Tetra Fluoroborate

Delayed effects there is no chronic toxicity data on this material, however, niosh links inorganicfluoborates with inorganic fluorides. Chronic exposure to fluorides is associated with osseous fluorosis - increased radiographic density of bones, mottling of teeth, etc. These conditions will not develop if permissible exposure levels are not exceeded. Kidney damage, asthma and symptoms resembling rheumatism may occur.

Eye:	Skin:
If material is splashed into eyes, flush with plenty of water for at least 15 minutes, ensuring eye lids are held open. Immediately transport to hospital or doctor.	If material is splashed onto the skin, remove any contaminated clothing and wash skin thoroughly with water and soap if available. Urgently transport to hospital or doctor.

First Aid Facilities :

Advice to Doctor :

Eye wash fountain, safety shower and normal wash room facilities.

Treat symptomatically. Symptoms of fluoride overexposure may include salivation, nausea, vomiting, abdominal pain, fever, laboured breathing. Fluoride ion can reduce serum calcium levels possibly causing fatal hypocalcemia. Prolonged exposure to fluoride dusts, vapours or mists results in perforation of the nasal septum. Chronic effects include excessive calcium precipitation by the fluoride ion in the bones, ligaments and tendons.