Copper Citrate
Copper Citrate
Detailed Information
| Copper Citrate Product Quality Indicators | ||||
| Analysis items | Specification | |||
| Feed Grade | Pharmaceutical Grade | Industrial Grade | Test Method/Remarks | |
| Copper Content (Cu) | 34.0-35.5% | ≥99.9% (calculated as Cu₃(C₆H₅O₇)₂) | 33.0-35.0% | GB/T 27983-2011 / USP Chemical Reagent Standard |
| Solubility | Sparingly soluble in cold water, easily soluble in hot water | Conforms to the solubility standard of the pharmacopoeia | Moderately soluble in cold water | Test in 25℃ aqueous solution |
| Heavy Metals (calculated as Pb) | ≤20ppm | ≤10ppm | ≤50ppm | Atomic Absorption Method (Total limit of Pb+As+Cd+Hg for feed grade) |
| Arsenic (As) | ≤2ppm | ≤1ppm | ≤5ppm | Hydride Atomic Fluorescence Method |
| Lead (Pb) | ≤5ppm | ≤2ppm | ≤10ppm | ICP-MS |
| Loss on Drying | ≤3.0% (105℃) | ≤1.5% (110℃) | ≤5.0% | Constant Weight Method in Drying Oven |
| Insoluble in Water | ≤0.2% | ≤0.05% | ≤0.8% | Filtration Weighing Method |
| Sulfate (SO₄) | ≤0.05% | ≤0.01% | ≤0.1% | Nephelometry |
| Chloride (Cl) | ≤0.02% | ≤0.005% | ≤0.1% | Silver Nitrate Titration |
| pH Value (5% Aqueous Solution) | 3.5-5.0 | 3.8-4.5 | 3.0-6.0 | pH Meter Determination |
Application Scope
1、Agriculture: Fungicide (for preventing fungal diseases of crops), trace element fertilizer (supplement copper).
2、Industry: Electroplating solution additive (enhance coating adhesion), metal surface treatment (corrosion inhibitor).
3、Chemicals: Catalyst (organic synthesis), dye fixing agent (textile printing and dyeing).
4、Environmental Protection: Wastewater treatment (heavy metal precipitation), algae inhibitor (water purification).
Label Description
- Food-grade Copper Citrate
- Industrial-grade Copper Citrate
- Pharmaceutical-grade Copper Citrate