| Customization: | Available |
|---|---|
| CAS No.: | 6381-92-6 |
| Formula: | C10h14n2na2o8 2H2O |
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Disodium Edetate (EDTA Disodium Salt)
High-Purity Chelating Agent for Multisector Industrial Applications
Disodium Edetate , systematically named disodium 2,2',2'',2'''-(ethane-1,2-diyldinitrilo)tetraacetate dihydrate, is a white crystalline powder or granules with excellent water solubility (>100 g/L at 25°C). This dihydrate form exhibits stability under ambient conditions, non-hygroscopic properties, and weak acidity in aqueous solutions (pH 4-6 for 1% solution). Compliant with USP, EP, and FCC standards, it is a versatile chelator with low toxicity and broad regulatory acceptance.
Key Industrial Applications :
1. Food Industry :
- Approved preservative (E385) for color retention in canned foods, beverages, and dairy products.
- Antioxidant stabilizer to prevent lipid oxidation in oils and sauces.
2. Pharmaceuticals :
- Anticoagulant in blood collection tubes (EDTA dipotassium compatibility).
- Active ingredient in heavy metal detoxification drugs.
3. Cosmetics :
- Stabilizer in creams and lotions to inhibit metal-catalyzed degradation.
- Preservative booster in shampoos and hair dyes.
4. Water Treatment :
- Scale inhibitor in boilers and cooling towers.
- Corrosion control agent for industrial water systems.
5. Textile Processing :
- Dyeing auxiliary to improve color fastness by removing metal impurities.
- Peroxide stabilizer in fabric bleaching.
6. Laboratory Use :
- Analytical reagent for complexometric titrations (e.g., hardness testing).
- Buffer component in molecular biology workflows.
| Disodium edetate dihydrate Chemical Properties | |
| Melting point | 250 °C (dec.)(lit.) |
| Boiling point | >100 °C |
| density | 1.01 g/mL at 25 °C |
| bulk density | 700kg/m3 |
| refractive index | n20/D 1.363 |
| Fp | >100ºC |
| storage temp. | room temp |
| solubility | 3 M NaOH: 100 mg/mL |
| form | crystalline |
| pka | pK1:1.99;pK2:2.67;pK3:6.16;pK4:10.26 (25°C) |
| color | White |
| PH | 4.0-5.5 (25ºC, 0.1M in H2O) |
| Odor | Odorless |
| PH Range | 4 - 5 at 10 g/l at 23 °C |
| biological source | synthetic (organic) |
| Water Solubility | soluble |
| Safety Information | |
| Hazard Codes | Xi,Xn |
| Risk Statements | 36-52/53-36/38-36/37/38-22 |
| Safety Statements | 26-61-37/39-36/37/39-36 |
| WGK Germany | 2 |
| F | 3 |
| TSCA | Yes |
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