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八氧化三铀

八氧化三铀名称

[ CAS 号 ]:
1344-59-8

[ 中文名 ]:
八氧化三铀

[ 英文名 ]:
uranium(v,vi) oxide

[英文别名 ]:

uraniumoxide-protoxide
triuraniumoctoxide
uraniumoctoxide
uraniumoctaoxide
uranous-uranicoxide
EINECS 215-702-4
URANIUM OXIDE
triuraniumoctaoxide
uraniumoxide(u3o8)

八氧化三铀物理化学性质

[ 密度 ]:
8.3 g/cm3

[ 熔点 ]:
1300ºC (dec.)

[ 分子式 ]:
O₈U₃

[ 分子量 ]:
842.08200

[ 精确质量 ]:
842.11200

[ PSA ]:
128.72000

[ 外观性状 ]:
green-black orthorhombic crystals

八氧化三铀毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YR4900000

CHEMICAL NAME :: Uranium oxide

CAS REGISTRY NUMBER :: 1344-59-8

LAST UPDATED :: 199701

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: O8-U3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >4 gm/kg

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >110 mg/m3/1H

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >2 gm/kg

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >110 mg/m3/1H

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 140 mg/kg

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 mg/m3/4H/17W-I

TOXIC EFFECTS :: Liver - liver function tests impaired Kidney, Ureter, Bladder - other changes in urine composition Blood - changes in leukocyte (WBC) count

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(2),41,1975

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八氧化三铀安全信息

[ 危险品运输编码 ]:
UN 2910

[ 危险类别 ]:
7

八氧化三铀制备

在空气中将四价铀的硝酸盐、草酸盐、过氧化物、三铀酸盐等加热到700～800℃时，都可制得氧化铀(V,VI)。

制法取精制的三铀酸铵置于大蒸发皿中，在空气中加热至约800℃ 1～2小时，则盐将完全分解而制得粉末状的氧化铀(V,VI)。在此制备实验中温度是关键因素。如果加热至300～500℃时，盐几乎全部分解而转化为氧化物β-UO₃(若加热过氧化物，则生成α-UO₃或UO₂_.9，若是硝酸盐则生成β或γ-UO₃)。如果在800℃以上长时间加热，则会逐渐失去氧而转变为非整比组成的U₃O_8-x，所以必须注意控制好热分解时的温度条件。