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。
生态学数据:
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。
CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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CR0600000
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CHEMICAL NAME :
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Barium sulfate
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CAS REGISTRY NUMBER :
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7727-43-7
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LAST UPDATED :
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199712
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DATA ITEMS CITED :
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24
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MOLECULAR FORMULA :
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O4-S.Ba
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MOLECULAR WEIGHT :
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233.40
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WISWESSER LINE NOTATION :
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.BA..S-O4
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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LD - Lethal dose
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ROUTE OF EXPOSURE :
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Intratracheal
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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>600 uL/kg
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TOXIC EFFECTS :
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Lungs, Thorax, or Respiration - other changes
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Intrapleural
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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200 mg/kg
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TOXIC EFFECTS :
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Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors
MUTATION DATA
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TEST SYSTEM :
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Rodent - mouse
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REFERENCE :
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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)
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将原料粉加入反应槽后，加入硫酸和铝粉同时加热，进行还原漂白。反应式如下：
铝粉在酸溶液中置换出氢气，而氢气使得Fe
3+还原为Fe
2+，从而发生漂白作用。反应式为：
经过初步漂白后，可溶性盐通过水洗而除去。重晶石经过滤、打浆、烘干后进行煅烧，以除去炭质。通过加有刚玉球的振动磨磨成超细粉后，再次进行漂白、水洗、过滤、干燥，用万能粉碎机将结块产品粉碎后即可。