174-79-8

Basic information

• Product Name: 2,6-dioxaspiro[3.3]heptane
• Synonyms: 2,6-dioxaspiro[3.3]heptane;2,6-Dioxaspiro[3.3]heptane - D6196
• CAS NO: 174-79-8
• Molecular Formula: C₅H₈O₂
• Molecular Weight: 100.12
• Mol File: 174-79-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 108.3 °C at 760 mmHg
• Flash Point: 19.6 °C
• Appearance: /
• Density: 1.15 g/cm³
• Vapor Pressure: 30.5mmHg at 25°C
• Refractive Index: 1.479
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 2,6-dioxaspiro[3.3]heptane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-dioxaspiro[3.3]heptane(174-79-8)
• EPA Substance Registry System: 2,6-dioxaspiro[3.3]heptane(174-79-8)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 174-79-8(Hazardous Substances Data)

Usage

General Description

2,6-Dioxaspiro[3.3]heptane, also known as p-dioxane, is a bicyclic organic compound. It is a colorless liquid with a pleasant odor and is commonly used as a solvent in the laboratory. 2,6-Dioxaspiro[3.3]heptane has a spirocyclic structure and is derived from the compound dioxane. It is highly flammable and may cause irritation upon contact with skin or eyes. This chemical also has some potential applications in the pharmaceutical and perfume industries due to its ability to dissolve a wide range of substances. Additionally, it is used in the synthesis of various organic compounds.

InChI:InChI=1/C5H8O2/c1-5(2-6-1)3-7-4-5/h1-4H2

Upstream product

• 3296-90-0 bis(bromomethyl)bis(hydroxymethyl)methane 
• 2209-86-1 2,2-bis(chloromethyl)-1,3-propanediol 
• 64-17-5 ethanol 
• 115-77-5 Pentaerythritol 
• 1522-92-5 2,2-bis(bromomethyl)-3-bromo-propan-1-ol 
• 4351-77-3 3-(hydroxymethyl)-3-chloromethyl oxetane 

Downstream Products

• 89181-72-6 3,3-bis(nitratomethyl)oxetane 

Relevant articles and documents

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Chemical transformation of 3-bromo-2,2-bis(bromomethyl)-propanol under basic conditions

The mechanism of the spontaneous decomposition of 3-bromo-2,2- bis(bromomethyl)propanol (TBNPA) and the kinetics of the reaction of the parent compound and two subsequent products were determined in aqueous solution at temperatures from 30 to 70 °C and pH from 7.0 to 9.5. TBNPA is decomposed by a sequence of reactions that form 3,3-bis(bromomethyl)oxetane (BBMO), 3-bromomethyl-3-hydroxymethyloxetane (BMHMO), and 2,6-dioxaspiro[3.3]-heptane (DOH), releasing one bromide ion at each stage. The pseudo-first-order rate constant of the decomposition of TBNPA increases linearly with the pH. The apparent activation energy of this transformation (98 ± 2 KJ/mol) was calculated from the change of the effective second-order rate constant with temperature. The pseudoactivation energies of BBMO and BMHMO were estimated to be 109 and 151 KJ/mol, respectively. Good agreement was found between the rate coefficients derived from changes in the organic molecules concentrations and those determined from the changes in the Br- concentrations. TBNPA is the most abundant semivolatile organic pollutant in the aquitard studied, and together with its byproducts they posess an environmental hazard. TBNPA half-life is estimated to be about 100 years. This implies that high concentrations of TBNPA will persist in the aquifer long after the elimination of all its sources.