氟化锂

氟化锂用途

【用途一】
用作干燥剂和助熔剂，也用于光学玻璃的制造
【用途二】
用作铝电解和稀土电解的添加剂、光学玻璃制造、干燥剂、助熔剂等
【用途三】
氟化锂可作为助溶剂广泛用于搪玻璃、铜、铝焊接过程中和盐熔化学工艺中；也被推荐作为航天技术贮存太阳辐射热能的载热剂；还可用于铝的电解和冶金工业中。高纯氟化锂用于制氟化玻璃，也可用于制作分光计和X射线单色仪的棱镜。锂离子电池原料。
【用途四】
用于制造分光计和Ｘ射线单色仪的棱镜，用作增殖反应的载体。

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氟化锂名称

[ CAS 号 ]:
7789-24-4

[ 中文名 ]:
氟化锂

[ 英文名 ]:
Lithium fluoride

[中文别名 ]:

氟化鋰

[英文别名 ]:

Lithiumfluorid
MFCD00011090
Fluorolithium
lithiumfluorure
ntl50
tld100
tld700
EINECS 232-152-0

氟化锂物理化学性质

[ 密度 ]:
2.64 g/mL at 25 °C(lit.)

[ 沸点 ]:
1681 °C

[ 熔点 ]:
845 °C(lit.)

[ 分子式 ]:
FLi

[ 分子量 ]:
25.939

[ 闪点 ]:
1680°C

[ 精确质量 ]:
26.014406

[ 外观性状 ]:
无色或白色固体

[ 折射率 ]:
1.3915

[ 储存条件 ]:
库房通风低温干燥,与食品分开储运

[ 稳定性 ]:
Stable, but hygroscopic. Hydrolyzes in the presence of water to form hydrofluoric acid, which attacks glass - do not store in glass bottles. Incompatible with aqueous solutions, strong acids, strong oxidizing agents.

[ 水溶解性 ]:
0.29 g/100 mL (20 ºC)

氟化锂MSDS

详细MSDS(安全技术说明书)

氟化锂毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OJ6125000

CHEMICAL NAME :: Lithium fluoride

CAS REGISTRY NUMBER :: 7789-24-4

LAST UPDATED :: 199712

DATA ITEMS CITED :: 34

MOLECULAR FORMULA :: F-Li

MOLECULAR WEIGHT :: 25.94

WISWESSER LINE NOTATION :: LI F

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 :: 143 mg/kg

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

REFERENCE :: FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1939- Volume(issue)/page/year: 40,329,1977

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 200 mg/kg

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

REFERENCE :: 85KYAH "Merck Index; an Encyclopedia of Chemicals, Drugs, and Biologicals", 11th ed., Rahway, NJ 07065, Merck & Co., Inc. 1989 Volume(issue)/page/year: 11,871,1989

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 280 mg/kg

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

REFERENCE :: CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849- Volume(issue)/page/year: 124,133,1937 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 198 mg/kg/11D-I

REFERENCE :: FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1939- Volume(issue)/page/year: 40,329,1977 *** 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 TOXICOLOGY REVIEW AMSSAQ Acta Medica Scandinavica, Supplement. (Almqvist & Wiksell, POB 45150, S-10430 Stockholm, Sweden) No.1-730, 1921-88. Volume(issue)/page/year: 400,5,1963 *** 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 0.2 ppm (1 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 - M1010 No. of Facilities: 592 (estimated) No. of Industries: 12 No. of Occupations: 5 No. of Employees: 2853 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1010 No. of Facilities: 390 (estimated) No. of Industries: 17 No. of Occupations: 11 No. of Employees: 3854 (estimated) No. of Female Employees: 46 (estimated)

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氟化锂安全信息

[ 符号 ]:

GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H301-H315-H319-H335

[ 补充危害声明 ]:
Contact with acids liberates very toxic gas.

[ 警示性声明 ]:
Missing Phrase - N15.00950417-P305 + P351 + P338

[ 个人防护装备 ]:
Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
T:Toxic

[ 风险声明 (欧洲) ]:
R23/24/25

[ 安全声明 (欧洲) ]:
S22-S26-S36/37/39-S45

[ 危险品运输编码 ]:
UN 3288 6.1/PG 3

[ WGK德国 ]:
2

[ RTECS号 ]:
OJ6125000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

[ 海关编码 ]:
2826199090

氟化锂制备

1.将固体碳酸锂加入氟化氢溶液中，使之反应析出LiF结晶，经过滤，干燥即得产品。有中和法和复分解法两种方法。工业生产多采用中和法。
中和法是以碳酸锂或氢氧化锂与氢氟酸反应制备氟化锂。其反应式如下：

2.用碳酸锂与氢氟酸反应。

在铂皿中加入40%的氢氟酸，再将纯净的碳酸锂慢慢加入，时有二氧化碳放出，加热将溶液蒸干并强烈灼烧，赶尽CO2和水分，趁热用铂杵将干涸的氟化锂粉碎，装入塑料瓶中保存。

3.采用中和法。碳酸锂或氢氧化锂与氢氟酸反应制得氟化锂，经过滤、干燥制得产品。

4.将99.9%的金属锂溶于电导水中，然后在不断搅拌下，慢慢加入纯氢氟酸，使沉淀慢慢析出：

当溶液由碱性变为酸性时，停止加酸，静置0.5h，抽滤后用不含二氧化碳的电导水洗涤沉淀，然后于300～400℃下灼烧，冷却后即得高纯品。

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氟化锂海关

[ 海关编码 ]: 2826199090

氟化锂文献

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...

Ultrahigh electrical conductivity in solution-sheared polymeric transparent films.

Proc. Natl. Acad. Sci. U. S. A. 112 , 14138-43, (2015)

With consumer electronics transitioning toward flexible products, there is a growing need for high-performance, mechanically robust, and inexpensive transparent conductors (TCs) for optoelectronic dev...

The use of enriched 6Li and 7Li Lif:Mg,Cu,P glass-rod thermoluminescent dosemeters for linear accelerator out-of-field radiation dose measurements.

Radiat. Prot. Dosimetry 150(1) , 22-33, (2012)

(6)LiF:Mg,Cu,P and (7)LiF:Mg,Cu,P glass-rod thermoluminescent dosemeters (TLDs) were used for measurements of out-of-field photon and neutron doses produced by Varian iX linear accelerator. Both TLDs ...

更多文献

氟化锂

氟化锂用途

氟化锂名称

氟化锂物理化学性质

氟化锂MSDS

详细MSDS(安全技术说明书)

氟化锂毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

氟化锂安全信息

氟化锂制备

氟化锂海关

氟化锂文献

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