三氧化钼

外观与性状：

淡黄色-绿色粉末

密度：

4.692

熔点：

795ºC

沸点：

1155ºC

闪点：

1155ºC subl.

存储条件/存储方法：

1.贮存于阴凉、通风仓库内。远离火种、热源。保持容器密封。

2.专人保管。应与卤化物、食用化工原料等分开存放。分装和搬运作业要注意个人防护。

稳定性相关：

1.在空气中很稳定，通入干燥氯化氢，加热升华成淡黄色针状结晶。与卤素化合物如五氟化溴、三氟化氯发生剧烈反应。受高热分解，放出有毒的烟气。

2.有毒，有还原性。

其它信息：

1.       性状：无色或黄白色粉末，斜方晶系结晶。受热变黄，冷后复原。

2.       密度（g/cm³,25/4℃）：4.692

3.       熔点（ºC）：801

4.       沸点（ºC,常压）：1155

5.       闪点（ºC）：1155

6.    溶解性：微溶于水，易溶于过量的碱而成钼酸盐，溶于浓硝酸、浓盐酸或浓硝酸和浓硫酸的混合物，可溶于氨水，氢氟酸，不溶于一般酸。

海关代码：

2825700000

危险类别码：

R36/37;R48/20/22

安全说明：

S22-S25

安全标志：

S22:不要吸入粉尘。
S23:不要吸入蒸汽。

危险标志：

Xn:Harmful;

CHEMICAL IDENTIFICATION

RTECS NUMBER :

QA4725000

CHEMICAL NAME :

Molybdenum trioxide

CAS REGISTRY NUMBER :

1313-27-5

LAST UPDATED :

199712

DATA ITEMS CITED :

39

MOLECULAR FORMULA :

Mo-O3

MOLECULAR WEIGHT :

143.94

WISWESSER LINE NOTATION :

MO O3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Human - man

DOSE/DURATION :

6 mg/m3/4Y

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Lungs, Thorax, or Respiration - cough

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2689 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>5840 mg/m3/4H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>2 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

141 mg/kg

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

94 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD75 - Lethal Dose

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - guinea pig

DOSE/DURATION :

400 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

10 mg/m3/2H/9W-I

TOXIC EFFECTS :

Liver - fatty liver degeneration

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

100 mg/m3/6H/14D-I

TOXIC EFFECTS :

Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

300 mg/m3/6H/14D-I

TOXIC EFFECTS :

Nutritional and Gross Metabolic - conditioned vitamin deficiency

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

100 mg/m3/6H/2Y-I

TOXIC EFFECTS :

Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

10 mg/m3/6H/2Y-I

TOXIC EFFECTS :

Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

4750 mg/kg/7W-I

TOXIC EFFECTS :

Tumorigenic - neoplastic by RTECS criteria Lungs, Thorax, or Respiration - tumors

MUTATION DATA

TYPE OF TEST :

Micronucleus test

TEST SYSTEM :

Rodent - hamster Embryo

DOSE/DURATION :

500 mg/L

REFERENCE :

MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 392,61,1997 *** 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 5 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 5 mg(Mo)/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 5 mg(Mo)/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 5 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 5 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 5 mg(Mo)/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg(Mo)/m3 JAN 1993 OEL-DENMARK:TWA 5 mg(Mo)/m3 JAN 1993 OEL-FINLAND:TWA 5 mg(Mo)/m3 JAN 1993 OEL-FRANCE:TWA 5 mg(Mo)/m3;STEL 10 mg(Mo)/m3 JAN 1993 OEL-GERMANY:TWA 5 mg(Mo)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg(Mo)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 5 mg(Mo)/m3 JAN 1993 OEL-SWITZERLAND:TWA 5 mg(Mo)/m3 JAN 1993 OEL-TURKEY:TWA 5 mg(Mo)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg(Mo)/m3;STEL 10 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84549 No. of Facilities: 175 (estimated) No. of Industries: 6 No. of Occupations: 14 No. of Employees: 5269 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84549 No. of Facilities: 1346 (estimated) No. of Industries: 16 No. of Occupations: 28 No. of Employees: 48418 (estimated) No. of Female Employees: 1530 (estimated)

毒理学数据：

本品和钼酸盐有毒，金属钼和二硫化钼毒性较弱。钼中毒引起足痛风，尿酸形成增高，出现关节病和多关节痛。低血压，血压不稳定，神经系统功能紊乱，代谢过程障碍。钼的可溶性化合物，其气溶胶的最大允许浓度为2mg/m3，粉尘为4mg/m3，钼的不溶性化合物为6mg/m3。

生态数据：

对是水稍微有危害的不要让未稀释或大量的产品接触地下水、水道或者污水系统，若无政府许可，勿将材料排入周围环境。

分子结构数据

1、摩尔折射率：无可用的

2、摩尔体积（cm³/mol）：无可用的

3、等张比容（90.2K）：无可用的

4、表面张力（dyne/cm）：无可用的

5、介电常数：无可用的

6、极化率（10^-24cm³）：无可用的

7、单一同位素质量：145.890151 Da

8、标称质量：146 Da

9、平均质量：143.9382 Da

计算化学数据

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:3

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51.2

7.重原子数量:4

8.表面电荷:0

9.复杂度:61.8

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:1

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  三氧化钼红外图谱(IR1)