| Customization: | Available |
|---|---|
| CAS No.: | 139-33-3 |
| Formula: | C10h14n2na2o8 |
|
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Product Name: Ethylenediaminetetraacetic acid disodium salt
CAS No.: 139-33-3
EINECS : 205-358-3
Molecular Formula: C10H14N2Na2O8
Molecular Weight: 292.24
Appearance: white crystal powder
Disodium ethylenediamine tetraacetic acid, also known as EDTA-2Na, is a good compound in chemistry. Chemical formula C10H14N2Na2O8, molecular weight 336.206, it has six coordination atoms, the formation of the complex called chelate, EDTA is often used in coordination titration, generally to determine the content of metal ions. EDTA has important applications in dyes, food, medicine and other industries.
Specification of EDTA:
|
Content% |
≥99.5% |
|
Chloride(Cl)% |
≤ 0.01% |
|
Sulfate(SO4)% |
≤ 0.03% |
|
Metal chelate(Pb)% |
≤ 0.001% |
|
Iron(Fe)% |
≤ 0.001% |
|
Dry and loss(103-107°C)% |
≤ 0.2% |
|
Chelate : mgCaCO3/g |
339 min |
|
NTA% |
≤ 0.1% |
|
Appearance |
White crystal powder |
Among the salts of EDTA, disodium salt is the most important. It is an important complexing agent. Used in electroless copper plating, gold plating, lead-tin alloy plating, electrochemical polishing of steel parts and solution before copper silver plating, EDTA-Na can also be used instead. Also used in detergents, liquid soap, shampoo, agricultural chemical sprays, color sensitive materials washing processing bleaching fixing solution, water purification agent, PH regulator, coagulant and so on. In the reduction initiation system of styrene butadiene rubber polymerization, disodium EDTA, as a component of the active agent, is mainly used to complex ferrous ions and control the polymerization rate.
Edta disodium can be used in jams, vegetable purees or sauces (except tomato sauce); For preserved fruits (sweet potato preserved fruits only), pickled vegetables, canned vegetables, canned nuts and seeds, canned grains; For compound seasonings; For beverages (except packaged drinking water).
Calcium disodium EDTA can be used as an antioxidant in compound seasonings.
Package :In 25 Kg net woven bags or craft-paper bags.
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