乙二胺四乙酸三钠

Description

Trisodium edetate · CAS 150-38-9 · C10H13N2Na3O8. UNII 420IP921MB. Solubility: 5 to 10 mg/mL at 70.7 °F (NTP, 1992).

Identification

CAS Registry Number	150-38-9
PubChem CID	9008
Molecular formula	C10H13N2Na3O8
IUPAC name	trisodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate
UNII (FDA)	420IP921MB

Computed Descriptors

Molecular Weight	358.19
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	10
Rotatable Bond Count	8
Exact Mass	358.03649822
Monoisotopic Mass	358.03649822
Topological Polar Surface Area	164
Heavy Atom Count	23
Formal Charge	0
Complexity	351

Physical & Chemical Properties

Solubility	5 to 10 mg/mL at 70.7 °F (NTP, 1992)

Physical description & handling notes

• Ethylenediamine tetraacetic acid, trisodium salt is an odorless white crystalline powder. pH (1% aqueous solution) 9.3. pH (10% aqueous solution) about 8.3-8.7. (NTP, 1992)
• Dry Powder; Liquid
• White odorless solid; [CAMEO] Fine white crystals; [Sigma-Aldrich MSDS]
• greater than 572 °F (NTP, 1992)
• 0.7215 (NTP, 1992) - Less dense than water; will float

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Trisodium EDTA) -> CIR (Cosmetic Ingredient Review)
GHS notification summary	1% (2 / 197)

GHS Hazard Classification

GHS notification summary	1% (2 / 197)
Reported hazard statements	H302, H332 (53.3%), H318 (66%), H319 (25.9%), H373 (66%)

Documented Uses

• Acid and Alkali Cleaning of Metals [Category: Clean]
• Electroplating [Category: Plate]
• Pulp and Paper Processing [Category: Industry]
• Using Disinfectants or Biocides [Category: Clean]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Surfactant (surface active agent)

Synonyms

Edetate trisodium; 150-38-9; Trisodium EDTA; EDTA trisodium salt; Trisodium ethylenediaminetetraacetate; Versene-9; Edetate Trisodium [USAN]; CCRIS 294; UNII-420IP921MB; EDTA trisodium salt (trihydrate); 420IP921MB; Trisodium hydrogen ethylenediaminetetraacetate; EINECS 205-758-8; Edetate trisodium (USAN); NSC-756746; AI3-18050

Frequently Asked Questions

What are the CAS number and molecular formula of Trisodium edetate?

CAS 150-38-9; molecular formula C10H13N2Na3O8; molecular weight — g/mol.

What other names is Trisodium edetate known by?

Edetate trisodium, 150-38-9, Trisodium EDTA, EDTA trisodium salt, Trisodium ethylenediaminetetraacetate, Versene-9.

What is the regulatory status of Trisodium edetate?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetic ingredients (Trisodium EDTA) -> CIR (Cosmetic Ingredient Review).

Is Trisodium edetate classified as hazardous?

1% of GHS notifications report no hazard classification (2 of 197).

What are the key physical properties of Trisodium edetate?

Solubility: 5 to 10 mg/mL at 70.7 °F (NTP, 1992).

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.