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硫酸铬
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| 密度 | 1.12 g/mL at 20?C |
|---|---|
| 沸点 | 330?C at 760 mmHg |
| 熔点 | 89?C |
| 分子式 | CrKO8S2 |
| 分子量 | 283.220 |
| 精确质量 | 282.807678 |
| PSA | 177.28000 |
| 计算化学 |
1.疏水参数计算参考值（XlogP）:无 2.氢键供体数量:0 3.氢键受体数量:8 4.可旋转化学键数量:0 5.互变异构体数量:无 6.拓扑分子极性表面积:177 7.重原子数量:12 8.表面电荷:0 9.复杂度:62.2 10.同位素原子数量:0 11.确定原子立构中心数量:0 12.不确定原子立构中心数量:0 13.确定化学键立构中心数量:0 14.不确定化学键立构中心数量:0 15.共价键单元数量:4 |
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硫酸铬毒性英文版
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| 符号 |
GHS07 |
|---|---|
| 信号词 |
Warning |
| 危害声明 |
H315-H319 |
| 警示性声明 |
P305 + P351 + P338 |
| 个人防护装备 |
Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter |
| 风险声明 (欧洲) |
R36/37/38 |
| 安全声明 (欧洲) |
26 |
| 危险品运输编码 | NONH for all modes of transport |
| RTECS号 | GB6845000 |
| 海关编码 | 2833292000 |
【方法一】
硫酸铬钾的工业生产方法可采用有机物还原法和二氧化硫还原法。
有机物还原法 将99％重铬酸钾和98%硫酸按理论量溶解于铬明矾母液后，在搅拌下缓慢加入木屑进行还原。反应温度控制不超过80℃，反应结束后，静置缓慢结晶，经离心分离母液后，把结晶用少量冷水洗涤，再经低温干燥，制得硫酸铬钾成品。其2K2Cr2O7+8H2SO4+40H2O+3C→本品+3CO2↑
母液和洗液返回反应器，用以溶解重铬酸钾。
| 海关编码 | 2833292000 |
|---|
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Characterization of the community structure of a dechlorinating mixed culture and comparisons of gene expression in planktonic and biofloc-associated “Dehalococcoides” and Methanospirillum species. Appl. Environ. Microbiol. 74 , 6709-19, (2008)
This study sought to characterize bacterial and archaeal populations in a perchloroethene- and butyrate-fed enrichment culture containing hydrogen-consuming “Dehalococcoides ethenogenes” strain 195 an…
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Morphological study on pigmented cells in the horse testis. J. Vet. Med. Sci. 61(10) , 1183-6, (1999)
One of the most attractive characteristics of a horse testis is the change of the weight during development. As the testicular weight changes and the number of Leydig cells decreases, pigments appear …
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[Determination of the relative RNA-content of liver cell nuclei with gallocyanin-chromealum-staining (author's transl)]. Acta Histochem. 69(2) , 307-13, (1981)
The relative RNA-content of liver cell nuclei from histological slides of rat liver was determined by automatical microscope picture analysis. The slides were stained with Gallocyanin-Chromealum. Exti…
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crystalchromealum |
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EINECS 233-401-6 |
|
MFCD00011363 |
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chromepotashalum |
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Chromium potassium sulfate |
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potassiumchromicsulfate |
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Chromium(3+) potassium sulfate (1:1:2) |
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CHROMIUM AMMONIUM SULFATE |
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AMMONIUM CHROMIUM SULFATE |
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chromiumpotassiumsulphate |
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ALUM CHROME |
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chromicpotassiumsulfate |
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potassiumchromicsulphate |
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