硫酸钡

外观与性状：

白色粉末

密度：

4.5

熔点：

1580ºC

沸点：

330ºC at 760 mmHg

水溶解性：

0.0022 g/L (50 °C)

存储条件/存储方法：

通风低温干燥,与铝和钾分开存放

稳定性相关：

受高热分解产生有毒的硫化物烟气。

避免接触氧化物。几乎不溶于水、乙醇和酸。溶于热浓硫酸中，干燥时易结块。600 ℃时用碳可还原成硫化钡。在900～1000℃时可用氢气还原。
工作人员应做好防护，工作场所应有良好的通风条件。若不慎触及皮肤和眼睛，应立即用流动的清水洗涤。

具弱碱性，与碳共热被还原成硫化钡，与硫化氢气体接触不发生颜色变化。

超细硫酸钡是具有极高分散性的沉淀硫酸钡。溶于热硫酸，不溶于水、醇及其他溶剂。具有粒径分布范围狭窄、分散性好、化学惰性强，稳定性好，耐酸碱，硬度适中，高相对密度，高白度，能吸收有害射线等优点，是一种具有环保功能的材料。

其它信息：

1.       性状： 斜方晶系，晶体多呈板状、短柱状，一般呈致密块状、板状、柱状产出。晶体无色透明，一般呈白色、灰白、灰色、浅黄、淡红、浅蓝、棕褐等色。玻璃光泽，断口珍珠光泽，条痕白色。

2.       密度（g/mL,25/4℃）：4.5

3.       熔点（ºC）：1350

4.       沸点（ºC,常压）：1580

5.    溶解性：溶于热的浓硫酸，几乎不溶于水、乙醇和稀酸。

海关代码：

2833270000

危险类别码：

R20/21/22

安全说明：

22-24/25-36-26

RTECS号：

CR0600000

安全标志：

S24/25:防止皮肤和眼睛接触。

危险标志：

Xn

CHEMICAL IDENTIFICATION

RTECS NUMBER :

CR0600000

CHEMICAL NAME :

Barium sulfate

CAS REGISTRY NUMBER :

7727-43-7

LAST UPDATED :

199712

DATA ITEMS CITED :

24

MOLECULAR FORMULA :

O4-S.Ba

MOLECULAR WEIGHT :

233.40

WISWESSER LINE NOTATION :

.BA..S-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD - Lethal dose

ROUTE OF EXPOSURE :

Intratracheal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

>600 uL/kg

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intrapleural

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

200 mg/kg

TOXIC EFFECTS :

Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors

MUTATION DATA

TEST SYSTEM :

Rodent - mouse

REFERENCE :

GWZHEW Gongye Weisheng Yu Zhiyebing. Industrial Health and Occupational Diseases. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1973- Volume(issue)/page/year: 12,77,1986 *** REVIEWS *** ACGIH TLV-TWA 10 mg/m3, Inhalable particulate DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW 31BYAP "Experimental Lung Cancer: Carcinogenesis and Bioassays, International Symposium, 1974," Karbe, E., and J.F. Park, eds., Springer-Verlag New York, Inc., 1974 Volume(issue)/page/year: -,94,1974 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 mg(Ba)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,21,1971 OSHA PEL (Gen Indu):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Gen Indu):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Construc):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Shipyard):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 10 mg/m3 JAN 1993 OEL-BELGIUM:TWA 10 mg/m3 (resp. dust) JAN 1993 OEL-UNITED KINGDOM:TWA 2 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO BARIUM SULFATE, respirable fraction-air:10H TWA 5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO BARIUM SULFATE, total dust-air:10H TWA 10 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80611 No. of Facilities: 18620 (estimated) No. of Industries: 173 No. of Occupations: 104 No. of Employees: 188781 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80611 No. of Facilities: 25446 (estimated) No. of Industries: 200 No. of Occupations: 133 No. of Employees: 363169 (estimated) No. of Female Employees: 96327 (estimated)

毒理学数据：

吸入后可引起胸部紧束感、胸痛、咳嗽等。对眼睛有刺激性。长期吸入可致钡尘肺。
能灼烧皮肤，有脱发作用。生产中应注意做好防护，不可直接与人体接触。

生态数据：

通常来说对水是不危害的，若无政府许可，勿将材料排入周围环境。

计算化学数据

1.疏水参数计算参考值（XlogP）:无

2.氢键供体数量:0

3.氢键受体数量:4

4.可旋转化学键数量:0

5.互变异构体数量:无

6.拓扑分子极性表面积88.6

7.重原子数量:6

8.表面电荷:0

9.复杂度:62.2

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:2

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  硫酸钡红外图谱(IR1)