Manganese sulfate monohydrate
- Manganous sulfate monohydrate
Odorless pale red slightly efflorescent crystals or light pink powder.
Registry Numbers and Inventories.
EC Index Number
harmful, dangerous for the environment
R 48/20/22 51/53
S 22 61
Tumorigen; Mutagen; Reproductive Effector
Japan ENCS (MITI)
MnO4S . H2O
Melting point, °C
Vapor pressure, mmHg
0.023 (25 C)
Vapor density (air=1)
2.845 g/cm3 (15 C)
Solubility in water
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use only in a well ventilated area. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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.
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
Stable under normal temperatures and pressures.
Can react with strong acid, strong oxidizing agents, powdered metals; may react violently with hydrogen peroxide.
Carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide, oxides of manganese.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Material will not burn. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
This material is probably combustible.
TLV (as Mn): ppm; 0.2 mg/m3 (ACGIH 1995-1996).
4 (Substances and products that must be considered harmful)
Chronic inhalation or ingestion may cause argyria characterized by blue-gray discoloration of the eyes, skin and mucous membrances. Chronic skin contact may cause permanent discoloration of the skin.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling.
May cause respiratory tract irritation.
May cause skin irritation.
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. Get medical aid.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Remove contaminated clothing and shoes.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
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