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硫酸铬钾,十二水合物

硫酸铬钾,十二水合物用途

用作鞣剂、媒染剂及照相定影剂等
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硫酸铬钾,十二水合物名称

[ CAS 号 ]:
7788-99-0

[ 中文名 ]:
硫酸铬钾

[ 英文名 ]:
Chromium potassium sulfate dodecahydrate

[中文别名 ]:

[英文别名 ]:

硫酸铬钾,十二水合物物理化学性质

[ 密度 ]:
1.83

[ 沸点 ]:
330ºC at 760 mmHg

[ 熔点 ]:
89 °C(lit.)

[ 分子式 ]:
H24CrKO20S2

[ 分子量 ]:
499.403

[ 精确质量 ]:
498.934448

[ PSA ]:
288.04000

[ 外观性状 ]:
灰色晶体

[ 储存条件 ]:
库房低温,通风,干燥

[ 稳定性 ]:
Stable. Incompatible with magnesium, aluminium.

[ 水溶解性 ]:
24 g/100 mL (15 ºC)

硫酸铬钾,十二水合物MSDS

硫酸铬钾,十二水合物毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GB6850000
CAS REGISTRY NUMBER :
7788-99-0
LAST UPDATED :
199712
DATA ITEMS CITED :
14
MOLECULAR FORMULA :
O8-S2.Cr.K.12H2-O
MOLECULAR WEIGHT :
499.41

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
112 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
135 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application

MUTATION DATA

TYPE OF TEST :
DNA repair
TEST SYSTEM :
Bacteria - Escherichia coli
DOSE/DURATION :
125 ug/well
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 133,161,1984 *** REVIEWS *** ACGIH TLV-TWA 0.5 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: Cr,22,1974 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 1 mg(Cr)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,35,1971 OSHA PEL (Gen Indu):8H TWA 0.5 mg(Cr)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.5 mg(Cr)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.5 mg(Cr)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.5 mg(Cr)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82893 No. of Facilities: 26 (estimated) No. of Industries: 3 No. of Occupations: 6 No. of Employees: 391 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82893 No. of Facilities: 518 (estimated) No. of Industries: 7 No. of Occupations: 6 No. of Employees: 9625 (estimated) No. of Female Employees: 119 (estimated)
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硫酸铬钾,十二水合物安全信息

[ 危害码 (欧洲) ]:
Xi:Irritant;

[ 风险声明 (欧洲) ]:
R36/38

[ 安全声明 (欧洲) ]:
S22-S24/25-S37/39-S26

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
2

[ RTECS号 ]:
GB6850000

[ 海关编码 ]:
2833309000

硫酸铬钾,十二水合物制备

1.将重铬酸钾溶于热水中,过滤。向滤液中加入浓硫酸,再逐渐加入乙醇。当液体变为深绿色时,继续加乙醇至不再发生变化,即达反应终点。将溶液蒸发,加水至溶液的相对密度为1.5,然后静置使其结晶。吸滤出结晶,充分干燥即可。

2.在重铬酸钾和硫酸铵溶液中加入木屑,于80℃以下进行还原反应,经静置缓慢结晶、固液分离、用少量冷水洗涤结晶、低温干燥制得。或者将二氧化硫通入冷却至0℃的重铬酸钾饱和溶液,加入硫酸酸化制得。

3.按理论量用15%的硫酸水溶液重铬酸钾,边搅拌边将混合液缓慢加到冷却状态下的乙醇液中进行反应:

反应结束后,加入密度为1.40的硝酸,用量为原料总体积的1/20,蒸发溶液至醋酸气味完全消失。然后加入等体积的乙醇,混合均匀。静置,使铬钾矾结晶充分沉淀。将滤出的结晶溶于不超过40℃的热水中,于30℃左右环境中自然蒸发,即可得试剂硫酸铬钾。


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硫酸铬钾,十二水合物海关

[ 海关编码 ]: 2833309000

硫酸铬钾,十二水合物文献

Calcium current diversity in physiologically different local interneuron types of the antennal lobe.

J. Neurosci. 29 , 716-26, (2009)

Behavioral and physiological studies show that neuronal interactions among the glomeruli in the insect antennal lobe (AL) take place during the processing of odor information. These interactions are m...

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 ...

[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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