Fluorspar

  • Fluorite
  • Calcium fluoride mineral
  • Fluor
Formula
CaF2
Structure
Description
Occurs in light green, blue, yuellow, brown and colorless forms. All values provided are for calcium fluoride.
Uses
Main primary source of fluorine & its compd, in ferrous metallurgy as flux to incr fluidity of slag, synthetic fluorspar is used in optical industry (transmits uv rays), pure form used as catalyst in dehydration & dehydrogenations, used to fluoridate drinking water.

Registry Numbers and Inventories.
CAS
14542-23-5
EC (EINECS/ELINCS)
238-575-7
Beilstein/Gmelin
11252 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
CaF2
Formula mass
78.07
Melting point, °C
1403
Boiling point, °C
2500
Density
3.18 g/cm3 (20 C)
Solubility in water
Insoluble
Thermal expansion
1.91E-05/K

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.
Protection
Protective gloves. Safety goggles.
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the proper protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable.
Incompatibilities
Strong oxidizing agents.
Decomposition
When heated to decomposition, emits toxic fumes of hydrogen fluoride.

Fire.
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. Use agent most appropriate to extinguish fire.
Fire potential
Nonflammable

Health.
Exposure limit(s)
TLV (as fluoride): 2.5 mg/m3 A4 (as TWA) (ACGIH 1998)
Exposure effects
Hyperactive reflexes, painful muscle spasms, weakness and tetanic contractures may be noted due to fluoride induced hypocalcemia. Prenatal fluoride supplementation (2.2 mg NaF or 1 mg fluoride daily) during the last two trimesters of pregnancy has been reported to be safe.
   Ingestion
Epigastric pain, nausea, dysphagia, salivation, hematemesis, and diarrhea may be noted. These effects may be delayed for several hours following exposure. Gi symptoms are noted when 3 to 5 mg/kg of fluoride are ingested.
   Inhalation
Respirations are first stimulated then depressed. Death is usually from respiratory paralysis. Following inhalation, coughing and choking may be noted.
   Skin
Causes irritation. Urticaria and pruritus have been reported following exposure to fluoride.
   Eyes
Causes irritation.

First aid
 
   Ingestion
Obtain immediate medical assistance.
   Inhalation
Remove to fresh air immediately. If brething has stopped, perform artificial respiration. Keep victim warm.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
USCG CHRIS Code
FLS