CAS 1314-20-1 MFCD00036277-THORIUM OXIDE Thorium(IV) TAO{mole}

THORIUM OXIDE Thorium(IV)

CAS 1314-20-1 MFCD00036277

化学结构图

SMILES: O=[Th]=O

化学属性

Mol. Formula	O2Th
Mol. Weight	264.00
Melting Point	3050°C
Boiling Point	4400°C
Density	9,86 g/cm3
Solubility	不溶于水、碱，溶于酸。

别名和识别编码

Chemical Name	oxide (99.99%-Th) PURATREM
Synonym	方钍石,放射性氧化钍氧化釷钍氧 99.-th)spectro Thorotrast Thorium oxide (ThO2) 硝酸钍水合物 ThO₂ THORIUM (IV) OXIDE Thorium(Ⅳ)oxide Thorium(IV)bisoxide thoriumoxide(tho2) Thorium anhydride thoriumanhydride Thorium(IV) oxide 二氧化钍 Thortrast Umbrathor ThO2 THORIUM OXIDE Thorium(IV) Thorium(IV)oxide(99.99%-Th)PURATREM thorium (IV) oxide 氧化钍,钍土 thorianite THORIUM (IV) OXIDE (99.-TH) PURATREM Thorium(IV)dioxide Thorium Oxide 氧化钍 Thorium dioxide Thoria
MDL Number	MFCD00036277
PubChem Substance ID	24889185
EC Number	215-225-1
CAS Number	1314-20-1
Chemical Name Translation	Thorium(IV)
Merck Number	13,9455

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安全信息

WGK Germany3

GHS Symbol

Precautionary statements

P301+P310
P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
P201 Obtain special instructions before use. 使用前获取专门指示。

Hazard statements

H350 May cause cancer 可能致癌
H331 Toxic if inhaled 吸入中毒
H311 Toxic in contact with skin 皮肤接触中毒
H301 Toxic if swallowed 吞食有毒
H373 May causes damage to organs through prolonged or repeated exposure 长期或频繁接触可能会损伤器官

Signal word Danger

UN Number UN 2910 7

Hazard Codes T,R

Safety Statements

S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时，立即求医（可能时出示标签）；
S53 Avoid exposure - obtain special instructions before use 避免接触，使用前获得特别指示说明；

Risk Statements

R33 Danger of cumulative effects 有累积作用的危险
R45 May cause cancer 可能致癌
R23/24/25 Toxic by inhalation, in contact with skin and if swallowed 吸入，皮肤接触及吞食都有毒

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 10 gm/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Liver - tumors
   Blood - tumors
REFERENCE :
   BJCAAI British Journal of Cancer.  (Macmillan Press Ltd., Houndmills,
   Basingstoke, Hants. RG21 2XS, U

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TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 10 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Liver - tumors
REFERENCE :
   BJCAAI British Journal of Cancer.  (Macmillan Press Ltd., Houndmills,
   Basingstoke, Hants. RG21 2XS, UK)  V.1-    1947-  Volume(issue)/page/year:
   9,253,1955

TYPE OF T

TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Intraarterial
SPECIES OBSERVED        : Human - man
DOSE/DURATION           : 1190 mg/kg
TOXIC EFFECTS :
   Tumorigenic - Carcinogenic by RTECS criteria
   Liver - tumors
   Blood - lymphoma, including Hodgkin's disease
REFERENCE :
   APMIAL Acta Pathologica et Microbiologica Scandinavica.  (Copenhagen,
   Denmark)  V.1-77, 1924-69.  For publisher information, see ACPADQ.
   Volume(issue)/page/year: 53,147,1961

TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 3600 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Liver - tumors
   Blood - tumors
REFERENCE :
   PAMIAD Pathologica et Microbiologia.  (Basel, Switzerland)  V.23-43,
   1960-75.  For publisher information, see ECEBDI.  Volume(issue)/page/year:
   25,27,1962

RTECSXO6950000

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intratracheal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >1140 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

其他信息

外观性质:白色结晶粉末。
MOL 文件:1314-20-1.mol
毒性:放射性物质主要通过呼吸空气、饮水、食物和皮肤伤口进入体内造成内照射。生产场所空气中铀、钍、镭粉尘，通过呼吸道进人人体，还可通过消化道或破损的皮肤进入人体，造成对人体的内照射。铀、钍粉尘最大容许浓度0.02 mg/m 3 ，可溶性天然铀日吸入量＜2.5 mg。工作人员的体表、衣物及工作场所的设备、墙壁、地面的表面污染水平，按我国“放射防护规定”执行。稀土生产中受天然铀和钍放射性污染的地面和设备表面，需常用水冲洗，手与人体表面以及劳保用品可用普通肥皂、洗衣粉洗涤。结合较牢的表面污染，可先用肥皂，去污粉清洗，后用专门的洗涤剂进行清洗。生产人员工作时应戴口罩、防护手套及全身防护器具如工作服、帽、鞋、围裙、套袖、护目镜等。
RTECS号:XO6950000
用途:用于制造高温陶瓷、原子能燃料、白炽灯、电子管阴极、电弧熔融用电极、光学玻璃。用作耐火材料、催化剂等。
生产方法:参考标准指标名称@指标二氧化钍(ThO2)/%≥@99.5 氧化铈(CeO2)/%≤@合格铁(Fe)/%≤@0.005 重金属(以Pb计)/%≤@0.005 氧化铝(A12O3)/%≤@0.05 氧化钛(TiO2)/%≤@0.05 二氧化硅(Si02)/%≤@0.01 碳酸盐(CO3 2- )/%≤@合格灼烧减量/%≤@0.1
参考质量标准:参考标准指标名称指标氢氧化钍[Th(OH)4]/%≥ 98 稀土(Re2O3) 合格氧化铁(Fe2O3)/%≤ 0.001 氧化铅(PbO)/%≤ 0.001 氧化钛(TiO2)/%≤ 0.001 硫酸根(SO 2- )/%≤ 0.01 硝酸根(NO3 - )/%≤ 0.08 水溶解试验合格