硼化钼(5:2)
硼化钼(5:2)名称
[ CAS 号 ]:
12007-97-5
[ 中文名 ]:
硼化钼(5:2)
[ 英文名 ]:
MOLYBDENUM BORIDE
[英文别名 ]:
- Dimolybdenum pentaboride
- Molybdenum boride (Mo2B5)
- EINECS 234-523-2
- Molybdenum boride
- Molybdenum pentaboride (Mo2B5)
硼化钼(5:2)物理化学性质
[ 熔点 ]:
2200ºC
[ 分子式 ]:
B5H5Mo2
[ 分子量 ]:
251.01500
[ 精确质量 ]:
255.89600
硼化钼(5:2)毒性和生态
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- QA4681000
- CHEMICAL NAME :
- Molybdenum boride
- CAS REGISTRY NUMBER :
- 12007-97-5
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 24
- MOLECULAR FORMULA :
- B5-Mo2
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intratracheal
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 125 mg/kg
- TOXIC EFFECTS :
- Liver - other changes
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 9(6),40,1965
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1377 mg/kg
- TOXIC EFFECTS :
- Liver - other changes
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 9(6),40,1965
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 1380 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 85AEA9 "Environmental Hazards of Metals," Brakhnova, I.T., translated by J.H. Slep, New York, Consultants Bureau, 1975 Volume(issue)/page/year: -,115,1975 *** REVIEWS *** ACGIH TLV-TWA 10 mg(Mo)/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 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 10 mg(Mo)/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: 3,173,1971 OSHA PEL (Gen Indu):8H TWA 15 mg(Mo)/m3, total dust 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 15 mg(Mo)/m3, total dust 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 15 mg(Mo)/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 15 mg(Mo)/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 10 mg(Mo)/m3 JAN 1993 OEL-BELGIUM:TWA 10 mg(Mo)/m3 JAN 1993 OEL-DENMARK:TWA 10 mg(Mo)/m3 JAN 1993 OEL-FRANCE:TWA 5 mg(Mo)/m3;STEL 10 mg(Mo)/m3 JAN 1993 OEL-GERMANY:TWA 15 mg(Mo)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 10 mg(Mo)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 15 mg(Mo)/m3 JAN 1993 OEL-SWEDEN:TWA 10 mg(Mo)/m3 (total dust) JAN 1993 OEL-SWEDEN:TWA 5 mg(Mo)/m3 (resp. dust) JAN 1993 OEL-SWITZERLAND:TWA 10 mg(Mo)/m3 JAN 1993 OEL-TURKEY:TWA 15 mg(Mo)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 10 mg(Mo)/m3;STEL 20 mg(Mo)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV
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硼化钼(5:2)安全信息
[ 安全声明 (欧洲) ]:
S22;S24/25
硼化钼(5:2)制备
可通过硼与钼粉按计量比例混合烧结来制备2Mo+5B→Mo2B5
在1050℃,硼(由BCl3+H2反应形成)沉析于钼丝上并形成Mo2B、Mo2B5及少量MoB4。
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