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氢化锂

氢化锂用途

【用途一】
用作干燥剂、氢气发生剂和有机合成还原剂
【用途二】
军事上用作氢气发生来源。有机合成用作还原剂。
【用途三】
在有机合成中，用作缩合剂、还原剂、烷基化试剂、克莱逊氏试剂，也可用作干燥剂。

氢化锂名称

[ CAS 号 ]:
7580-67-8

[ 中文名 ]:
氢化锂

[ 英文名 ]:
Lithium hydride

[英文别名 ]:

EINECS 231-484-3
MFCD00011074
LiH
hydride lithium
Lithium hydride

氢化锂物理化学性质

[ 密度 ]:
0.82

[ 沸点 ]:
850(分解)

[ 熔点 ]:
680ºC

[ 分子式 ]:
LiH

[ 分子量 ]:
7.949

[ 精确质量 ]:
8.023829

[ 外观性状 ]:
白色或带蓝色的透明块状或粉末

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、卤素、强酸分开存放

[ 水溶解性 ]:
reacts

氢化锂MSDS

氢化锂毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OJ6300000

CHEMICAL NAME :: Lithium hydride

CAS REGISTRY NUMBER :: 7580-67-8

LAST UPDATED :: 199806

DATA ITEMS CITED :: 27

MOLECULAR FORMULA :: H-Li

MOLECULAR WEIGHT :: 7.95

WISWESSER LINE NOTATION :: LI H

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 mg/m3/4H

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - cough

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,468,1956 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 mg/m3/4H/1W-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Skin and Appendages - dermatitis, other (after systemic exposure)

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,468,1956

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5 mg/m3/4H/1W-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Skin and Appendages - dermatitis, other (after systemic exposure)

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,468,1956

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5 mg/m3/4H/1W-I

TOXIC EFFECTS :: Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Sense Organs and Special Senses (Eye) - effect, not otherwise specified Skin and Appendages - dermatitis, other (after systemic exposure)

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,468,1956

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 5 mg/m3/4H-I

REFERENCE :: AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 14,468,1956 *** REVIEWS *** ACGIH TLV-TWA 0.025 mg/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 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.025 mg/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: 3,147,1971 OSHA PEL (Gen Indu):8H TWA 0.025 mg/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 0.025 mg/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 0.025 mg/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 0.025 mg/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 0.025 mg/m3 JAN 1993 OEL-BELGIUM:TWA 0.025 mg/m3 JAN 1993 OEL-DENMARK:TWA 0.025 mg/m3 JAN 1993 OEL-FINLAND:TWA 0.025 mg/m3;STEL 0.075 mg/m3 JAN 1993 OEL-FRANCE:TWA 0.025 mg/m3 JAN 1993 OEL-GERMANY:TWA 0.025 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.025 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.025 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.025 mg/m3 JAN 1993 OEL-TURKEY:TWA 0.025 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.025 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 LITHIUM HYDRIDE-air:10H TWA 0.025 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 - 43115 No. of Facilities: 11 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 11 (estimated)

氢化锂安全信息

[ 符号 ]:

GHS02, GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H260-H301-H314

[ 补充危害声明 ]:
Reacts violently with water.

[ 警示性声明 ]:
P223-P231 + P232-P280-P301 + P310-P370 + P378-P422

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R14/15;R25;R34

[ 安全声明 (欧洲) ]:
S25-S36/37/39-S45-S7/8

[ 危险品运输编码 ]:
UN 1414/2805

[ WGK德国 ]:
2

[ RTECS号 ]:
OJ6300000

[ 包装等级 ]:
I

[ 危险类别 ]:
4.3

氢化锂合成路线

氢化锂上下游产品

氢化锂上游产品

氢化锂下游产品

氢化锂制备

在干燥箱中把锂放入用不锈钢制成反应管中，加盖并抽真空，再通入氢气，在氢气压为1个大气压，温度为725 ℃下保持15 h之后，在继续通氢的情况下，进行冷却，从干燥箱中取出反应物，装入氮封的瓶里，保存于暗处，制得氢化锂纯度最高为99.8％。由纯净的金属锂和纯净的氢气可以制得纯度为99.8%的氢化锂。氰化锂的制备装置如图I-7所示：

图I-7 制备碱金属氰化物的装置

在充满氩气的干燥箱中，将表面已被刮得很光洁的锂装在一个用电解铁制成的反应舟中，为了避免锂在熔融时会扩散透过铁，将反应舟装入一个电解铁制成的保护管中，再把保护管装进无缝钢管2中。通入氢气并升温至700℃，约15h，使反应进行完全。所得氢化锂在此温度为液态（熔点680℃），冷却后LiH为无色透明的粗粒结晶。俟其完全冷却之后，在CO2保护气氛中取出LiH，装入氮封的瓶里，保存于暗处。

氢化锂文献

Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).

J. Sci. Ind. Res. 65(10) , 808, (2006)

Drug-induced liver injury (DILI) is a significant concern in drug development due to the poor concordance between preclinical and clinical findings of liver toxicity. We hypothesized that the DILI typ...

Nanoarchitecture of Protective Coatings for Air Sensitive Metal Hydrides Dobbins T, et. al.

Material Matters 2(2) , 19, (2007)

Spectroscopy and structure of the lithium hydride diatomic molecules and ions. Stwalley WC and Zemke WT

J. Phys. Chem. 22(1) , 87-112, (1993)

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氢化锂