| Identification | More | [Name]
Triisopropyl phosphite | [CAS]
116-17-6 | [Synonyms]
PHOSPHOROUS ACID TRIISOPROPYL ESTER
phosphorous acid tris(1-methylethyl) ester
TRI-I-PROPYLPHOSPHITE
Triisopropoxyphosphine
TRIISOPROPYL PHOSPHITE
TRI-ISO-PROPYL PHOSPHONATE
Isopropyl phosphite, ((C3H7O)3P)
Isopropyl phosphite, tri-
isopropylphosphite((c3h7o)3p)
Tri-2-propyl phosphite
tri-2-propylphosphite
tri-isopropylphosphit
Triisopropyl phosphite tech.
TRISOPROPYL PHOSHITE
Tri-i-propylphosphite,min.94%
TRIISOPROPYLPHOSPHITE,TECHNICAL
Triisopropyl phosphite, 90+%
Triisopropylphosphite, 95+%
Tripropan-2-yl phosphite
Tri-i-propylphosphite, min. 94% | [EINECS(EC#)]
204-130-0 | [Molecular Formula]
C9H21O3P | [MDL Number]
MFCD00008874 | [Molecular Weight]
208.24 | [MOL File]
116-17-6.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless liquid; characteristic odor. Miscible with most common
organic solvents; insoluble in water; hydrolyzes
slowly in water; exposure to air should be minimum;
high thermal stability. Combustible. | [Boiling point ]
63-64 °C11 mm Hg(lit.) | [density ]
0.844 g/mL at 25 °C(lit.) | [vapor pressure ]
<2 mm Hg ( 20 °C)
| [refractive index ]
n20/D 1.411(lit.)
| [Fp ]
154 °F
| [storage temp. ]
-20°C | [solubility ]
Insoluble in water, soluble in benzene and other organic solvents. | [form ]
Liquid | [color ]
Clear | [Specific Gravity]
0.844 | [Water Solubility ]
Insoluble | [Sensitive ]
Moisture Sensitive | [BRN ]
1701528 | [InChI]
1S/C9H21O3P/c1-7(2)10-13(11-8(3)4)12-9(5)6/h7-9H,1-6H3 | [InChIKey]
SJHCUXCOGGKFAI-UHFFFAOYSA-N | [SMILES]
CC(C)OP(OC(C)C)OC(C)C | [LogP]
2 | [Uses]
Intermediate for insecticides, component of
vinyl stabilizers, lubricant additive, specialty solvent. | [CAS DataBase Reference]
116-17-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Phosphorous acid, tris(1-methylethyl) ester(116-17-6) | [Storage Precautions]
Moisture sensitive | [EPA Substance Registry System]
116-17-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,F | [Risk Statements ]
R25:Toxic if swallowed.
R38:Irritating to the skin.
R68:Possible risk of irreversible effects. | [Safety Statements ]
S37:Wear suitable gloves .
S46:If swallowed, seek medical advice immediately and show this container or label .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves . | [RIDADR ]
UN 3278 6.1/PG 3
| [WGK Germany ]
3
| [RTECS ]
TH2800000
| [F ]
1-10 | [Hazard Note ]
Toxic/Flammable/Moisture Sensitive/ | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29209090 | [Storage Class]
6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | [Hazard Classifications]
Acute Tox. 3 Oral
Skin Irrit. 2 | [Hazardous Substances Data]
116-17-6(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Chemical Properties]
Colorless liquid; characteristic odor. Miscible with most common
organic solvents; insoluble in water; hydrolyzes
slowly in water; exposure to air should be minimum;
high thermal stability. Combustible. | [Synthesis]
A solution of 180.3 g (3 mol) of anhydrous isopropyl alcohol and 447 g (477 ml, 3 mol) of freshly distilled diethylaniline in 1 l of dry petroleum ether (b.p. 40–60°) is placed in a 3-l three-necked flask fitted with a sealed stirrer, an efficient reflux condenser, and a 500-ml dropping funnel, which is charged with a solution of 137.5 g (87.5 ml, 1 mol) of freshly distilled phosphorus trichloride in 400 ml of dry petroleum ether (b.p. 40–60°). The flask is cooled in a cold-water bath. With vigorous stirring, the phosphorus trichloride solution is introduced at such a rate that the mixture boils gently towards the end of the addition. After the addition, which requires about 30 minutes, the mixture is heated under gentle reflux for about 1 hour with stirring. The suspension, containing a copious precipitate of diethylaniline hydrochloride, is then cooled and filtered with suction through a sintered glass funnel. The cake of the amine salt is well compressed and washed with five 100-ml. portions of dry petroleum ether (b.p. 40–60°). The filtrate and washings are combined and concentrated by distillation at water-bath temperature through a 75-cm. Vigreux column. The residue is transferred to a pear-shaped flask and distilled under a water-pump vacuum through a 75-cm. Vigreux column. After a small fore-run, the product Triisopropyl phosphite is collected. It has the following properties: b.p. 43.5°/1.0 mm; nD25 1.4080; d417 0.917.
| [Purification Methods]
Distil it from sodium, under vacuum, through a column packed with glass helices. (This removes any dialkyl phosphonate.) [Ford-Moore & Williams J Chem Soc 1465 1947, Arbuzov Chem Ber 38 1171 1905, see Verkade & Coskren in Organo Phosphorus Compound (Kosolapoff & Maier eds) Wiley Vol 2 pp 1-187 1972, Beilstein 1 IV 1476.] |
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