Overview
Zinc citrate (CAS 546-46-3 ) is the zinc salt of citric acid, supplying bioavailable zinc across pharmaceutical, nutritional, and personal care applications. It functions as both a mineral source and a mild antimicrobial agent.
This makes it a practical dual-function ingredient for formulators working across multiple categories. In oral care products such as toothpastes and mouthwashes, it controls tartar formation and reduces oral bacteria.
It is one of the most established actives in this segment. Dietary supplements and functional foods use it as a zinc source with favorable absorption characteristics compared to inorganic zinc salts.
In pharmaceutical tablet and capsule formulations, it serves as a mineral supplement active where controlled zinc delivery is required. Personal care and cosmetic formulators incorporate it into deodorants.
It is also used in skin preparations for its antimicrobial and astringent properties. The product is supplied as a white to off-white powder, typically in anhydrous or trihydrate form for various uses.
The trihydrate is the more common commercial grade. Standard grades include food-grade and USP / BP -compliant specifications to meet pharmaceutical and nutraceutical requirements for global markets.
Technical-grade material is available for industrial applications including polymer stabilization and chelation uses. This versatile compound ensures high purity and performance across diverse manufacturing sectors.
Contact us for supply of Zinc citrate
Physical Properties
| Color | colorless powder |
| Odor | Odorless |
| Form | colorless powder |
| Water Solubility | slightly soluble H2O; soluble dilute mineral acids and alkali hydroxides [MER06] |
| Log P | -1.721 (est) |
Safety & Handling
Warning GHS07 GHS09 Hazard Statements H319 Causes serious eye irritation H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H411 Toxic to aquatic life with long lasting effects Precautionary Statements P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P391 Collect spillage. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Other Names
Related Products
Chemical Properties
- CAS Number
- 546-46-3
- EC Number
- 208-901-2
- Mol. Weight
- 574.3
- Category
- Chelating Agents