INTRODUCTION

Ferric Ammonium Citrate (FAC) is a mixture of indefinite composition that contains ferric and ammonium cations and citrate(3−) anions.

It may be obtained as red crystals or a brownish yellow powder or as green crystals or powder. Distinguishing feature of this compound is that it is very soluble in water, in contrast to ferric citrate which is not very soluble.

SynonymsAmmonium ferric citrate
Iron(III) ammonium citrate
CAS no.1185-57-5
EINECS no.214-686-6
Molecular formulaVariable (Complex Salt)
Molecular weightVariable (Complex Salt)
Structure

APPLICATIONS

FAC has a wide range of applications and therapeutic uses, including:

As a food ingredient, it has an INS number 381, and is used as an acidity regulator.
As a nutritional supplement.
As a hematinic that tends to stimulate blood cell formation or to increase the hemoglobin in the blood.
Source of iron in treating iron-deficiency anemia. It is less constipating than inorg forms of iron. It is free from astringent & irritant properties.
As a reducing agent of metal salts of low activity like gold and silver.
In medical imaging, it is used as a contrast medium.
With potassium ferricyanide as part of the cyanotype photographic process.
Used in Kligler iron deeps to determine hydrogen sulfide production in microbial metabolism.
Inks & Digital Inks.
Water purification & Pool chemicals.
Finishing & Flux.

SPECIFICATIONS – reference BP

TestUnitSpecification
DescriptionThin, transparent, dark red scales or granules or brownish red powder, odorless; deliquescent in moist air and is affected by light
Solubility (at 20⁰C)Soluble in 0.5% part of water. Almost insoluble in 95% ethanol
IdentificationShould be positive for Iron, Ammonia and Citrates as per BP
ArsenicppmMax 4
Lead (Pb)ppmMax 30
Zinc (Zn)Sample should be less turbid than standard
Sulphate%NMT 0.3
Assay (as Fe) as such basis% w/w20.5 – 22.5
– Also available in USP (brown) & BPC (green)
– Spray dried homogeneous powder & granules

STORAGE

Keep well closed, protected against light, dry and at room temperature.

ExSyn offers this product on commercial scale and welcomes inquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please get in touch with us.

More Products
In focus: L – Carnitine Hydrochloride
Products in focus · 29/04/2025

L-carnitine Hydrochloride is a water soluble, stable salt form of L- Carnitine. It is a naturally occurring amino acid derivative.  It is often used as a dietary  supplement due to its role in energy production and fat metabolism.

READ MORE
In focus: Dimenhydrinate USP
Products in focus · 22/04/2025

Dimenhydrinate is an antihistamine drug commonly used to prevent and treat motion sickness, nausea, and vertigo. It is a combination of diphenhydramine and 8-chlorotheophylline, where the latter reduces the sedative effects of diphenhydramine. It is available in tablet, liquid, and injectable forms under various brand names.

READ MORE
In focus: o-Nitrophenyl Disulfide
Products in focus · 15/04/2025

o-Nitrophenyl Disulfide is a chemical compound used in organic chemistry and biochemistry. It is a disulfide derivative where two o-nitrophenyl groups are connected by a disulfide bond (-S-S-) It is used in various organic synthesis reactions, as a reagent in the preparation of thiol-reactive compounds, in pharmaceutical research and laboratory applications.

READ MORE
In focus: Tetrasodium Pyrophosphate, Anhydrous
Products in focus · 08/04/2025

Tetrasodium pyrophosphate (TSPP) anhydrous is a white, crystalline or granular inorganic compound, soluble in water but insoluble in alcohol. TSPP is widely used in food, industrial, and cleaning applications due to its sequestrant, dispersing, buffering, and emulsifying properties.

READ MORE
In focus: Potassium Sodium Tartrate
Products in focus · 01/04/2025

Potassium sodium tartrate commonly known as Rochelle salt, is a double salt of tartaric acid. It is a white crystalline solid that is highly soluble in water. This compound is well known for its piezoelectric properties and has been historically used in various scientific and industrial applications.

READ MORE
In focus: Tert – Amyl Alcohol
Products in focus · 25/03/2025

Tert-Amyl Alcohol (TAA) also known as 2-Methyl-2-butanol, is a branched-chain alcohol. It is a colorless, flammable liquid with a mild alcoholic odor and moderate water solubility. Due to its unique structural properties, it is widely used as basic organic chemical in synthetic fragrances, pharmaceuticals and pigment industries.

READ MORE
In focus: Lithium Orotate, Monohydrate
Products in focus · 18/03/2025

Lithium orotate is a compound consisting of lithium, an alkali metal, and orotic acid, a natural substance involved in nucleic acid metabolism. It is a popular dietary supplement due to its potential neuroprotective and mood-stabilizing effects.

READ MORE
In focus: 3-Quinuclidinone Hydrochloride
Products in focus · 11/03/2025

Quinuclidinone Hydrochloride is a derivative of bicyclic amine quinuclidine. The hydrochloride form of quinuclidinone is the salt form, often used for its stability in different reactions. Quinuclidinone Hydrochloride is typically used as an intermediate in the synthesis of various pharmaceuticals and other chemical products.

READ MORE
In focus: Potassium Benzoate FCC
Products in focus · 04/03/2025

Potassium benzoate (E212), the potassium salt of benzoic acid, is a food preservative used to prevent the growth of mold, yeast and some bacteria. It works best in low-pH products, below 4.5, where it exists as benzoic acid.

READ MORE