Potassium, metal alloys is potassium mixed with some other metal, usually sodium. It is a liquid under normal conditions.
In synthesis of inorg potassium compd, as heat transfer medium together with sodium, in organic syntheses involving condensation, dehalogenation, reduction, & polymerization reactions.
Registry Numbers and Inventories.
EC Index Number
Reacts violently with water; Highly flammable; Corrosive
R 14/15 34
S 8 43 45
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Odor Threshold Odor threshold Odorless
0.86 g/cm3 (20 C)
Solubility in water
Heat of fusion
Heat of combustion
Hazards and Protection.
Do not store near combustible materials. Store in a cool, dry place. Storage under a nitrogen blanket has been recommended.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not allow water to get into the container because of violent reaction. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Faceshield required. Store and handle protected from air. Avoid mechanical shock and friction.
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.
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.
Cover with limestone and place into a closed container for disposal. Remove all sources of ignition. Use a spark-proof tool. Isolate area and deny entry. Do not expose spill to water. Cover with material such as dry soda ash or calcium carbonate and place into a closed container for disposal.
Not stable during routine use and handling conditions. Oxidizes when exposed to air.
Water; air; carbon dioxide; oxidizing agents; metal halides; non-metal halides; carbon; halocarbons; halogens; hydrogen iodide; metal oxides
Hydrogen gas, oxides of potassium, potassium fume.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Forms peroxides of unknown stability. Water Reactive. May react exothermically with water, causing liberation of heat and possible spattering of material. Reacts with water to form explosive hydrogen gas. Extinguishing media: Do NOT use carbon dioxide. Do NOT use alcohol foams. Do NOT use halogenated agents. Use approved class D extinguishing agents or smother with dry sand, clay, or sodium bicarbonate. DO NOT USE WATER!
This material is combustible.
Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Fire will produce irritating, corrosive and/or toxic gases.
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May cause systemic toxic effects on the heart, liver, and kidneys.
May cause lung damage.
May cause severe skin irritation with possible burns, especially if skin is wet or moist.
May cause irreversible eye injury. Contact with eyes may cause severe irritation, and possible eye burns.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Gently lift eyelids and flush continuously with water. Extensive irrigation is required (at least 30 minutes).
USCG CHRIS Code
Std. Transport #