Precautions for handling Sodium Fluoride NaF
Sodium Fluoride NaF is a colorless bright crystal or white powder with a specific gravity of 2.25, a melting point of 993 and a boiling point of 1695. Soluble in water and hydrofluoric acid, slightly soluble in alcohol. The aqueous solution is weakly alkaline and dissolves in hydrofluoric acid to form sodium bifluoride, which can corrode glass. poisonous!
Sodium Fluoride NaF is colorless cubic or tetragonal crystals. Sensitive to humidity. Solubility in water (g/100ml): 4 at 15, 4.3 at 25, 5 at 100, insoluble in ethanol. Partial hydrolysis of aqueous solutions is an alkaline reaction. The pH of the freshly prepared saturated solution was 7.4. Its aqueous solution can be made into glass wool, but its dry crystals or powder can be stored in glass bottles. The relative density is 2.78. Melting point 993.
Closed operation with adequate local exhaust. Prevent dust from being released into the workshop air. Operators must receive special training and strictly abide by operating procedures. It is recommended that operators wear dust masks (full cover), rubber acid and alkali resistant clothing and rubber acid and alkali resistant gloves. Avoid dust. Avoid contact with acids. Sodium Fluoride NaF should pay special attention to avoid contact with water. Equipped with leakage emergency treatment equipment. Empty containers may leave behind harmful substances.