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硝酸钍水合物

硝酸钍水合物用途

用于汽灯纱罩、电子工业真空管、耐火材料等，亦用于生产二氧化钍、金属钍等。

硝酸钍水合物名称

[ CAS 号 ]:
13823-29-5

[ 中文名 ]:
硝酸钍

[ 英文名 ]:
THORIUM NITRATE HYDRATE

[中文别名 ]:

硝酸钍水合物

[英文别名 ]:

thorium nitrate hydrate
EINECS 237-514-1
MFCD00148855

硝酸钍水合物物理化学性质

[ 沸点 ]:
83ºC at 760 mmHg

[ 分子式 ]:
N₄O₁₂Th

[ 分子量 ]:
480.05800

[ 精确质量 ]:
479.98900

[ PSA ]:
275.52000

[ LogP ]:
1.13640

[ 外观性状 ]:
白色固体

[ 储存条件 ]:
库房通风低温干燥,与易燃物、可燃物、危险品分开存放

[ 稳定性 ]:
Stable. Deliquescent. Weakly radioactive (radioactivity 3300 Bq/g). Incompatible with reducing agents.

硝酸钍水合物MSDS

详细MSDS(安全技术说明书)

硝酸钍水合物毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XO6825000

CHEMICAL NAME :: Thorium(IV), nitrate

CAS REGISTRY NUMBER :: 13823-29-5

LAST UPDATED :: 199701

DATA ITEMS CITED :: 13

MOLECULAR FORMULA :: N4-O12.Th

MOLECULAR WEIGHT :: 480.04

WISWESSER LINE NOTATION :: TH N-O3*4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 60 mg/kg

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

REFERENCE :: EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep. Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 47600 ug/kg

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

REFERENCE :: EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep. Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1760 mg/kg

TOXIC EFFECTS :: Gastrointestinal - ulceration or bleeding from small intestine

REFERENCE :: CNRMAW Canadian Journal of Research, Section E, Medical Sciences. (Ottawa, Ont., Canada) V.22-28, 1944-50. For publisher information, see CJBIAE. Volume(issue)/page/year: 26,303,1948

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 45 mg/kg

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

REFERENCE :: EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep. Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 8400 ug/kg

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

REFERENCE :: AJPHAP American Journal of Physiology. (American Physiological Soc., 9650 Rockville Pike, Bethesda, MD 20814) V.1- 1898- Volume(issue)/page/year: 18,426,1907

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 500 mg/kg

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

REFERENCE :: AJPHAP American Journal of Physiology. (American Physiological Soc., 9650 Rockville Pike, Bethesda, MD 20814) V.1- 1898- Volume(issue)/page/year: 18,426,1907

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 57 mg/kg

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

REFERENCE :: EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep. Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 44170 ug/kg

SEX/DURATION :: male 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct

REFERENCE :: JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot, POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960- Volume(issue)/page/year: 7,21,1964

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intratesticular

DOSE :: 44170 ug/kg

SEX/DURATION :: male 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

REFERENCE :: JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot, POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960- Volume(issue)/page/year: 7,21,1964

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 1694 mg/kg

SEX/DURATION :: male 7 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

REFERENCE :: ANDRDQ Andrologia. (Grosse Verlag GmbH, Kurfuerstenstr. 112-113, D-1000 Berlin 30, Fed. Rep. Ger.) V.6- 1974- Volume(issue)/page/year: 15,40,1983 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83382 No. of Facilities: 235 (estimated) No. of Industries: 8 No. of Occupations: 10 No. of Employees: 1333 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83382 No. of Facilities: 292 (estimated) No. of Industries: 10 No. of Occupations: 10 No. of Employees: 2989 (estimated) No. of Female Employees: 567 (estimated)

硝酸钍水合物安全信息

[ 危害码 (欧洲) ]:
O:Oxidizingagent;Xn:Harmful;

[ 风险声明 (欧洲) ]:
R8;R22;R33;R36/37/38

[ 安全声明 (欧洲) ]:
S36/37/39-S45

[ 危险品运输编码 ]:
2915

[ RTECS号 ]:
XO6825000

[ 危险类别 ]:
7

硝酸钍水合物制备

独居石碱溶饼硝酸法：独居石精矿与50%氢氧化钠于140℃下分解反应5h,碱:矿为1.3(质量比),后用热水稀释反应物，并在70℃下保温陈化，经分离得独居石碱溶饼。将碱溶饼用硝酸全溶，用30%磷酸三丁酯(TBP)萃取铀钍，水相为硝酸稀土溶液，可用于提取稀土。铀钍进入有机相，用纯水反萃得铀钍反萃液，经浓缩后用6%的磷酸三丁酯萃取铀，用40%TBP煤油液萃取钍，再经反萃、浓缩、结晶，制得硝酸钍。其反应式如下：