无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2010年
1期
45-48
,共4页
尹霞%吴玉双%李琴香%曾德文%王成
尹霞%吳玉雙%李琴香%曾德文%王成
윤하%오옥쌍%리금향%증덕문%왕성
溶解度%相平衡%硝酸锂%硝酸钾
溶解度%相平衡%硝痠鋰%硝痠鉀
용해도%상평형%초산리%초산갑
solubility%phase equilibrium%lithium nitrate%potassium nitrate
本文采用等温法分别测定了KNO_3-H_2O体系的溶解度相图以及LiNO_3-KNO_3-H_2O体系在273.15和298.15 K的等温溶解度相图.结果表明在273.15 K时LiNO_3-KNO_3-H_2O体系的溶解度等温线有2条分支,对应的固相分别为KNO_3和LiNO_3·3H_2O,共饱点组成为31.55wt%LiNO_3和7.07wt%KNO_3.该体系在298.15 K的等温线有3条分支,对应的同相分别为KNO_3,LiNO_3和LiNO_3·3H_2O,2个共饱点组成分别为50.42wt%LiNO_3,22.18wt%KNO_3,和55.74wt%LiNO_3,10.9wt%KNO_3.
本文採用等溫法分彆測定瞭KNO_3-H_2O體繫的溶解度相圖以及LiNO_3-KNO_3-H_2O體繫在273.15和298.15 K的等溫溶解度相圖.結果錶明在273.15 K時LiNO_3-KNO_3-H_2O體繫的溶解度等溫線有2條分支,對應的固相分彆為KNO_3和LiNO_3·3H_2O,共飽點組成為31.55wt%LiNO_3和7.07wt%KNO_3.該體繫在298.15 K的等溫線有3條分支,對應的同相分彆為KNO_3,LiNO_3和LiNO_3·3H_2O,2箇共飽點組成分彆為50.42wt%LiNO_3,22.18wt%KNO_3,和55.74wt%LiNO_3,10.9wt%KNO_3.
본문채용등온법분별측정료KNO_3-H_2O체계적용해도상도이급LiNO_3-KNO_3-H_2O체계재273.15화298.15 K적등온용해도상도.결과표명재273.15 K시LiNO_3-KNO_3-H_2O체계적용해도등온선유2조분지,대응적고상분별위KNO_3화LiNO_3·3H_2O,공포점조성위31.55wt%LiNO_3화7.07wt%KNO_3.해체계재298.15 K적등온선유3조분지,대응적동상분별위KNO_3,LiNO_3화LiNO_3·3H_2O,2개공포점조성분별위50.42wt%LiNO_3,22.18wt%KNO_3,화55.74wt%LiNO_3,10.9wt%KNO_3.
By means of isothermal solution method,solubility of the binary system KNO_3-H_2O and the isotherms of ternary system LiNO_3-KNO_3-H_2O at 273.15 and 298.15 K were measured.The results show that there are two 31.55wt% LiNO_3 and 7.07wt% KNO_3,while there are three solubility branches at 298.15 K corresponding to solid 22.18wt% KNO_3 and 55.74wt% LiNO_3,10.9wt% KNO_3,respectively.
