Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: EDTA
Alias: Ethylenediaminetetraacetic acid
CAS No.: 60-00-4
Molecular Formula: C10H16N2O8
Molecular Weight: 292.24
2. Physical & Chemical Properties
Physical Properties
- Appearance: White crystalline powder, odorless
- Solubility: Insoluble in cold water, slightly soluble in hot water; insoluble in ethanol, acetone, ether; soluble in dilute alkaline solution
- Melting Point: Decomposes above 240 ℃ without clear melting point
- Hygroscopy: Non-hygroscopic under normal humidity
- Crystal form: Fine granular crystal recrystallized from water
Chemical Properties
- Molecular structure: Tetracarboxylic acid containing two amino groups, multi-dentate chelating ligand
- Amphiprotic acid: Four carboxyl groups, can generate tetra-sodium salt, di-sodium salt with alkali
- Universal chelation: Forms stable water-soluble chelate complexes with almost all metal ions (Ca, Mg, Fe, Cu, Zn, Pb etc.)
- Acid-base stability: Chelate structure stable in neutral/weak acid environment; strong concentrated acid can decompose metal complex
- Thermal stability: Stable below 200 ℃; high temperature heating causes decarboxylation degradation
- Photostability: Light stable, no discoloration during sealed storage
- Compatibility: Compatible with most water-soluble additives, buffer reagents; incompatible with high concentration strong oxidants
3. Main Application Fields
1. Water Treatment Industry (Core Application)
- Scale inhibitor, metal ion masking agent for circulating cooling water, boiler water
- Remove calcium/magnesium hardness ions to prevent pipeline scaling
2. Detergent & Daily Chemicals
- Chelating auxiliary for laundry detergent, dishwashing liquid, shampoo; soften water, improve decontamination effect
- Stabilizer to avoid discoloration caused by metal ion catalysis
3. Analytical Chemistry Reagent
- Standard titration reagent for complexometric titration of metal ions
- Masking agent for eliminating metal interference in spectrophotometry, ion chromatography
4. Cosmetic & Pharmaceutical Additive
- Cosmetic preservative stabilizer, prevent active ingredients oxidative deterioration
- Metal detoxification auxiliary raw material in pharmaceutical preparations
5. Electroplating Industry
Complexing agent for electroplating solution, stabilize metal ion concentration to obtain smooth uniform coating
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 60-00-4 |
| Molecular Formula | C10H16N2O8 |
| Molecular Weight | 292.24 |
| Appearance | White crystalline powder |
| HPLC Purity | Industrial Grade ≥99.0%; Analytical Grade ≥99.5% |
| Moisture Content (KF) | ≤0.30% |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Bulk Package | 25kg PE lined woven bag, plastic barrel |
| Storage Condition | Hermetic cool dry warehouse ≤25℃; isolate humid air |
| Transportation Rule | Organic chelating solid, moisture-proof sealed packaging |
| Shelf Life | 36 months under intact sealed packaging |
...
Product
