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溴化镉

溴化镉用途

用于照相纸板、石版印刷等。

溴化镉名称

[ CAS 号 ]:
7789-42-6

[ 中文名 ]:
溴化镉

[ 英文名 ]:
cadmium bromide

[中文别名 ]:

溴化鎘

[英文别名 ]:

cadmium(2+) dibromide
Cadmiumbromide (8CI)
MFCD00015996
EINECS 232-165-1
Cadmium dibromide

溴化镉物理化学性质

[ 密度 ]:
5,192 g/cm3

[ 沸点 ]:
863°C

[ 熔点 ]:
567°C

[ 分子式 ]:
Br₂Cd

[ 分子量 ]:
272.219

[ 闪点 ]:
863°C

[ 精确质量 ]:
271.740021

[ 外观性状 ]:
黄色晶体或粉末

[ 储存条件 ]:
库房通风低温干燥,与酸类,食品分开储运

[ 稳定性 ]:
Stable.

溴化镉MSDS

详细MSDS(安全技术说明书)

溴化镉毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EU9935000

CHEMICAL NAME :: Cadmium bromide

CAS REGISTRY NUMBER :: 7789-42-6

LAST UPDATED :: 199712

DATA ITEMS CITED :: 28

MOLECULAR FORMULA :: Br2-Cd

MOLECULAR WEIGHT :: 272.22

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 322 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85PDAD "Evaluation of the Impact of Cadmium on the Health of Man", Oxford, UK. Pergamon Press Ltd., 1978 Volume(issue)/page/year: -,67,1978 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 733 mg/kg/90D-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes in urine composition Nutritional and Gross Metabolic - changes in iron Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases

REFERENCE :: ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 40,231,1978 *** REVIEWS *** ACGIH TLV-TWA 0.01 mg(Cd)/m3, inhalable dust 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-TWA 0.002 mg(Cd)/m3, respirable dust 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-Suspected 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 IARC Cancer Review:Human Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 58,119,1993 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 58,119,1993 IARC Cancer Review:Group 1 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 58,119,1993 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.2 mg(Cd)/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: 3,34,1971 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-BELGIUM:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-DENMARK:TWA 0.01 mg(Cd)/m3 JAN 1993 OEL-FINLAND:TWA 0.02 mg(Cd)/m3;Carcinogen JAN 1993 OEL-GERMANY;Carcinogen JAN 1993 OEL-INDIA:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-JAPAN:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.02 mg(Cd)/m3;STEL 0.1 mg(Cd)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.2 mg(Cd)/m3 JAN 1993 OEL-RUSSIA:TWA 0.01 mg(Cd)/m3;STEL 0.05 mg(Cd)/m3 JAN 1993 OEL-SWEDEN:TWA 0.02 mg(Cd)/m3;Carcinogen JAN 1993 OEL-SWITZERLAND:TWA 0.05 mg(Cd)/m3 JAN 1993 OEL-THAILAND:TWA 0.2 mg(Cd)/m3;STEL 0.5 mg(Cd)/m3 JAN 1993 OEL-TURKEY:TWA 0.2 mg(Cd)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.01 mg(Cd)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

溴化镉安全信息

[ 危害码 (欧洲) ]:
Xn,N

[ 风险声明 (欧洲) ]:
20/21/22-50/53

[ 安全声明 (欧洲) ]:
S60-S61

[ 危险品运输编码 ]:
UN 3077 9/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
EU9935000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

溴化镉制备

1.将氢溴酸加到金属镉中，再加过量的溴水。

当金属镉大部分溶解后，滤去未溶的镉，所得滤液加热蒸发至接近饱和，在0ºC冷却结晶，分离出的结晶用水进行重结晶，即为四水合溴化镉。

在真空条件下干燥，则可得无水溴化镉。

2.将金属镉置于石英舟中，放入充满干燥氮气的耐热玻璃管内。在450℃的温度下，用氮气通过一个盛有Br2的洗瓶，把Br2带到石英舟上与Cd进行溴化反应。要使３g金属镉完全反应掉，需约2h。如果想要提高反应温度来加快溴化反应是不可取的，因为反应温度提高会有金属镉及产品被蒸发掉。当产物出现持续亮黄色时，反应结束。把CdBr2在Br2气氛中蒸馏二次，然后使CdBr2熔化，用纯的CO2脱除过量的Br2，即可获得无水溴化镉。

3.将CdBr2·4H2O(制备方法见CdBr2·4H2O制法)的晶体置于装有氢氧化钾的减压干燥器中干燥，即可得无水溴化镉。

溴化镉