Iron(3+) sulfate is a compound of iron and sulfate in which the ratio of iron(3+) to sulfate ions is 3:2.
Definition
US FDA substance register · UNII 4YKQ1X5E5Y · registered name FERRIC SULFATE ANHYDROUS · single chemical substance
Iron(3+) sulfate is a compound of iron and sulfate in which the ratio of iron(3+) to sulfate ions is 3:2. It has a role as a catalyst, a mordant and an astringent. It is an iron molecular entity and a metal sulfate. It contains an iron(3+).
Source: PubChem
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 硫酸第二鉄: 本品は、硫酸（＊）の第二鉄塩であり、次の化学式で表わされる。[Fe2(SO4)3]
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 10028-22-5
- EC No.EU chemical inventory number
- 233-072-9
- DTXSIDUS EPA chemical ID
- DTXSID5029712
- DTXCIDUS EPA compound ID
- DTXCID409712
- IUPAC
- Iron(3+) sulfate (2/3)
- Molecular formula
- Fe2O12S3
- Molecular weight
- 399.86 g/mol
Measured properties
- Appearance
- Ferric sulfate appears as a yellow crystalline solid or a grayish-white powder. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used for water purification, and as a soil conditioner. · Wet Solid, Liquid, Other Solid, Large Crystals
- Boiling point
- The Anhydrous form decomposes (480ºC)
- Melting point
- The Anhydrous form decomposes (480ºC) · 480 °C (decomp)
- Solubility
- Soluble at room temperature · Slowly sol in water, rapidly sol in the presence of a trace of ferrous sulfate, sparingly sol in alc, practically insol in acetone, ethyl acetate.
- Density
- 3.1 at 68 °F (USCG, 1999) - Denser than water, will sink · 3.097 at 18 °C
- Stability
- Hydrolyzed slowly in aqueous solution.
Values measured on the substance itself, not a specification for a commercial raw material.
Source: PubChem
What products actually use it for
What the 15 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Diluent2
- Intermediate2
- Solids separation (precipitating) agent, not other2
- Flocculating agent2
- Cleaning agent1
- Deodorizer1
- Humectant1
- Flavouring and nutrient1
3 other uses
- Plating agent1
- Soil amendments1
- Processing aids not otherwise specified1
Source: US EPA CompTox dashboard
Related literature
- [Christmas article: The dermatologist's Christmas palette - an experimental study of Christmas decorations with topical preparations]. · 2025
- Advanced adhesion enhancement system for high frequency PCB manufacturing · 2020
- Reduction of Ammonia Emissions from Stored Laying Hen Manure Through Topical Application of Zeolite, Al + Clear, Ferix-3, or Poultry Litter Treatment · 2008
Linked databases 17
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Japanese · Chinese