What is this ingredient?

미국 FDA 물질 등록 · UNII 9Q764AYJ9G · 등록명 FERROUS AMMONIUM SULFATE ANHYDROUS · 단일 화학물질

Ingredient Dictionary

FERROUS AMMONIUM SULFATE

Ferrous ammonium sulfate (anhydrous) is a compound of ammonium, iron and sulfate in which the ratio of ammonium to iron(2+) to sulfate ions is 2:1:2.

Definition

US FDA substance register · UNII 9Q764AYJ9G · registered name FERROUS AMMONIUM SULFATE ANHYDROUS · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Ferrous ammonium sulfate (anhydrous) is a compound of ammonium, iron and sulfate in which the ratio of ammonium to iron(2+) to sulfate ions is 2:1:2. It has a role as a ferroptosis inducer. It is an iron molecular entity, an ammonium salt and a metal sulfate. It contains an iron(2+).

Source: PubChem

Cosmetic roles

Inhibits microbial growthANTIMICROBIAL

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

FERROUS AMMONIUM SULFATEINCISulfuric acid, ammonium iron(2+) salt (2:2:1)Synonym

CAS No.chemical registry number: 10045-89-3
EC No.EU chemical inventory number: 233-151-8
DTXSIDUS EPA chemical ID: DTXSID4041028
DTXCIDUS EPA compound ID: DTXCID2021028

IUPAC: Ammonium iron(2+) sulfate (2/1/2)
Molecular formula: FeH8N2O8S2
Molecular weight: 284.04 g/mol

Measured properties

Appearance: Ferrous ammonium sulfate appears as a light green crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in medicine, chemical analysis and metallurgy. · Light green crystals, deliquescent and soluble in water, [CAMEO]
Solubility: 26.9 G SOL IN 100 CC WATER @ 20 °C, 73 G SOL IN 100 CC WATER @ 80 °C, INSOL IN ETHANOL. /FERROUS AMMONIUM SULFATE HEXAHYDRATE/
Density: 1.86 at 68 °F (USCG, 1999) - Denser than water, will sink · Pale blue-green crystals or crystalline powder. Efforesces. Density: 1.86 at 20 °C/4 °C. /Ferrous ammonium sulfate hexahydrate/
Stability: Slowly oxidizes in air. /Ferrous ammonium sulfate hexahydrate/

Values measured on the substance itself, not a specification for a commercial raw material.

Source: PubChem

What products actually use it for

What the 2 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.

Biocide1
Reducing agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 1 eye studies are on record.

Classed as moderate1

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 2 studies

Category 6.3A (Category 2)
Skin Irritation · Read Across
Category 6.4A (Category 2A)
Eye Irritation · Read Across