毒理学数据:
急性毒性：LD50：4250 mg/kg(大鼠经口)。小鼠腹膜内注射LC50：2638.27mg/kg。
对眼和皮肤有刺激性。对黏膜和上呼吸道有刺激作用。摄入后引起腹痛，可能引起死亡。
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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EW1760000
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CHEMICAL NAME :
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Calcium fluoride
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CAS REGISTRY NUMBER :
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7789-75-5
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LAST UPDATED :
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199712
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DATA ITEMS CITED :
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38
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MOLECULAR FORMULA :
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Ca-F2
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MOLECULAR WEIGHT :
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78.08
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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4250 mg/kg
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TOXIC EFFECTS :
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Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intraperitoneal
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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>1500 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intraperitoneal
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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2638 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - guinea pig
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DOSE/DURATION :
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>5 gm/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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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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Intraperitoneal
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SPECIES OBSERVED :
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Mammal - species unspecified
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DOSE/DURATION :
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>10 gm/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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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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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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44 gm/kg/31D-I
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TOXIC EFFECTS :
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Cardiac - EKG changes not diagnostic of specified effects Musculoskeletal - changes in teeth and supporting structures Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases
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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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Intraperitoneal
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DOSE :
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3200 mg/kg
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SEX/DURATION :
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female 9 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
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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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Intraperitoneal
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DOSE :
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67200 mg/kg
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SEX/DURATION :
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female 1-21 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Specific Developmental Abnormalities - other developmental abnormalities
MUTATION DATA
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TYPE OF TEST :
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Cytogenetic analysis
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TEST SYSTEM :
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Rodent - rat Ascites tumor
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REFERENCE :
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GANNA2 Gann. Japanese Journal of Cancer Research. (Tokyo, Japan) V.1-75, 1907-84. For publisher information, see JJCREP. Volume(issue)/page/year: 54,155,1963 *** REVIEWS *** ACGIH TLV-TWA 2.5 mg(F)/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: TLV/BEI,1997 ACGIH TLV-Not classifiable as a human carcinogen 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 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 2.5 mg(F)/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: 3,116,1971 OSHA PEL (Gen Indu):8H TWA 2.5 mg(F)/m3 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 2.5 mg(F)/m3 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 2.5 mg(F)/m3 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 (Fed Cont):8H TWA 2.5 mg(F)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 2.5 mg(F)/m3 JAN 1993 OEL-BELGIUM:TWA 2.5 mg(F)/m3 JAN 1993 OEL-DENMARK:TWA 2.5 mg(F)/m3 JAN 1993 OEL-FINLAND:TWA 2.5 mg(F)/m3 JAN 1993 OEL-FRANCE:TWA 2.5 mg(F)/m3 JAN 1993 OEL-GERMANY:TWA 2.5 mg(F)/m3 JAN 1993 OEL-HUNGARY:TWA 1 mg(F)/m3;STEL 2 mg(F)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 2.5 mg(F)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 2.5 mg(F)/m3 JAN 1993 OEL-POLAND:TWA 1 mg(F)/m3 JAN 1993 OEL-RUSSIA:STEL 0.5 ppm (2.5 mg/m3) JAN 1993 OEL-SWEDEN:TWA 2 mg(F)/m3 JAN 1993 OEL-SWITZERLAND:TWA 1.8 ppm (1.5 mg(F)/m3);STEL 9.0 ppm JAN 1993 OEL-THAILAND:TWA 2.5 mg(F)/m3 JAN 1993 OEL-TURKEY:TWA 2.5 mg(F)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 2.5 mg(F)/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 FLUORIDES, INORGANIC-air:10H TWA 2.5 mg(F)/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 - M0579 No. of Facilities: 840 (estimated) No. of Industries: 17 No. of Occupations: 22 No. of Employees: 17561 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0579 No. of Facilities: 25299 (estimated) No. of Industries: 187 No. of Occupations: 76 No. of Employees: 344071 (estimated) No. of Female Employees: 3195 (estimated)
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在加热条件下不再逸出
CO
2 ，反应结束，静置，分出沉淀，用水倾析洗涤2～3次至酸性合格。过滤后在60～80℃干燥，并于400～500℃煅烧3h，粉碎即可。 9. 将30%左右的硝酸钙溶液加热，然后加入30%左右的氟化铵溶液 （ 稍过量） ，进行反应：
当沉淀完全后，将混合物在60～70℃下加热1h，静置，分去上层清液，用水倾析沉淀２～３次，过滤，在60～80℃下干燥，并于400～500℃煅烧3h，冷却后研磨成粉状，再用热水洗涤至不