| General Description | Crystalline solid. Decomposes at 120°C. Contact may cause slight irritation to skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals. |
| Air & Water Reactions | Water soluble. |
| Reactivity Profile | Magnesium fluosilicate gives basic aqueous solutions. Reacts with acids. Does not usually react as either oxidizing agents or reducing agents. |
| Health Hazard | Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. |
| Fire Hazard | Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways. |
| Flammability and Explosibility | Nonflammable |
| Safety Profile | Moderately toxic by
ingestion. When heated to decomposition it
emits toxic vapors of magnesium and F-. |
