Ammonium citrate dibasic
CAS 3012-65-5
EC 221-146-3
Formula C6H8O7.2H3N
MW 226.18 g/mol
Salts & Minerals Food & NutritionPersonal Care & CosmeticsWater Treatment Chelation & SequestrationpH Regulation & BufferingAntioxidant & StabilizerPreservation & Biocide
Description
Ammonium Citrate Dibasic (CAS 3012-65-5, EC 221-146-3), also known as Diammonium Citrate or by the trade name Microstop, is the diammonium salt of citric acid with the molecular formula C6H8O7.2H3N. It carries no assigned E-code and is classified under HS code 29212900.
In water treatment, it functions as a chelating agent that binds divalent metal ions such as calcium and iron, preventing scale formation and improving process efficiency. In personal care formulations, it acts as a pH buffer and skin conditioner, stabilising product pH within a defined range. Food-grade applications leverage its antimicrobial and heat-stabilising properties in processed formulations.
Ammonium Citrate Dibasic is available in food-grade and technical-grade solid powder forms, with compliance options meeting FCC and REACH requirements. Standard packaging includes 25 kg bags, with documentation available to support regulatory submissions across EU markets.
In water treatment, it functions as a chelating agent that binds divalent metal ions such as calcium and iron, preventing scale formation and improving process efficiency. In personal care formulations, it acts as a pH buffer and skin conditioner, stabilising product pH within a defined range. Food-grade applications leverage its antimicrobial and heat-stabilising properties in processed formulations.
Ammonium Citrate Dibasic is available in food-grade and technical-grade solid powder forms, with compliance options meeting FCC and REACH requirements. Standard packaging includes 25 kg bags, with documentation available to support regulatory submissions across EU markets.
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 (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29212900 |
| UN Number | 9087 |
| WGK (Germany) | 3 |
Other Names
Diammonium Citrateammonium hydrogen citrateMicrostopAMMONIUM CITRATECITRIC ACID, DIAMMONIUMAMMONIUM HYDROGENCITRATE
Related Products
Raw Materials
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