氟化钙

氟化钙用途

【用途一】
广泛用于化工、冶金、玻璃、搪瓷和水泥等领域
【用途二】
用作冶金助熔剂、脱水和脱氢催化剂，亦用于电子、仪表工业
【用途三】
用于制氢氟酸及氟化物，也用于搪瓷、陶器及冶金熔剂
【用途四】
用于制造光学玻璃、光导纤维、搪瓷、医药。也用作脱水及脱氢反应的催化剂等。
【用途五】
萤石在化学工业上是制取氟和氢氟酸的主要矿物原料，也是生产氟里昂、氟聚合物、含氟精细化学品、人造冰晶石的基础原料。还大量用于冶金、水泥、玻璃和陶瓷等部门。无色透明的大块萤石晶体可用作光学萤石和工艺萤石。
【用途六】
制造氢氟酸，脱水和脱氢反应的催化剂，冶金助熔剂。

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氟化钙名称

[ CAS 号 ]:
7789-75-5

[ 中文名 ]:
氟化钙

[ 英文名 ]:
Calcium fluoride

[中文别名 ]:

萤石

[英文别名 ]:

MFCD00010907
EINECS 232-188-7
Calcium fluoride

氟化钙物理化学性质

[ 密度 ]:
3.18 g/mL at 25 °C(lit.)

[ 沸点 ]:
2500 °C(lit.)

[ 熔点 ]:
1402 °C

[ 分子式 ]:
CaF₂

[ 分子量 ]:
78.075

[ 闪点 ]:
2500°C

[ 精确质量 ]:
77.959396

[ 外观性状 ]:
白色粉末或无色晶体

[ 折射率 ]:
1.434

[ 储存条件 ]:
库房通风低温干燥

[ 稳定性 ]:
Stable. Incompatible with acids.

[ 水溶解性 ]:
INSOLUBLE

氟化钙MSDS

详细MSDS(安全技术说明书)

氟化钙毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EW1760000

CHEMICAL NAME :: Calcium fluoride

CAS REGISTRY NUMBER :: 7789-75-5

LAST UPDATED :: 199712

DATA ITEMS CITED :: 38

MOLECULAR FORMULA :: Ca-F2

MOLECULAR WEIGHT :: 78.08

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4250 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >1500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2638 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: >10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 44 gm/kg/31D-I

TOXIC EFFECTS :: 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

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 3200 mg/kg

SEX/DURATION :: female 9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 67200 mg/kg

SEX/DURATION :: female 1-21 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - other developmental abnormalities

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - rat Ascites tumor

REFERENCE :: 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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氟化钙安全信息

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi:Irritant

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S37/39

[ 危险品运输编码 ]:
3288

[ WGK德国 ]:
1

[ RTECS号 ]:
EW1760000

[ 海关编码 ]:
2529210000

氟化钙制备

1.中和法将氢氧化钙溶于氢氟酸中，然后蒸发、过滤、干燥、粉碎，制得氟化钙成品。其反应方程式如下：

钙镁磷肥副产法将钙镁磷肥副产所得废气用水吸收，过滤，然后加石灰乳中和，加热化合，再经沉降分离、过滤洗涤、脱水、干燥、粉碎，制得氟化钙产品，其反应方程式如下：

2.在固体碳酸钙中加入过量氢氟酸，至刚果红呈酸性，在加热条件下不再溢出二氧化碳，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60-80ºC干燥，并于400-500ºC煅烧3h，粉碎即可。

3.把碳酸钙或氢氧化钙用氢氟酸溶解，将所得溶液蒸发浓缩、过滤、干燥、粉碎即可。或者将钙镁磷肥副产得到的废气用水吸收并过滤，然后加石灰乳中和，加热化合，再经分离、洗涤、脱水、干燥即可。

4.由碳酸钙加过量的氢氟酸可制取氟化钙。100g碳酸钙与100mL的沸水放在聚乙烯杯中，混合成糊状物，向杯中加入40%氢氟酸，同时搅拌，直至不再产生CO2气泡，过滤，将沉淀分离出来，在沉淀上加稀醋酸，至确实无CO2产生，用热水彻底洗去各种杂质，在300℃下干燥即得氟化钙。

5.将10g碳酸钙与5.8克氟氢化铵粉末混合均匀，放在铂皿中，铺成1.3cm厚的薄层，于175℃加热1h，即得氟化钙。如果以氟化铵为原料制备，则称量7.5g，于200℃加热1h，亦可得氟化钙晶体。 6. 开采矿石　后经选矿、浮选而制得。
7.人工合成制氟化钙　将氟硅酸溶液与氢氧化钙在70～75℃温度下进行中和反应而生成氟化钙。
工业上直接采用天然萤石矿粉极为少见，一般均需通过选择各种不同含量的氟化钙精矿后才被采用。其选矿方法的选择主要取决于萤石矿的物性、含量及用户要求而定。开采后的萤石矿，经手选、粉碎、球磨、浮选、浓缩脱水和烘干，即得萤石精矿粉。 8.在固体碳酸钙中加入过量氢氟酸，至刚果红呈酸性： . 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
含 NH ₃ ⁺离子和NO ₃ ^-离子为止。甩干，于60℃下干燥后在400～500℃煅烧2h即可。

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氟化钙海关

[ 海关编码 ]: 2529210000

氟化钙文献

Comparison of the Biological Impacts of the Fluoride Compounds by Graphical Risk Visualization Map Technique.

Biol. Trace Elem. Res. 167 , 84-90, (2015)

Various fluoride compounds are widely used in industry. The present risk assessment study was conducted using a series of inorganic binary fluorides of the type XFn, where X(n) = Na(+), K(+), Li(+), M...

Topical laser application enhances enamel fluoride uptake and tribological properties.

J. Dent. Res. 92(7) , 655-60, (2013)

Topical fluoride treatment prevents dental caries. However, the resulting calcium-fluoride-like deposits are soft and have poor wear resistance; therefore, frequent treatment is required. Lasers quick...

Prevention of enamel demineralization with a novel fluoride strip: enamel surface composition and depth profile.

Sci. Rep. 5 , 13352, (2015)

There is no topically applicable low concentration fluoride delivery device available for caries prevention. This study was aimed to assess the use of a low concentration (1450 ppm) fluoride strip as ...

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氟化钙

氟化钙用途

氟化钙名称

氟化钙物理化学性质

氟化钙MSDS

详细MSDS(安全技术说明书)

氟化钙毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

氟化钙安全信息

氟化钙制备

氟化钙海关

氟化钙文献

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