{"title":"硫酸肼的多态改性:液相结晶及一些性能","authors":"M. V. Kudryashov, P. D. Drozhilkin, N. V. Somov","doi":"10.1134/S1063774524602119","DOIUrl":null,"url":null,"abstract":"<p>The formation of orthorhombic and monoclinic polymorphic modifications of hydrazine sulfate from an aqueous solution in the temperature range from 5 to 35°C was studied. A curve of the hydrazine sulfate solubility in water in the range of 5–25°C was obtained. It is shown that, with a decrease in the growth temperature, the mass fraction of precipitated monoclinic hydrazine sulfate crystals increases. A possible temperature-induced transition from the orthorhombic to the monoclinic modification was detected when cooling to the boiling temperature of liquid nitrogen.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 7","pages":"1169 - 1172"},"PeriodicalIF":0.6000,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hydrazine Sulfate Polymorphic Modifications: Liquid Phase Crystallization and Some Properties\",\"authors\":\"M. V. Kudryashov, P. D. Drozhilkin, N. V. Somov\",\"doi\":\"10.1134/S1063774524602119\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The formation of orthorhombic and monoclinic polymorphic modifications of hydrazine sulfate from an aqueous solution in the temperature range from 5 to 35°C was studied. A curve of the hydrazine sulfate solubility in water in the range of 5–25°C was obtained. It is shown that, with a decrease in the growth temperature, the mass fraction of precipitated monoclinic hydrazine sulfate crystals increases. A possible temperature-induced transition from the orthorhombic to the monoclinic modification was detected when cooling to the boiling temperature of liquid nitrogen.</p>\",\"PeriodicalId\":527,\"journal\":{\"name\":\"Crystallography Reports\",\"volume\":\"69 7\",\"pages\":\"1169 - 1172\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2025-02-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Crystallography Reports\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063774524602119\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CRYSTALLOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774524602119","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
Hydrazine Sulfate Polymorphic Modifications: Liquid Phase Crystallization and Some Properties
The formation of orthorhombic and monoclinic polymorphic modifications of hydrazine sulfate from an aqueous solution in the temperature range from 5 to 35°C was studied. A curve of the hydrazine sulfate solubility in water in the range of 5–25°C was obtained. It is shown that, with a decrease in the growth temperature, the mass fraction of precipitated monoclinic hydrazine sulfate crystals increases. A possible temperature-induced transition from the orthorhombic to the monoclinic modification was detected when cooling to the boiling temperature of liquid nitrogen.
期刊介绍:
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.