What Is Ferrous Gluconate, Organic Iron (Feed/Pet)? Applications, Dosage, Alternatives & Specifications
Last updated: 2026-11-14 · CAS 299-29-6 · Food Grade
- Quick facts
- Name
- Ferrous Gluconate, Organic Iron (Feed/Pet)
- CAS number
- 299-29-6
- Grade
- Food Grade
- Certifications
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- Application areas
- 2
- Documentation
- COA · TDS · SDS
Overview
Ferrous Gluconate, also known as Iron(II) Gluconate, is an organic ferrous salt formed by the combination of gluconic acid and ferrous ions (Fe2+), generally existing as the dihydrate (C12H22FeO14·2H2O). Its molecular weight is 482.17 (dihydrate), CAS number is 12389–15–0 (dihydrate) or 299–29–6 (anhydrous), and EINECS number is 206–076–3. Ferrous gluconate appears as a yellowish-gray or pale greenish-yellow granule or powder with a slight burnt sugar odor, soluble in water (10g/100mL), slightly soluble in ethanol, and its 5% aqueous solution is weakly acidic. As an organic iron source, ferrous gluconate offers advantages such as high bioavailability, minimal gastrointestinal irritation, and a mild, non-astringent taste. It is widely used in food nutrient fortification, dietary supplements, pharmaceutical preparations, and feed additives. As a food additive, it is used as a nutritional supplement (iron fortifier) and color adjuvant; in the pharmaceutical field, it is used to treat iron deficiency anemia.
Appearance: Yellowish-gray or pale greenish-yellow crystalline granules or powder with a slight burnt sugar odor.
Molecular Formula and Molecular Weight: C12H22FeO14·2H2O (dihydrate), molecular weight 482.17; C12H22FeO14 (anhydrous), molecular weight 446.15.
Applications
Food Nutrient Fortification Applications
Ferrous gluconate can be used as an iron fortifier added to various foods to increase iron content. Ferrous gluconate has high bioavailability, good…
Feed Additives and Animal Nutrition Applications
Ferrous gluconate applications in feed additives are growing rapidly as a core raw material for animal iron supplements and feed nutrient fortifiers…
Specification
| Specification | Test Method | |
|---|---|---|
| Ferrous Gluconate Content (on dried basis), % | 97.0–102.0 | Titration |
| Loss on Drying, % | ≤10.0 | Loss on drying method (105°C, 16h) |
| Ferric Iron (as Fe3+), % | ≤2.0 | Spectrophotometry |
| Chlorides (as Cl), % | ≤0.07 | Silver nitrate precipitation turbidimetry |
| Sulfates (as SO4), % | ≤0.1 | Barium chloride precipitation turbidimetry |
| Lead (Pb), mg/kg | ≤2.0 | Atomic absorption spectroscopy |
| Total Arsenic (as As), mg/kg | ≤2.0 | Atomic fluorescence spectrometry |
| Mercury (Hg), mg/kg | ≤3.0 | Atomic fluorescence spectrometry |
| Heavy Metals (as Pb), mg/kg | ≤20 | Atomic absorption spectroscopy |
| Reducing Sugars | Passes test | Fehling's reagent method |
| Oxalates | Passes test | Colorimetry |
| 3.2 USP/EP/FCC International Standard Requirements |
Packaging & Storage
- Packing: 25kg net fiber drum with double PE liner.
- Sample: 100-500g free sample available.
- Storage: Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- Shelf Life: 24 months from production date.
Quality & Certifications
Every batch tested by in-house QC lab. COA, TDS, SDS provided with each shipment.
Regulatory & Compliance
EU
Complies with EU regulations and FAMI-QS standards.
USA
Meets FDA and AAFCO requirements.
China
Registered under Chinese MOA regulations.
International
Kosher, Halal, ISO certified. FTA forms available.
Safety & Handling
- Hazard Class: Generally non-hazardous. Refer to SDS for details.
- Storage: Room temperature, dry, sealed. Avoid strong oxidizers.
- Transport: Non-dangerous goods. Standard sea/air freight.
- SDS: Available on request at sales@xadditive.cn.
Frequently asked questions
MOQ?
MOQ is 1kg for trial, 25kg for regular orders. Free samples available.
Shelf life?
24 months from production date when stored properly.
Certifications?
ISO 9001, ISO 22000, HACCP, FAMI-QS, Kosher, Halal, COA, SDS, TDS.
How to get quote?
Email sales@xadditive.cn with your requirement. Reply within 30 minutes.
Request a quote & COA
Ask for the current specification sheet, a COA sample and a bulk quotation — reply within 30 minutes on working days.