- Iron(III) sulfate monohdrate
- Ferric sesquisulfate
- Ferric tersulfate
- Diiron tris(sulfate)
A yellow crystalline solid or a grayish-white powder.
In preparation of iron alums, other iron salts and pigments, as coagulant in water purification and sewage treatment, in etching aluminum, in pickling stainless steel and copper, as mordant in textile dyeing and calico printing, in soil conditioners, as polymerization catalyst.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Decomposition point, °C
3.1 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Store in a cool, dry place. Keep containers tightly closed.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Discard contaminated shoes.
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.
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stable under normal temperatures and pressures.
Corrosive to metals.
Sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use alcohol foam, carbon dioxide, or water spray when fighting fires involving this material.
Some may burn but none ignite readily. May polymerize explosively when heated or involved in a fire. Containers may explode when heated. Some may be transported hot.
Fire may produce irritating, corrosive and/or toxic gases.
Blood pressure may be decreased following an iron overdose. Lethargy, restlessness or confusion may be seen early in the poisoning. Convulsions and coma may occur in later phases. Case reports of pregnant women who have received early aggressive treatment (decontamination and/or deferoxamine) have described good fetal outcomes.
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May cause liver and kidney damage.
May cause respiratory tract irritation.
May cause skin irritation.
May cause 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 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 if irritation develops or persists. Flush skin with plenty of soap and water.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code
Std. Transport #