Gray to pink crystalline powder.
In dyeing, for red glazes on porcelain, boiling oils for varnishes, in fertilizers for vines, tobacco, in feeds.
Registry Numbers and Inventories.
EC Index Number
Harmful; Dangerous for the Environment
Tumorigen; Mutagen; Reproductive Effector
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
700 - 720
Decomposition point, °C
3.25 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Store in a tightly closed container in a cool, dry place, away from heat and direct sunlight.
Containers of this material may be hazardous when emptied. Since emptied containers retain product residues (vapor, liquid, and/or solid), all hazard precautions given in the data sheet must be observed.
Wear appropriate protective eyeglasses or chemical safety goggles, gloves and adequate protective clothing to minimise skin exposure. Wash hands and face thoroughly after handling and before eating, drinking smoking or using toilet facilities.
In dusty conditions, wear a dust mask or air-supplied breathing apparatus depending on levels of dust.
Clean up personnel should wear protective clothing including breathing apparatus in dusty conditions. Avoid generating dust. Vacuum or sweep up material and place in suitable containers. Hold for reuse or disposal. Wash spill site with soapy water after initial pickup is complete.
Stable under normal conditions of use.
Can react with strong acids, strong oxidising agents and powdered metals. May react violently with hydrogen peroxide.
Carbon dioxide, sulphur oxides (SOx), including sulphur oxide and sulphur dioxide, oxides of manganese.
Extinguish fire using No data Wear a self-contained breathing apparatus with a full facepiece operated in the positive pressure demand mode with appropriate turn-out gear and chemical resistant personal protective equipment.
Material is non-flammable.
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. Use water spray, dry chemical, carbon dioxide or chemical foam type extinguishers. Use equipment/media appropriate to surrounding fire conditions.
Chronic inhalation or ingestion may result in nonspecific neurological symptoms of headache, apathy, and weakness of legs, followed by psychosis, and finally appearing with neurological symptoms similar to those of Parkinson's disease. In its acute form, manganese poisoning has an effect characteristic of other heavy metals, leading to metal fume fever if dust or fume is inhaled in sufficient quantity.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
May cause respiratory tract irritation.
May cause skin irritation. Low hazard for usual industrial handling.
May cause mild eye irritation.
If victim is conscious and alert give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Seek medical attention.
Remove from exposure to fresh air immediaetly - avoid becoming casualty. If not breathing, give artificial respiration. If breahting is difficult, give oxygen. Seek medical attention immediately.
Flsu skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Seek medical attention if irritation develops or persists.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Seek medical attention.