Lithium hydride

7.95

8.023829

231-484-3

68KF447EX3

0813

1414|2805

Gray cubic crystals or powder, hygroscopic|White translucent, crystalline mass or powder; commercial product is light bluish-gray due to minute amount of colloidally dispersed lithium|Cubic crystals, darkens rapidly on exposure to light

28500090

0

0.00000

White to gray powder

0.76-0.77 g/cm³

680 °C

Decomposes

Solubility in water: reaction.;Slightly soluble in dimethylformamide. Insoluble in acetone, benzene and toluene.

water-free area

Vapour pressure at 20°C: negligible

Oral-rat LD50: 77.5 mg/kg; inhalation-rat LCL0: 10 mg/m3/ 4 hours

Hydrogen is combustible when exposed to water or humid air

Odorless ...

Decomp pressure nil at 25 °C; 0.7 mm at 500 °C; 760 mm at approximately 850 °C; decomposed by water, forming hydrogen and lithium hydroxide|Heat of solution: -7200 Btu/lb|Standard molar enthalpy of formation at 298.15 K: -90.5 kJ/mol; molar heat capacity at constant pressure and 298.15 K: 27.9 J/mol K|Enthalpy of fusion: 22.59 kJ/mol|For more Other Experimental Properties (Complete) data for LITHIUM HYDRIDE (6 total), please visit the HSDB record page.

Burns readily in air, particularly if powdered. May ignite spontaneously in moist air. Reacts rapidly with water to form caustic lithium hydroxide and hydrogen [Bretherick 1979 p. 107].

Metal Hydrides, Metal Alkyls, Metal Aryls, and Silanes

Strong Reducing Agent

LITHIUM HYDRIDE is a strong reducing agent. Th esolid may decompose violently in contact with most oxidizing materials. It reacts exothermically with water to form caustic lithium hydroxide and hydrogen gas; the hydrogen may ignite. May ignite spontaneously in moist air. Mixtures with liquid oxygen are explosive. Ignites on contact with dinitrogen oxide [Mellor, 1967, vol. 8, suppl. 2.2, p. 214].

392 °F (USCG, 1999)|Ignition temperature: 392 °F.|200 °C

Combustible Solid that can form airborne dust clouds which may explode on contact with flame, heat, or oxidizers.

Dust explosion possible if in powder or granular form, mixed with air.

I

4.3

UN 1414 4.3/PG 1

2

14-34-25-14/15

16-26-27-36/37/39-7/8-45-25

OJ6300000

F,C,T

The warehouse is ventilated at low temperature and dry; stored separately from oxidants, halogens and strong acids

It can explode when exposed to water or humid air

Darkens rapidly on exposure to light.

P223-P231 + P232-P280-P301 + P310-P370 + P378-P422

H260-H301-H314

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Reacts with the lower alcohols, carboxylic acids, chlorine and ammonia at 400 °C to liberate hydrogen.|May ignite combustible materials if they are damp.|Spontaneous ignition occurs when nitrous oxide and lithium hydride are mixed. ... Violently decomposes with water.|Strong oxidizers, halogenated hydrocarbons, acids, water [Note: May ignite SPONTANEOUSLY in air and may reignite after fire is extinguished. Reacts with water to form hydrogen & lithium hydroxide].|For more Hazardous Reactivities and Incompatibilities (Complete) data for LITHIUM HYDRIDE (6 total), please visit the HSDB record page.

In a fire, irritating alkali fumes may form. Lithium hydride can form airborne dust clouds which may explode on contact with flame, heat, or oxidizing materials. Additionally, spontaneous ignition occurs when nitrous oxide and lithium hydride are mixed. Lithium hydride also forms explosive mixtures with liquid oxygen. Contact with heat, moisture or acid causes exothermic reaction and evolution of hydrogen as well as lithium hydroxide. Incompatible with air and moisture, nitrous oxide, strong oxidizers, and liquid oxygen. Lithium hydride may ignite spontaneously in air and should be maintained and handled out of contact with air and moisture. Any contact with nitrous oxide; airborne powders may ignite upon reaching moisture. (EPA, 1998)|Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Many reactions may cause fire or explosion. See Chemical dangers Finely dispersed particles form explosive mixtures in air.|Flammable - 2nd degree, Reactive - 2nd degree

|Danger|H260 (98.67%): In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, emit flammable gases]|P223, P231+P232, P260, P264, P270, P280, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P335+P334, P363, P370+P378, P402+P404, P405, and P501|Aggregated GHS information provided by 75 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H260: In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, emit flammable gases]|P201, P202, P223, P231+P232, P260, P261, P264, P270, P271, P280, P281, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P308+P313, P309+P311, P310, P311, P321, P335+P334, P363, P370+P378, P402+P404, P403+P233, P405, and P501|P201, P202, P223, P231+P232, P260, P264, P270, P271, P280, P281, P284, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P308+P313, P309+P311, P310, P320, P321, P330, P335+P334, P363, P370+P378, P402+P404, P403+P233, P405, and P501

Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. DO NOT GET WATER on spilled substance or inside containers. SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Dike for later disposal; do not apply water unless directed to do so. POWDER SPILL: Cover powder spill with plastic sheet or tarp to minimize spreading and keep powder dry. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2016)

Skin: Wear appropriate personal protective clothing to prevent skin contact. Eyes: Wear appropriate eye protection to prevent eye contact. Wash skin: Brush (DO NOT WASH) Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced. Change: Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premise. Provide: Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided (when concentration is >0.5 mg/m3) within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2016)|Employees should be provided with and required to use impervious clothing ...|Goggles or face shield; rubberized gloves; flame-proof outer clothing; respirator; high boots or shoes.|Wear appropriate personal protective clothing to prevent skin contact.|Wear appropriate eye protection to prevent eye contact.|For more Personal Protective Equipment (PPE) (Complete) data for LITHIUM HYDRIDE (12 total), please visit the HSDB record page.|(See protection codes)

Lithium hydride is a flammable solid and is dangerous when wet.|... Flammable solid.

/Lithium hydride/ dust/air mixtures may explode.|Mixtures of /lithium hydride/ powder with liquid oxygen are detonatable explosives of greater power than TNT.

Use approved Class D extinguishers or smother with dry sand, dry clay, or dry ground limestone. Do not use carbon dioxide or halogenated extinguishing agents. Do NOT use water. Violent reaction may result.|A fire once started cannot be extinguished by ordinary methods; smothering by dolomite powder is recommended.|Fires should be extinguished with dry chemicals; "Lith-X," the trademark for a graphite-base dry chemical extinguishing agent, is available for such fires.|Dry nitrogen, graphite, or lithium chloride. Never use water, foam, halogenated hydrocarbons, soda acid, dry chemical, or carbon dioxide.|If material on fire or involved in fire: Do not use water. Do not use dry chemical or carbon dioxide. Use graphite, soda ash or powdered sodium chloride. /Lithium hydride; lithium hydride in fused solid form/

May decompose when hot to form flammable hydrogen gas. Reacts violently with water to produce hydrogen, which may explode in air.|May ignite spontaneously in air and may reignite after fire is extinguished. Reacts with water to form hydrogen and lithium hydroxide.|Corrosive ... Water reactive ... Evolves hydrogen and ignites on contact with water.|The principal physical property of lithium hydrides important to their safe handling is the large amount of hydrogen contained in a relatively small volume. Two g of lithium hydride treated with water will liberate 200 cu ft of hydrogen. ... In the handling of lithium hydrides, water in any form must be eliminated. ... Chief hazards in handling are dust production, static electricity, and fire.

Wearing butyl rubber gloves, fireproof clothing, face shield and goggles, cover spill with sand. Transfer mixture into a dry plastic bag filled in advance with an inert gas. Carry outdoors for incineration. After burning (if not in a proper incinerator), sprinkle water on the residue for complete destruction. Alternatively, in the fume hood, add butanol slowly to the solid mixture until the reaction ceases. Then carefully add water until all the hydride is destroyed. Let stand until solid settles.|Keep water away from release. Shovel into suitable dry container.

SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.|Lithium hydride is pyrophoric and should be maintained and handled out of contact with air and moisture.|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|The worker should immediately brush (DO NOT WASH) the skin when it becomes contaminated.|For more Preventive Measures (Complete) data for LITHIUM HYDRIDE (10 total), please visit the HSDB record page.

/GUIDE 138 SUBSTANCES - WATER-REACTIVE (Emitting Flammable Gases)/ Fire or Explosion: Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard. /Lithium hydride; Lithium hydride, fused solid/|/GUIDE 138 SUBSTANCES - WATER-REACTIVE (Emitting Flammable Gases)/ Health: Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. /Lithium hydride; Lithium hydride, fused solid/|/GUIDE 138 SUBSTANCES - WATER-REACTIVE (Emitting Flammable Gases)/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate the area before entry. /Lithium hydride; Lithium hydride, fused solid/|/GUIDE 138 SUBSTANCES - WATER-REACTIVE (Emitting Flammable Gases)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Lithium hydride; Lithium hydride, fused solid/|For more DOT Emergency Guidelines (Complete) data for LITHIUM HYDRIDE (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials. Lithium hydride and lithium hydride, fused solid are included on the dangerous goods list.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article. Lithium hydride and lithium hydride, fused solid are included on the dangerous goods list.

Lithium hydride is a severe irritant of the eyes, mucous membranes, and skin due to the formation of lithium hydroxide on moist surfaces and its caustic action.|Lithium hydride causes sneezing, coughing, and severe irritation of the nose and throat.|Corrosive. Causes severe eye and skin burns. May be harmful if inhaled. Symptoms of overexposure include nausea, muscular twitches, mental confusion, blurred vision.

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 0.025 mg/cu m.

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 0.025 mg/cu m.

Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Cover the spilled material with dry powder.

Separated from incompatible materials. See Chemical Dangers. Dry. Keep under mineral oil or inert gas. Cool. Store in an area without drain or sewer access.

A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause severe swelling of the throat. Inhalation of high concentrations may cause lung oedema, but only after initial corrosive effects on the eyes and the upper respiratory tract have become manifest.

NO open flames. See Chemical Dangers. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use closed system or breathing protection.

Protective gloves. Protective clothing.

Wear face shield or eye protection in combination with breathing protection if powder.

| 3 - Materials that, under emergency conditions, can cause serious or permanent injury.| 2 - Materials that must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. Materials would not under normal conditions form hazardous atmospheres with air, but under high ambient temperatures or under moderate heating could release vapor in sufficient quantities to produce hazardous atmospheres with air.| 2 - Materials that readily undergo violent chemical changes at elevated temperatures and pressures.|W - No water: Materials that react violently or explosively with water.

Releases of CERCLA hazardous substances are subject to the release reporting requirement of CERCLA section 103, codified at 40 CFR part 302, in addition to the requirements of 40 CFR part 355. Lithium hydride is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning quantity (TPQ) of 100 lbs.

highly toxic

IDENTIFICATION AND USE: Lithium hydride is a soft silver -white metal which reacts with water and is soluble in liquid ammonia.It is used in the manufacture of catalysts for polyolefin plastics; in fuels for aircraft, missiles. It is used in metallurgy, as degasifier, deoxidizer, desulfurizer; as grain refiner in non-ferrous metals. Used as a chemical intermediate for butyllithium polymerization catalyst; in alloys with aluminum or magnesium for aerospace uses. HUMAN EXPOSURE AND TOXICITY: Lithium hydride causes severe eye and skin burns. Industrial exposures to lithium may occur during extraction of lithium from its ores, preparation of various lithium compounds, welding, brazing, enameling, and from the use of lithium hydrides. ANIMAL STUDIES: No animal studies could be located.

In persons with impaired pulmonary function, especially those with obstructive airway diseases, the breathing of lithium hydride might cause exacerbation of symptoms due to its irritant properties. ... Persons with pre-existing skin disorders may be more susceptible to the effects of this agent. ... Persons with pre-existing eye conditions may be at increased risk from exposure.

Industrial exposures to lithium may occur during extraction of lithium from its ores, preparation of various lithium compounds, welding, brazing, enameling, and from the use of lithium hydrides. /Lithium/|NIOSH (NOES Survey 1974) has statistically estimated that 11 workers are potentially exposed to lithium hydride in the US(1).

The commercial product contains traces of impurities, e.g., unreacted lithium metal

This material is relatively toxic to people. It is more likely to cause irritation of skin and mucous membrane tissues rather than death. Its effects are primarily acute. A massive exposure to the eyes and by inhalation may be lethal. Those experiencing any ailment of the upper respiratory tract (e.g., bronchitis or pneumonia) are at a greater risk. (EPA, 1998)

Warning: Lithium hydride is an alkaline-corrosive agent. Contact with eyes may result in severe damage to the cornea, conjunctiva, and blood vessels. Caution is advised. Signs and Symptoms of Acute Lithium Hydride Exposure: Acute exposure to lithium hydride may result in irritation and burning of the skin, eyes, and mucous membranes. Increased salivation, dysphagia (difficulty swallowing), abdominal pain, and spontaneous vomiting may occur. Stridor (high-pitched, noisy respirations), dyspnea (shortness of breath), and pulmonary edema are also common. Apathy and mental confusion may develop, with progression to coma and death.Emergency Life Support Procedures: Acute exposure to lithium hydride may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination. Inhalation Exposure: 1. Move victims to fresh air. Emergency personnel should avoid self-exposure to lithium hydride. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 4. Transport to a health care facility. Dermal/Eye Exposure: 1. Remove victims from exposure. Emergency personnel should avoid self- exposure to lithium hydride. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Remove contaminated clothing as soon as possible. 4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 30 minutes. 5. Wash exposed skin areas for at least 15 minutes with water. 6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 7. Transport to a health care facility. Ingestion Exposure: 1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 2. DO NOT induce vomiting or attempt to neutralize! 3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 4. Activated charcoal is of no value. 5. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert. 6. Transport to a health care facility. (EPA, 1998)|(See procedures)

Fresh air, rest. Half-upright position. No mouth-to-mouth artificial respiration. Refer immediately for medical attention.

Remove contaminated clothes. Put clothes in sealable container. Rinse skin with plenty of water or shower. Refer immediately for medical attention .

Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.

Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... Monitor for shock and treat if necessary ... Anticipate seizures and treat if necessary ... For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during treatment ... Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... Cover skin burns with dry sterile dressings after decontamination ... /Lithium and related compounds/|Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag-valve-mask device may be beneficial. Consider drug therapy for pulmonary edema ... Monitor cardiac rhythm and treat arrhythmias if necessary ... Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... Treat seizures with diazepam or lorazepam ... Use proparacaine hydrochloride to assist eye irrigation ... /Lithium and related compounds/

/SIGNS AND SYMPTOMS/ ... Great chemical reactivity, particularly with moisture, producing marked irritancy and corrosiveness to biologic tissues. Thus its potential health hazard is acute in nature.[Clayton, G. D. and F. E. Clayton (eds.). Patty's Industrial Hygiene and Toxicology: Volume 2A, 2B, 2C: Toxicology. 3rd ed. New York: John Wiley Sons, 1981-1982., p. 1732]|/SIGNS AND SYMPTOMS/ Lithium hydride is a severe irritant of the eyes, mucous membranes, and skin due to the formation of lithium hydroxide on moist surfaces and its caustic action.[Zenz, C., O.B. Dickerson, E.P. Horvath. Occupational Medicine. 3rd ed. St. Louis, MO., 1994, p. 605]|/SIGNS AND SYMPTOMS/ Lithium hydride causes sneezing, coughing, and severe irritation of the nose and throat. Lithium hydride can cause severe eye and skin burns. If swallowed, the mouth, trachea, and esophagus may be burned. Inadvertent ingestion of lithium hydride may cause nausea, muscle twitches, mental confusion, blurring of vision, coma, and death.[Mackison, F. W., R. S. Stricoff, and L. J. Partridge, Jr. (eds.). NIOSH/OSHA - Occupational Health Guidelines for Chemical Hazards. DHHS(NIOSH) Publication No. 81-123 (3 VOLS). Washington, DC: U.S. Government Printing Office, Jan. 1981.]|/SIGNS AND SYMPTOMS/ In atmospheres containing 0.5 mg/cu m, the skin becomes inflamed and lacrimation occurs.[American Conference of Governmental Industrial Hygienists, Inc. Documentation of the Threshold Limit Values and Biological Exposure Indices. 6th ed. Volumes I, II, III. Cincinnati, OH: ACGIH, 1991., p. 862]|For more Human Toxicity Excerpts (Complete) data for LITHIUM HYDRIDE (9 total), please visit the HSDB record page.

Serious local effects by all routes of exposure.|inhalation, ingestion, skin and/or eye contact

irritation eyes, skin; eye, skin burns; mouth, esophagus burns (if ingested); nausea; muscle twitches; mental confusion; blurred vision

Cough. Sore throat. Burning sensation. Nausea. Vomiting. Shortness of breath.

Redness. Pain. Blisters. Skin burns.

Redness. Pain. Blurred vision. Severe deep burns.

Eyes, skin, respiratory system, central nervous system

Grade: 93-95%, Based on hydrogen evolution.|Powder, -30 mesh; 95%|Product has a purity of 98-99% and is supplied in the form of lumps or powder

Lithium hydride (LiH): ACTIVE|Commercial product is light bluish-gray due to minute amt of colloidally dispersed lithium.|Industrial product has a bulk density of approx 0.29 kg/L

Fire Hazards -> Flammable - 2nd degree, Reactive - 2nd degree