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铀标准溶液

铀标准溶液用途

铀化合物早期用于瓷器的着色,在核裂变现象被发现后用作为核燃料 
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铀标准溶液名称

[ CAS 号 ]:
7440-61-1

[ 中文名 ]:

[ 英文名 ]:
Uranium standard solution

[英文别名 ]:

铀标准溶液物理化学性质

[ 密度 ]:
1.01 g/mL at 25ºC

[ 沸点 ]:
3818ºC

[ 熔点 ]:
1132°C

[ 分子式 ]:
U

[ 分子量 ]:
238.02900

[ 精确质量 ]:
238.05100

[ 外观性状 ]:
液体

[ 储存条件 ]:
室温

铀标准溶液MSDS

铀标准溶液毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
YR3490000
CHEMICAL NAME :
Uranium
CAS REGISTRY NUMBER :
7440-61-1
LAST UPDATED :
199710
DATA ITEMS CITED :
30
MOLECULAR FORMULA :
U
MOLECULAR WEIGHT :
238.00
WISWESSER LINE NOTATION :
.UR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
750 mg/kg
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(10),27,1972 *** REVIEWS *** TOXICOLOGY REVIEW HXPHAU Handbuch der Experimentellen Pharmakologie. (Berlin, Ger.) New series: V.1-49, 1935-78. For publisher information, see HEPHD2. Volume(issue)/page/year: 36,197,1973 TOXICOLOGY REVIEW HXPHAU Handbuch der Experimentellen Pharmakologie. (Berlin, Ger.) New series: V.1-49, 1935-78. For publisher information, see HEPHD2. Volume(issue)/page/year: 36,165,1973 TOXICOLOGY REVIEW AJMEAZ American Journal of Medicine. (Technical Pub., 875 Third Ave., New York, NY 10022) V.1- 1946- Volume(issue)/page/year: 38,409,1965 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.2 mg/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: 3,274,1971 OSHA PEL (Gen Indu):8H TWA 0.05 mg(U)/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 0.25 mg(U)/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 0.2 mg(U)/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 0.25 mg(U)/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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 0.2 mg(U)/m3;STEL 0.6 mg(U)/m3 JAN 1993 OEL-BELGIUM:TWA 0.2 mg(U)/m3;STEL 0.5 mg(U)/m3 JAN 1993 OEL-BELGIUM:TWA 0.2 mg(U)/m3;STEL 0.6 mg(U)/m3 JAN 1993 OEL-DENMARK:TWA 0.2 mg(U)/m3 JAN 1993 OEL-FINLAND:TWA 0.2 mg(U)/m3 JAN 1993 OEL-GERMANY:TWA 0.25 mg(U)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.2 mg(U)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.05 mg(U)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.25 mg(U)/m3 JAN 1993 OEL-POLAND:TWA 0.015 mg(U)/m3 JAN 1993 OEL-POLAND:TWA 0.075 mg(U)/m3 JAN 1993 OEL-RUSSIA:STEL 0.015 mg(U)/m3 JAN 1993 OEL-RUSSIA:STEL 0.075 mg(U)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.2 mg(U)/m3 JAN 1993 OEL-TURKEY:TWA 0.05 mg(U)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.2 mg(U)/m3;STEL 0.6 mg(U)/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO URANIUM, insol-air:10H CA TWA 0.2 mg/m3;STEL 0.6 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO URANIUM, soluble compounds-air:10H CA TWA 0.05 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992
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铀标准溶液安全信息

[ 危害码 (欧洲) ]:
T+

[ 风险声明 (欧洲) ]:
20-34-53-33-26/28

[ 安全声明 (欧洲) ]:
26-36/37/39-45-61-20/21

[ 危险品运输编码 ]:
UN 3264 8/PG 3

[ WGK德国 ]:
3

[ 危险类别 ]:
7

铀标准溶液制备

如图所示 钙还原UF4、NpF4、PuF4制备金属

单质的钢弹还原容器

(最大容器用作2.5kg的批量制备)

采用钢弹还原技术,用钙还原铀的氟化物(UF4)并用碘作为促进剂(增压器)可得到致密的金属铀熔渣。每摩尔铀需要加入约0.15mol碘来促进反应,钙金属过量约25%,所设计的反应装置如图所示。所有还原容器的交叉部分规模都趋向一致。最小的容器用于制备1g量的金属,产率>95%,最大的容器用于批量制备2.5kg量的金属,产率>99%。将氟化铀与粒状的钙和碘混合,倒进大小合适的还原容器中,所用容器是由一个不锈钢质且用镁砂作内衬的耐压容器组成,内衬可以是单个的低密度坩埚,在大装置中也可以是一个在环形空间中填充上镁砂的小一点的坩埚。在装上反应物以后,盖上盖子,抽空容器,再充上氩气,密封气体接口,给环形线圈接上10kHz的感应加热容器。加热后,倾出容器内的物质,打碎坩埚,机械分离金属熔渣和炉渣。

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区域:上海市普陀区

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