氟化锂

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 结构与计算化学
  • 表征图谱

氟化锂 基本信息

中文名称:
氟化锂 
中文别名:
氟化锂;
氟化鋰 
英文名称:
Lithium fluoride
英文别名:
Lithium fluoride;
Lithiumfluorid;
Fluorolithium;
tld100;
ntl50;
lithiumfluorure;
tld700 
CAS No.:
7789-24-4
分 子 式:
LiF
分 子 量:
25.94
精确分子量:
26.01440
PSA:
0.00000
MDL:
MFCD00011090
EINECS:
232-152-0
InChI:
InChI=1/FH.Li/h1H;/q;+1/p-1
危险品标志:
T:Toxic
风险术语:
R23/24/25;
安全术语:
S26; S45;
分子结构式:
SDS:
查看

氟化锂 制备方法及用途

制备方法

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。

合成制备方法

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。

用途简介

1.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。 2.在铝电解生产中作电解质组分,可提高电导率和电流效率,从而提高金属生产能力并降低成本,还可以改善碳阳极的润湿性。在陶瓷工业中具有降低燃烧温度和改善抗骤冷骤热性能,用作铝和铝合金焊接的助熔剂组分。高纯氟化锂用于制氟化锂玻璃,也用于制作分光计和X射线单色仪的棱镜。 3.用作波长分析型犡射线荧光光谱仪中的分析晶体。还用作干燥剂、助熔剂。用于搪瓷工业,光学玻璃制造。

用途

1.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。

2.在铝电解生产中作电解质组分,可提高电导率和电流效率,从而提高金属生产能力并降低成本,还可以改善碳阳极的润湿性。在陶瓷工业中具有降低燃烧温度和改善抗骤冷骤热性能,用作铝和铝合金焊接的助熔剂组分。高纯氟化锂用于制氟化锂玻璃,也用于制作分光计和X射线单色仪的棱镜。


3.用作波长分析型犡射线荧光光谱仪中的分析晶体。还用作干燥剂、助熔剂。用于搪瓷工业,光学玻璃制造。

氟化锂 物化性质

外观与性状:
无色或白色固体
密度:
2.64 g/mL at 25 °C(lit.)
熔点:
845 °C(lit.)
沸点:
1681 °C
闪点:
1680°C
水溶解性:
0.29 g/100 mL (20 ºC)
折射率:
1.3915
存储条件/存储方法:
库房通风低温干燥,与食品分开储运
稳定性相关:

1.如果遵照规格使用和储存则不会分解
其它信息:

1.      性状:白色粉末或细小颗粒,为NaCl型的立方晶系结晶。

2.      密度(g/mL 25ºC):2.64

3.      熔点(ºC):842

4.      沸点(ºC,常压):1676

5.      折射率(n20/D):1.3915

6.      闪点(ºC,):1680

7.   饱和蒸气压(kPa,60ºC):0.133

8.   溶解性 :难溶于水:0.29 g/100 mL (20 ºC),不溶于醇,溶于酸。能溶于酸。

氟化锂 安全信息

包装等级:
III
风险类别:
6.1
海关代码:
2826199090
WGK_Germany:
2
德国有关水污染物质的分类清单
危险类别码:
R23/24/25
安全说明:
S22-S26-S36/37/39-S45
RTECS号:
OJ6125000
安全标志:
S22:不要吸入粉尘。
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
S45:出现意外或者感到不适,立刻到医生那里寻求帮助(最好带去产品容器标签)。
:
危险标志:
T:Toxic

氟化锂 毒理性

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)
毒理学数据:

急性毒性:LD50:200 mg/kg(豚鼠经口)。

具刺激性。吸入、摄入或经皮吸收会中毒。大剂量可引起眩晕、虚脱。对肾脏有损害。

生态数据:

对水是稍微危害的,若无政府许可,勿将材料排入周围环境。

氟化锂 分子结构与计算化学数据

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:1

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0

7.重原子数量:2

8.表面电荷:0

9.复杂度: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

氟化锂 表征图谱

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