Triisopropyl phosphite

Description

Triisopropyl phosphite · CAS 116-17-6 · C9H21O3P. UNII RJ7QU4YQUN. Boiling Point: 94 to 96 °C at 50 mm Hg; Boiling Point: BP: 74 °C at 20 mm Hg; 60 °C at 10 mm Hg; Density: 0.9063 g/cu cm at 20 °C.

Identification

CAS Registry Number	116-17-6
PubChem CID	8304
Molecular formula	C9H21O3P
IUPAC name	tripropan-2-yl phosphite
UNII (FDA)	RJ7QU4YQUN

Computed Descriptors

Molecular Weight	208.23
XLogP3	2.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	6
Exact Mass	208.12283153
Monoisotopic Mass	208.12283153
Topological Polar Surface Area	27.7
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	94 to 96 °C at 50 mm Hg
Boiling Point	BP: 74 °C at 20 mm Hg; 60 °C at 10 mm Hg
Density	0.9063 g/cu cm at 20 °C
Vapor Pressure	0.27 [mmHg]

Physical description & handling notes

• Colorless liquid; [HSDB]
• Colorless liquid
• Characteristic odor
• 165 °F Open Cup; 73.9 °C Closed Cup
• Soluble in alcohol, ether, chloroform
• Miscible with most organic solvents; insoluble in water

GHS Hazard Classification

Reported hazard statements	H301 (94%), H315 (100%)

Documented Uses

• Used as a lubricant additive, specialty solvent, antioxidant, and intermediate for insecticides; Could be used as a precursor for chemical weapons; [HSDB]
• Intermediate for insecticides, component of vinyl stabilizers, lubricant additive, specialty solvent.
• Reaction of phosphorus trichloride and isopropyl alcohol in the presence of a tertiary amine
• (1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS
• (1975) PROBABLY GREATER THAN 4.54X10+5 GRAMS
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4055]

Synonyms

TRIISOPROPYL PHOSPHITE; 116-17-6; tripropan-2-yl phosphite; Phosphorous acid, tris(1-methylethyl) ester; Tri-2-propyl phosphite; Triisopropoxyphosphine; Isopropyl phosphite, tri-; Triisopropylphosphite; Phosphorous acid, triisopropyl ester; Tri-2-propylphosphite; DTXSID9044372; RJ7QU4YQUN; NSC-6516; DTXCID7024372; RefChem:191700; 204-130-0

Frequently Asked Questions

What are the CAS number and molecular formula of Triisopropyl phosphite?

CAS 116-17-6; molecular formula C9H21O3P; molecular weight — g/mol.

What other names is Triisopropyl phosphite known by?

TRIISOPROPYL PHOSPHITE, 116-17-6, tripropan-2-yl phosphite, Phosphorous acid, tris(1-methylethyl) ester, Tri-2-propyl phosphite, Triisopropoxyphosphine.

Is Triisopropyl phosphite classified as hazardous?

Hazard statements reported: H301, H315.

What are the key physical properties of Triisopropyl phosphite?

Boiling Point: 94 to 96 °C at 50 mm Hg; Boiling Point: BP: 74 °C at 20 mm Hg; 60 °C at 10 mm Hg; Density: 0.9063 g/cu cm at 20 °C; Vapor Pressure: 0.27 [mmHg].

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.