6303-30-6

Basic information

• Product Name: diisobutyl hydrogen phosphate
• Synonyms: Diisobutyl hydrogen phosphate; Phosphoric acid, bis(2-methylpropyl) ester; bis(2-methylpropyl) hydrogen phosphate
• CAS NO: 6303-30-6
• Molecular Formula: C₈H₁₉O₄P
• Molecular Weight: 210.2078
• EINECS: 228-602-0
• Mol File: 6303-30-6.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 263.6°C at 760 mmHg
• Flash Point: 113.2°C
• Density: 1.074g/cm³
• Vapor Pressure: 0.00299mmHg at 25°C
• Refractive Index: 1.433
• CAS DataBase Reference: diisobutyl hydrogen phosphate(CAS DataBase Reference)
• NIST Chemistry Reference: diisobutyl hydrogen phosphate(6303-30-6)
• EPA Substance Registry System: diisobutyl hydrogen phosphate(6303-30-6)

Safety Data

• Hazardous Substances Data: 6303-30-6(Hazardous Substances Data)

Usage

General Description

Diisobutyl hydrogen phosphate is a chemical compound that is commonly used as a solvent and dispersant in various industries, such as in the production of agricultural chemicals, fuel additives, and pharmaceuticals. It is a clear, colorless liquid with a slight odor and is known for its high thermal stability and low volatility. Diisobutyl hydrogen phosphate is also used as an extraction agent for the separation and purification of metal ions, and as a corrosion inhibitor in the oil and gas industry. It is considered to be a relatively low toxicity chemical, but proper safety precautions should still be taken when handling and storing it.

Upstream product

• 17158-87-1 phosphorochloridic acid diisobutyl ester 
• 78-83-1 2-methyl-propan-1-ol 
• 7647-01-0 hydrogenchloride 
• 80937-33-3 oxygen 
• 1189-24-8 diisobutyl phosphite 
• 83561-06-2 tris(2-methyl-1-propyl) phosphate radical 
• 13529-77-6 phosphonic acid diisobutyl ester 
• 126-71-6 triisobutyl phosphate 

Downstream Products

• 1323441-62-8 C₁₅H₂₆NO₃P*ClH 
• 1323441-56-0 diisobutyl (isothiocyanatophenylmethyl)phosphonate 
• 57734-17-5 Cyclohexyl-tert-butyl-ammonium-diisobutylphosphat 

Relevant articles and documents

Reactivity of an electrophilic hypervalent iodine trifluoromethylation reagent with hydrogen phosphates - A mechanistic study

The electrophilic trifluoromethylation of hydrogen phosphates with the reagent trifluoromethyl-1,3-dihydro-3,3-dimethyl-1,2-benziodoxole (1) was studied by means of initial rates determined for pseudo first order setups and subsequent Taft analysis of the calculated relative rates. A positive polar sensitivity factor, indicative of a negative charge forming during the rate-determining step, was found for the whole data set.

Oxidative alkoxylation of zinc phosphide in alcoholic solutions of copper(II) chloride

Oxidative alkoxylation of Zn3P2 with the formation of valuable phosphoric and phosphorous acid esters occurred at a high rate and with a high selectivity in alcoholic solutions of CuCl2 under the action of oxygen at 30-60°C. Depending on the nature of the alcohol, two products were formed, namely, trialkyl phosphates (RO)3PO and dialkyl phosphites (RO)2HPO. Water favored the formation of dialkyl phosphates (RO)2(HO)PO. The kinetics and mechanism of the new catalytic reaction were studied, and the optimal conditions for conducting this reaction were found. The reaction proceeded in a topochemical mode by a separate redox mechanism.

Synthesis of dialkyl phosphites and trialkyl phosphates by oxidation of sodium hypophosphite by copper(II) chloride

Sodium hypophosphite oxidazies in alcoholic solution of CuCl2 at 50-80 deg C to give dialkyl phosphite and trialkyl phosphate.The yield of trialkyl phosphate increases with decreasing molecular weight of the alcohol and reaches ca. 100percent for MeOH and EtOH.The optimal conditions were found, and the mechanism of oxidation of NaPH2O2 to (RO)2PHO and (RO)3PO by copper(II) chloride was studied.The reaction proceeds via the formation of alkyl hypophosphite and copper(II) complexes with alkyl hypophosphite and dialkyl phosphite, which undergo inner-sphere two-electron redox decomposition with the liberation of dialkyl phosphite and trialkyl phosphate, respectively.