer lithium atom lithium medication lithium cocrystal lini x co y al z o 2 lini x mn y co z o 2 lithium soap lithium triangle lucifer yellow magnesium lithium alloys nasicon environmentally friendly red light flare v t e salts and covalent derivatives of the selenate ion h 2 seo 4 he li 2 seo 4 beseo 4 b c nh 4 2 seo 4 o f ne na 2 seo 4 mgseo 4 al 2 seo 4 3 si p s cl ar k 2 seo 4 caseo 4 sc ti v cr mn feseo 4 fe 2 seo 4 3 coseo 4 niseo 4 cuseo 4 znseo 4 ga 2 seo 4 3 ge as seo 4 2 br kr rb 2 seo 4 srseo 4 y zr seo 4 2 nb mo tc ru rh pd ag 2 seo 4 cdseo 4 in 2 seo 4 3 sn sb te i xe cs 2 seo 4 baseo 4 lu 2 seo 4 3 hf seo 4 2 ta w re os ir pt au 2 seo 3 2 seo 4 hg tl pbseo 4 bi po at rn fr ra lr rf db sg bh hs mt ds rg cn nh fl mc lv ts og la 2 seo 4 3 ce 2 seo 4 3 ce seo 4 2 pr 2 seo 4 3 nd 2 seo 4 3 pm sm 2 seo 4 3 eu 2 seo 4 3 gd 2 seo 4 3 tb dy 2 seo 4 3 ho 2 seo 4 3 er 2 seo 4 3 tm 2 seo 4 3 yb 2 seo 4 3 ac th seo 4 2 h 3 pao seo 4 3 uo 2 seo 4 npo 2 2 seo 4 pu am cm bk cf es fm md no retrieved from https en wikipedia org w index php title lithium_selenate oldid 1375256788 categories lithium compounds selenates hidden categories chemical articles with multiple compound ids multiple chemicals in an infobox that need indexing chemical articles with multiple cas registry numbers chemicals without a pubchem cid articles without inchi source chemical pages without chemspiderid articles without ebi source articles without kegg source articles without unii source echa infocard id from wikidata articles containing unverified chemical infoboxes chembox articles without image articles with short description short description matches wikidata this page was last edited on 16 september 2026 at 18 57 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents lithium selenate 1 language add topic