Overview
Diammonium citrate (CAS 3012-65-5 ), also known as dibasic ammonium citrate, is a water-soluble ammonium salt of citric acid used across food, personal care, and industrial applications. It serves as a buffering agent, chelator, and pH regulator.
This chemical controls acidity in formulations and binds metal ions that would otherwise destabilize finished products. In food and beverage production, it functions as an acidulant and buffering salt to maintain target pH ranges during processing.
Personal care formulators incorporate it into rinse-off and leave-on products where metal ion sequestration prevents discoloration and preservative degradation. This ensures the long-term stability and aesthetic quality of cosmetic formulations.
Water treatment applications rely on its chelating action to complex calcium, magnesium, and heavy metal ions. This process significantly improves the overall performance and efficiency of various industrial treatment chemicals.
It also appears in fertilizer formulations as a soluble nitrogen and citrate source compatible with micronutrient blends. This versatility makes it a valuable component in modern agricultural and horticultural nutrient management systems.
The product is supplied as a white crystalline powder or granule. Food-grade material is available to FCC specification, while technical-grade product is offered for industrial and agricultural use to meet specific requirements.
Bulk supply is standard in 25 kg bags, with larger packaging available for industrial volumes. We ensure consistent quality and reliable logistics for all global shipments of this essential chemical compound.
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Physical Properties
| Melting Point | 185 °C (dec.)(lit.) |
| Boiling Point | 100 °C(lit.) |
| Density | 1.48 g/cm³ @ Temp: 25 °C |
| Appearance | Ammonium citrate (various forms) is a white powdery material with a slight ammonia-like odor. |
| Color | White |
| Odor | Slight ammonia odor |
| Form | Solid |
| Water Solubility | Soluble in water. Slightiy soluble in alcohol. |
| Refractive Index | 1.4650 (estimate) |
| pH | 4.0-5.5 (25℃, 1M in H2O) |
| Log P | -2.840 |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29212900 |
| UN Number | 9087 |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 3012-65-5
- EC Number
- 221-146-3
- Mol. Weight
- 226.18
- HS Code
- 29212900
- Category
- Chelating Agents