八氧化三铀

密度：

8.3 g/cm3

熔点：

1300ºC (dec.)

稳定性相关：

氧化铀(V,VI)为黑褐色粉末，其颜色、密度会因开始时所用的原料的种类及加热条件而异。可溶于稀酸。氧化铀(V,VI)为斜方晶系的晶体，a＝6.716A（1A=0.1nm，下同），b＝11.960A、c=4.1469A。在250～500℃发生从α相转变到β相(斜方晶系，a=7.069A、b=11.445A、c=8.303A）的相变，但是转变点因O/U的组成比不同而有敏感的变化。

风险类别：

7

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