Preparation and typical features of EDTA-2Na CAS 139-33-3
It can be prepared by the action of EDTA and sodium hydroxide. Ethylenediaminetetraacetic acid, also called EDTA, is a good complexing agent in chemistry. It has six coordinating atoms and the complex formed is called a chelate. EDTA is often used in coordination titration, generally for the determination of metals The content of ions.

 
Features of EDTA-2Na CAS 139-33-3
1. EDTA has a wide range of coordination properties and can form a stable chelate with almost all metal ions.
Advantages: It provides the possibility of extensive determination of elements (better than acid-base and precipitation methods).
Disadvantages: easy interference between multiple components-selectivity.
2. The coordination ratio between EDTA and the formed M-EDTA is mostly 1:1.
3. Most chelates are charged, so they are soluble in water and react quickly.

Toxicity protection of EDTA-2Na CAS 139-33-3: This product has low toxicity. The oral LD50 for rats is 2000mg/kg.
Packing: Packed in a carton or sack lined with double-layer plastic bags, 80kg per bag.
Physical and chemical properties: white crystalline powder. Low toxicity, soluble in water, pH value of 5% aqueous solution is 4-6. It is acidic. Hardly soluble in alcohol.
Mainly used as a complexing agent.

Name: EDTA 2Na; EDTA Disodium salt
CAS: 139-33-3
Molecular Formula: C10H16N2Na2O8
Molecular Weight: 338.221
HomeCASCAS 139 CAS 139-33-3

Names and Identifiers
Name Ethylenediaminetetraacetic acid disodium salt
Synonyms Ethylenediaminetetraacetic acid disodium salt solution
disodium dihydrogen ethylenediaminetetraacetate
Disodium Edetate
Edta di sodium salt
disodium 2,2′-{ethane-1,2-diylbis[(carboxymethyl)imino]}diacetate (non-preferred name)
disodium 2-[2-(bis(carboxymethyl)amino)ethyl-(carboxymethyl)amino]acetic acid
Disodium EDTA
CAS 139-33-3
EINECS 205-358-3
InChI InChI=1/C10H16N2O8.2Na/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;/q;2*+1

Physico-chemical Properties
Molecular Formula C10H16N2Na2O8
Molar Mass 338.221 g/mol
Melting Point 237-245℃
Boling Point 614.2°C at 760 mmHg
Flash Point 325.2°C
Vapor Presure 1.15E-16mmHg at 25°C

Risk and Safety
Hazard Symbols Xn – Harmful
Harmful
Risk Codes R22 – Harmful if swallowed
R36/37/38 – Irritating to eyes, respiratory system and skin.
Safety Description S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 – Wear suitable gloves and eye/face protection

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CAS 139-33-3, EDTA-2Na, C10H16N2Na2O8
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