Lohtragon® C07 | Type 66

Q: What are Iron Citrates?

Iron Citrates are inorganic salts of citric acid and iron. Ferrous Citrates contain Fe²⁺ cations and typically appear as light green crystalline solids or powders, while Ferric Citrates contain Fe³⁺ cations and are reddish-brown. Both are sparingly to slightly soluble in water and are used for controlled iron delivery and complexing in technical applications.

Q: What are Iron Citrates used for and why?

Catalysts: Ferric Citrates serve as stable iron precursors with controlled release and thermal stability Crop care: Ferric Citrates supply soluble iron for plant nutrition, especially in liquid fertilizers and aquatic systems Water treatment: Ferrous and Ferric Citrates bind sulfides and precipitate heavy metals, helping with odor and corrosion control Ceramics & glass: Ferric Citrates act as pigment precursors for stable and vivid iron-based ceramic inks

Q: Where are our Iron Citrates produced?

They are produced at our manufacturing facilities in Germany.

Q: What is special about our Iron Citrates?

Over 135 years of expertise in mineral and specialty salts Exclusive production in Germany with strict quality control Consistent solubility and high-purity materials Full batch traceability and transparent supply chain Compliance with EU REACH and food-contact regulations where applicable

Q: What is the difference between Ferrous Citrates and Ferric Citrates?

Ferrous Citrates (Fe²⁺): green, provide gentler iron release, suitable for nutrient systems and processes requiring controlled solubility Ferric Citrates (Fe³⁺): reddish-brown, more stable, ideal for catalytic, pigment, or high-pH applications

Q: What is the difference between liquid and solid Iron Citrates?

Solid forms such as powders or granules are easier to store, transport with lower weight, and allow flexible preparation of solutions in different concentrations. Solutions, on the other hand, are ready-to-use, enable precise dosing, reduce dust exposure, and can be much more practical in continuous or large-scale processes depending on the customer’s requirements.

Ferric Ammonium Citrate, brown

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Lohtragon® C07 | Type 66

Product Data

Lohtragon^® C07 based on Ferric Ammonium Citrate / Iron(III) Ammonium Citrate (CAS No. 1185-57-5) is ideal for demanding industrial and technical applications. It functions, among others, as a high-performance additive in different application areas like Crop Protection, Catalysts or Ceramic Printing.

Rely on Lohtragon^® quality for consistent performance and proven reliability. With production sites in Germany, we are your trusted Ferric Ammonium Citrate manufacturer.

General Characteristics

Synonyms: Ammonium Iron(III) Citrate, brown; Iron(III) Ammonium Citrate, brown

CAS No.:	1185-57-5
EINECS No.:	214-686-6
HS No.:	2918155000

Product parameter	Additional information	Storage conditions \| Retest period
powder chem. pure 16.5-18.5 % Fe \| brownish-yellow \| Solubility 20 °C: ++ \| pH 1 %: approx. 7 \|	Also available: in further particle sizes, in green, and as aqueous solution	Keep well closed, protected against light, dry and at room temperature; 36 months

++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
The solubility specified here was measured in water. The solubility is influenced by many factors in the application.

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Ferric Ammonium Citrate in Crop Protection

Lohtragon^® C07 is an excellent choice for liquid fertilizer formulations in crop protection. It provides optimal nutrient content with the highest levels of iron and ammonium, essential for healthy plant growth and development. It ensures easy integration and efficient delivery, making it a reliable solution for enhancing crop yields and soil nutrient balance.

Key benefit of Ferric Ammonium Citrate in Crop Protection:

High concentrations of iron and ammonium for improved plant nutrition
Supports robust plant development and nutrient uptake
Easily integrated into liquid fertilizer formulations for efficient delive

Iron(III) Ammonium Citrate in Catalysts

Ferric Ammonium Citrate is an efficient precursor for iron-based heterogeneous catalysts. It serves as a stable source of iron metal and its oxides, offering excellent thermal decomposition behavior and stability at high pH levels. These properties make it ideal for applications requiring robust and reliable catalysts in industrial chemical processes.

Key benefit of Lohtragon^® C07 in Catalysts:

Stable iron precursor suitable for heterogeneous catalyst synthesis
Exhibits strong thermal decomposition behavior for controlled metal release
Effective at high pH conditions for demanding industrial environments

Ferric Ammonium Citrate in Ceramic Printing

Lohtragon^® C07 is a valuable precursor for ceramic inkjet colors. It provides a reliable source of iron ions, essential for creating stable and durable pigments. Its properties enable well-printable and precise ink formulations, ensuring high-quality results for vibrant and long-lasting ceramic designs.

Key benefits of Ferric Ammonium Citrate in Ceramic Printing:

Reliable source of iron ions for long-lasting terracotta and red shades
Enables precise inkjet formulations for high-definition ceramic printing
Ensures stability and printability in ceramic pigment systems

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Unlock the full potential of your process with Lohtragon^®C07 based on Ferric Ammonium Citrate / Iron(III) Ammonium Citrate. Ready to elevate your formulation?
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Our detailed product and production knowledge allows us to adapt the chemical and physical properties of our metal salts in line with their intended purpose, depending on where and how they are to be used, and to develop individual processes and solutions in collaboration with our customers. Get an idea about our extensive R&D capabilities and benefit from new developments and custom specifications.

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Frequently asked questions about this product

What are Iron Citrates?

Iron Citrates are inorganic salts of citric acid and iron. Ferrous Citrates contain Fe²⁺ cations and typically appear as light green crystalline solids or powders, while Ferric Citrates contain Fe³⁺ cations and are reddish-brown. Both are sparingly to slightly soluble in water and are used for controlled iron delivery and complexing in technical applications.

What are Iron Citrates used for and why?

Catalysts: Ferric Citrates serve as stable iron precursors with controlled release and thermal stability
Crop care: Ferric Citrates supply soluble iron for plant nutrition, especially in liquid fertilizers and aquatic systems
Water treatment: Ferrous and Ferric Citrates bind sulfides and precipitate heavy metals, helping with odor and corrosion control
Ceramics & glass: Ferric Citrates act as pigment precursors for stable and vivid iron-based ceramic inks

Where are our Iron Citrates produced?

They are produced at our manufacturing facilities in Germany.

What is special about our Iron Citrates?

Over 135 years of expertise in mineral and specialty salts
Exclusive production in Germany with strict quality control
Consistent solubility and high-purity materials
Full batch traceability and transparent supply chain
Compliance with EU REACH and food-contact regulations where applicable

What is the difference between Ferrous Citrates and Ferric Citrates?

Ferrous Citrates (Fe²⁺): green, provide gentler iron release, suitable for nutrient systems and processes requiring controlled solubility
Ferric Citrates (Fe³⁺): reddish-brown, more stable, ideal for catalytic, pigment, or high-pH applications

What is the difference between liquid and solid Iron Citrates?

Solid forms such as powders or granules are easier to store, transport with lower weight, and allow flexible preparation of solutions in different concentrations. Solutions, on the other hand, are ready-to-use, enable precise dosing, reduce dust exposure, and can be much more practical in continuous or large-scale processes depending on the customer’s requirements.

The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.

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