EDTA二钠盐二水合物

Description

EDTA disodium salt dihydrate · CAS 6381-92-6 · C10H16N2O8. UNII 9G34HU7RV0. Melting Point: 237; Melting Point: 245 °C; Solubility: 1000000.

Identification

CAS Registry Number	6381-92-6
PubChem CID	6049
Molecular formula	C10H16N2O8
IUPAC name	2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid
UNII (FDA)	9G34HU7RV0

Computed Descriptors

Molecular Weight	292.24
XLogP3	-5.9
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	10
Rotatable Bond Count	11
Exact Mass	292.09066547
Monoisotopic Mass	292.09066547
Topological Polar Surface Area	156
Heavy Atom Count	20
Formal Charge	0

Physical & Chemical Properties

Melting Point	237
Melting Point	245 °C
Solubility	1000000
Solubility	In water, 1,000 mg/L at 25 °C
Solubility	9.26e+00 g/L
LogP	-2.6
Decomposition	220-245 °C
Dissociation Constants	pKa = 0.26
Other Experimental Properties	Decomposition at 240 °C
Color Additive Status	73.1

Physical description & handling notes

• Ethylenediamine tetraacetic acid is a colorless crystalline solid. It is slightly soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in chemical analysis, to make detergents and cleaning compounds, and for many other uses.
• CBI; Other Solid; Dry Powder
• Liquid; Dry Powder; Liquid; Dry Powder; CBI; Large Crystals
• Clear crystals; [CAMEO]
• White odorless solid; [JECFA] White odorless crystals; [Mallinckrodt Baker MSDS]
• Solid

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Foods, Drugs FDA Substance added to food: FLAVORING AGENT OR ADJUVANT FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTIOXIDANT_SYNERGIST; PRESERVATIVE; SEQUESTRANT; SYNERGIST: Food Additives EDTA, DISODIUM
GHS notification summary	0.4% (6 / 1452)

GHS Hazard Classification

GHS notification summary	0.4% (6 / 1452)
Reported hazard statements	H319, H332 (24.5%), H373 (23.5%), H302 (43.8%), H312 (26.9%), H315 (32.5%), H335 (31.8%), H412 (30.2%)

Documented Uses

• Used in chemical analysis and to make detergents; [CAMEO] Used therapeutically as a metal chelating agent; Also used as a food preservative, blood anticoagulant, and a chelating agent in personal care products and in the pulp and paper industry; [Merck Index, 3517] Used therapeutically to remove (chelate) metal ions in the body; [HSDB] Used in photography (color developing baths) and holography; [www.ci.tucson.az.us/arthazards/medium.html]
• Pulp and Paper Processing [Category: Industry]
• Photographic Processing [Category: Other]
• Using Disinfectants or Biocides [Category: Clean]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• For more Uses (Complete) data for ETHYLENEDIAMINE TETRAACETIC ACID (13 total), please visit the HSDB record page.

Synonyms

EDTA; Ethylenediaminetetraacetic acid; Edetic acid; 60-00-4; Edathamil; Sequestrol; Havidote; Titriplex; Cheelox; EDTA acid; Sequestrene aa; Versene acid; Trilon BS; Gluma cleanser; Sequestric acid; Warkeelate acid

Frequently Asked Questions

What are the CAS number and molecular formula of EDTA disodium salt dihydrate?

CAS 6381-92-6; molecular formula C10H16N2O8; molecular weight — g/mol.

What other names is EDTA disodium salt dihydrate known by?

EDTA, Ethylenediaminetetraacetic acid, Edetic acid, 60-00-4, Edathamil, Sequestrol.

What is the regulatory status of EDTA disodium salt dihydrate?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Foods, Drugs; FDA Substance added to food: FLAVORING AGENT OR ADJUVANT; FDA Cumulative Estimated Daily Intake (CEDI): FCS.

Is EDTA disodium salt dihydrate classified as hazardous?

0.4% of GHS notifications report no hazard classification (6 of 1452).

What are the key physical properties of EDTA disodium salt dihydrate?

Melting Point: 237; Melting Point: 245 °C; Solubility: 1000000; Solubility: In water, 1,000 mg/L at 25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.