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1345-13-7

1345-13-7结构式
1345-13-7结构式

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中文名 三氧化二铈
英文名 cerium oxide
英文别名 EINECS 215-718-1
Dicerium trioxide
密度 7.132
熔点 2600ºC
分子式 Ce2O3
分子量 328.23000
精确质量 327.79600
PSA 43.37000
外观性状 金色-黄色固体
稳定性

在空气中不稳定,易自燃。具有稀土三氧化二物A型结构,六方结构,a=3.880A,c=6.057A。

水溶解性 insoluble H2O; soluble H2SO4; insoluble HCl [CRC10]
更多

1.性状:金黄~白色固体。

2.密度(g/cm3):6.86 。

3.熔点(℃):2210(1692℃分解).

4.沸点(℃):3730。

5.溶解度:难溶于水、盐酸,可溶于硫酸,不易溶于无机酸。

CHEMICAL IDENTIFICATION

RTECS NUMBER :
FK6657000
CHEMICAL NAME :
Cerium trioxide
CAS REGISTRY NUMBER :
1345-13-7
LAST UPDATED :
199701
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
Ce2-O3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
475 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,33,1982 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2042 No. of Facilities: 473 (estimated) No. of Industries: 7 No. of Occupations: 8 No. of Employees: 19715 (estimated) No. of Female Employees: 10325 (estimated)

海关编码 2846101000

碳粉和CeO2在1250℃下在CO气氛中反应。

海关编码 2846101000