Product Identification

Product Name

Lithium fluoride

Synonyms

Fluorolithium
Lithium monofluoride

CAS

7789-24-4

Formula

FLi

Molecular Weight

25.94

EINECS

232-152-0

RTECS

OJ6125000

RTECS Class

Other

Merck

13,5553

Beilstein/Gmelin

13585 (G)

EC Class

toxic, irritant

Physical and Chemical Properties

Appearance

Odorless, white fluffy powder.

Solubility in water

1.3 g/L (25 C)

Melting Point

870

Boiling Point

1676

Vapor Pressure

0.07 (900 C)

Density

2.64 g/cm3 (20 C)

Heat Of Vaporization

213.5 kJ/mol

Usage

As flux for soldering & welding aluminum, in manufacture of vitreous enamels & glazes, prisms are used in infrared spectrophotometers.

Refractive Index

1.39937 (20 C)

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation.

Skin

May cause severe irritation and possible burns. May cause severe skin irritation with possible burns, especially if skin is wet or moist. Chronic ingestion may cause dizziness, ringing in the ears, visual disturbances, tremors, and mental confusion. Prolonged absorption may affect electrolyte balance and impair kidney function. Dehydration, weight loss, skin effects, and thyroid disturbances have been reported.

Eyes

Contact with eyes may cause severe irritation, and possible eye burns.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause muscle tremor and impaired motor function. May cause circulatory system failure. May cause cardiac disturbances. May cause tremors and convulsions. Inorganic fluorides can be harmful. Acute exposure to fluorine compounds can lead to digestive tract burns, and abdominal pain. Exposure to fluoride compounds can result in systemic toxic effects on the heart, liver, and kidneys. It may also deplete calcium levels in the body leading to hypocalcemia and death. Contains fluoride. Fluoride can reduce calcium levels leading to fatal hypocalcemia.

EC Risk Phrase

R 23/25 36/37/38

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

3288

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

Chronic ingestion may cause dizziness, ringing in the ears, visual disturbances, tremors, and mental confusion. Prolonged absorption may affect electrolyte balance and impair kidney function. Dehydration, weight loss, skin effects, and thyroid disturbances have been reported.

Exposure limit(s)

IDHL: NIOSH considers chromic acid and chromates, as Cr, to be potential occupational carcinogens.

Poison Class

3

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Non-combustible, substance itself does not burn but may decompose upon heating to produce irritating, corrosive and/or toxic fumes. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use extinguishing media most appropriate for the surrounding fire.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce irritating, corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

23

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong acids, and strong oxidizing agents.

Decomposition

Hydrogen fluoride, hydrogen bromide, oxides of lithium.

Combustion Products

During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.

Transport Information

UN Number

3288

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2826 19 00