Propylene glycol butyl ether
Propylene glycol butyl ether (CAS 5131-66-8), with the linear formula CH3(CH2)3OC3H6OH and a molecular weight of 132.20 g/mol, is a versatile organic solvent. It is valued for its good solvency for various resins and its characteristic mild ether-like odour. This compound is primarily used as a coalescing agent in waterborne coatings and as a solvent in cleaners and inks, contributing to improved film formation and performance.
- IUPAC
- DOWANOL® PnB
- Synonyms
- 2-Butoxy-1-methylethoxy ethanol2-(2-butoxyethoxy)propan-1-ol1-Methoxy-2-butoxypropanen-Butyl glycol ether PP-series glycol ethern-butyl propylene glycol ether
Coalescing Agent in Coatings
Propylene glycol butyl ether acts as an effective coalescing agent in latex paints and other waterborne coatings. It aids in the film formation process by temporarily plasticizing polymer particles, allowing them to fuse into a continuous film upon drying.
Solvent in Cleaning Products
Its solvency properties make it suitable for use in industrial and household cleaning formulations. It helps to dissolve grease, oils, and other stubborn soils, enhancing the efficacy of cleaning agents.
Ink Formulations
This ether is employed as a solvent in various printing ink formulations. It contributes to appropriate drying times and good substrate wetting, ensuring quality print results.
Chemical Intermediate
Propylene glycol butyl ether can serve as an intermediate in the synthesis of other chemical compounds, although this is a less common application compared to its solvent uses.
| Molecular weight | 132.20 |
|---|---|
| Linear formula | CH3(CH2)3OC3H6OH |
| Assay | ≥99% |
| Boiling point | 165-175 °C(lit.) |
| Density | 0.885 g/mL at 25 °C |
| Refractive index | n20/D 1.416(lit.) |
| Composition | (mixture of isomers) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 59 °C / 138.2 °F |
| Transport (UN / ADR) | UN 3271 3 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/38 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Propylene Glycol Butyl Ether used for?
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Propylene glycol butyl ether is primarily used as a coalescing agent in waterborne coatings, a solvent in cleaning products, and in ink formulations. It is also known as Dowanol PnB.
What is the CAS number and formula for Propylene Glycol Butyl Ether?
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The CAS number is 5131-66-8 and the linear formula is CH3(CH2)3OC3H6OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Propylene Glycol Butyl Ether with an assay of ≥99%. We do not represent this product as USP, BP, or EP grade.
How should Propylene Glycol Butyl Ether be handled safely?
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Propylene Glycol Butyl Ether is a Warning substance that causes skin irritation (H315) and serious eye irritation (H319). Handle with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation.
How is Propylene Glycol Butyl Ether packed and exported?
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Tech Serve Solutions exports Propylene Glycol Butyl Ether in various suitable packaging options, adhering to international shipping regulations. Please contact us for specific requirements.
How can I request a sample or quote for Propylene Glycol Butyl Ether?
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To request a sample or a quote for Propylene Glycol Butyl Ether, please use the contact form on our website or call our sales department directly.
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