亚磷酸二(2-乙基己基)酯

Description

bis(2-ethylhexyl) phosphite · CAS 3658-48-8 · C16H34O3P+. UNII J9H3L1N82V. Boiling Point: 150 °C at 1 mm Hg; Density: 0.93 g/cu cm at 25 °C; Vapor Pressure: 0.000058 [mmHg].

Identification

CAS Registry Number	3658-48-8
PubChem CID	6327514
Molecular formula	C16H34O3P+
IUPAC name	bis(2-ethylhexoxy)-oxophosphanium
UNII (FDA)	J9H3L1N82V

Computed Descriptors

Molecular Weight	305.41
XLogP3	6.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	14
Exact Mass	305.22455694
Monoisotopic Mass	305.22455694
Topological Polar Surface Area	35.5
Heavy Atom Count	20
Formal Charge	1

Physical & Chemical Properties

Boiling Point	150 °C at 1 mm Hg
Density	0.93 g/cu cm at 25 °C
Vapor Pressure	0.000058 [mmHg]
Vapor Pressure	0.000058 mm Hg at 25 °C
Viscosity	6.6 cSt at 25 °C

Physical description & handling notes

• Liquid
• Colorless liquid; Insoluble in water; [HSDB]
• Mobile, colorless liquid
• Mild odor
• Boiling point: 309 °C (Extrapolated)
• Insoluble in water, hydrolyzes very slowly; miscible with most common organic solvents

Regulatory Status

GHS notification summary	9.1% (7 / 77)

GHS Hazard Classification

GHS notification summary	9.1% (7 / 77)
Reported hazard statements	H315 (90.9%), H318 (14.3%), H319 (76.6%), H335 (74%)

Documented Uses

• Used as an additive for extreme pressure lubricants and adhesives, a corrosion inhibitor, an antioxidant, a textile finishing agent, a chemical intermediate for organic phosphorus compounds, and a simulant to test chemical warfare dispersion systems; [HSDB]
• Working with Glues and Adhesives [Category: Other]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Lubricant additive, intermediate, and adhesive
• Corrosion inhibitor; antioxidant; additive for extreme pressure lubricants & adhesives; textile finishing agent; chemical intermediate for organic phosphorus compounds
• ... Chemical warfare ... simulant ... /From table/

Synonyms

Bis(2-ethylhexyl) phosphite; 3658-48-8; Bis(2-ethylhexyl) phosphonate; BIS(2-ETHYLHEXYL) HYDROGEN PHOSPHITE; Diisooctyl phosphite; Chelex H 8; Di-2-ethylhexyl phosphite; Phosphonic acid, bis(2-ethylhexyl) ester; Bis(2-ethylhexyl) phosphonic acid; Di-2-ethylhexyl hydrogen phosphite; Phosphorous acid, bis(2-ethylhexyl) ester; DTXSID2044927; NSC 2664; J9H3L1N82V; HSDB 2607; NSC-2664

Frequently Asked Questions

What are the CAS number and molecular formula of bis(2-ethylhexyl) phosphite?

CAS 3658-48-8; molecular formula C16H34O3P+; molecular weight — g/mol.

What other names is bis(2-ethylhexyl) phosphite known by?

Bis(2-ethylhexyl) phosphite, 3658-48-8, Bis(2-ethylhexyl) phosphonate, BIS(2-ETHYLHEXYL) HYDROGEN PHOSPHITE, Diisooctyl phosphite, Chelex H 8.

Is bis(2-ethylhexyl) phosphite classified as hazardous?

9.1% of GHS notifications report no hazard classification (7 of 77).

What are the key physical properties of bis(2-ethylhexyl) phosphite?

Boiling Point: 150 °C at 1 mm Hg; Density: 0.93 g/cu cm at 25 °C; Vapor Pressure: 0.000058 [mmHg]; Vapor Pressure: 0.000058 mm Hg 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.