689386

Formaldehyde dibutyl acetal

puriss., ≥97.0% (GC)

• Synonym(s): Dibutyl formal, Butylal, Dibutoxymethane
• Linear Formula: CH₂(OCH₂CH₂CH₂CH₃)₂
• CAS Number: 2568-90-3
• Molecular Weight: 160.25
• EC Number: 219-909-0
• MDL number: MFCD00059270
• UNSPSC Code: 12352100
• PubChem Substance ID: 329761236
• NACRES: NA.22

Properties

• grade: puriss.
• Quality Level: 100
• assay: ≥97.0% (GC)
• form: liquid
• impurities: ≤0.25% water
• refractive index: n20/D 1.406
• density: 0.835 g/mL at 20 °C
• SMILES string: CCCCOCOCCCC
• InChI: 1S/C9H20O2/c1-3-5-7-10-9-11-8-6-4-2/h3-9H2,1-2H3
• InChI key: QLCJOAMJPCOIDI-UHFFFAOYSA-N

Description

General description

Formaldehyde dibutyl acetal is an acetal used in the manufacture of synthetic resins, antiseptics, deodorants, and fungicides. It is also used as a fuel additive to increase the octane number of gasoline or the n-cetane number of diesel fuels and reduce smoke and particulate emissions.

Application

Formaldehyde dibutyl acetal is a halogen-free and less toxic solvent that can be used to solubilize commercial low-density polyethylene (LDPE) samples to analyze molecular weight distribution using gel permeation chromatography (GPC). It can also be used as a reactant to prepare butoxymethyltriphenylphosphonium iodide, which is used for carbon homologation and also as a useful key intermediate in organic synthesis.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 143.6 °F - closed cup
• flash_point_c: 62 °C - closed cup
• ppe: Eyeshields, Gloves, type ABEK (EN14387) respirator filter