Dipropylene Glycol n-Butyl Ether, commonly abbreviated DPNB, CAS 29911-28-2, is a high-boiling glycol-ether solvent supplied for coatings, inks and industrial cleaners. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.
Dipropylene Glycol n-Butyl Ether (DPNB) CAS 29911-28-2
- CAS: 29911-28-2
- Synonyms: Dipropylene glycol n-butyl ether; DPNB; Dipropylene glycol butyl ether
- Einecs: Not specified
- Molecular Formula: C10H22O3
- Grade: Industrial solvent grade; quality controlled by purity, water, colour and distillation profile
- Package: Steel drums, HDPE drums or IBCs; packaging and dangerous-goods classification confirmed from the current SDS
Product Description
Dipropylene Glycol n-Butyl Ether (DPNB) CAS 29911-28-2 is dipropylene glycol butyl ether, with molecular formula C10H22O3.
Synonyms: Dipropylene glycol n-butyl ether; DPNB; dipropylene glycol butyl ether.
CAS: 29911-28-2.
Molecular formula: C10H22O3.
It is a slow-evaporating, hydrophobic glycol ether supplied as a clear liquid.
It is used as an industrial solvent, coupling agent and coalescent in coatings, inks, cleaners and adhesives.
It provides solvency, wetting and surface-tension reduction in waterborne and solvent-borne formulations.
It is butyl-terminated, so it is more hydrophobic, slower evaporating and less water-soluble than methyl-terminated DPM.
CAS 29911-28-2 identifies the major DPNB isomer; commercial mixed-isomer DPNB may also be described with CAS 35884-42-5.
Typical commercial DPNB has a boiling point around 230 C, density about 0.91 g/cm3 and flash point around 100 C.
Industrial grades are controlled by GC purity, water, colour and distillation profile.
For selection, compare evaporation rate, resin compatibility, water tolerance, colour and distillation profile.
For purchasing, define GC purity, water content, APHA colour, acidity, density and distillation range.
Keep containers closed and use the current SDS for ventilation, ignition-source control, storage and transport.
Use suitable PPE and exposure controls when handling the solvent.
Confirm GC purity, water, colour and physical consistency on the COA.
Confirm grade, packaging, and specification as required.
The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.
For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.
FAQ - Technical & Supply Chain
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Q:
What is Dipropylene Glycol n-Butyl Ether (DPNB) CAS 29911-28-2?
A: DPNB is a slow-evaporating, hydrophobic glycol ether with molecular formula C10H22O3 and molecular weight about 190.28 g/mol. It is used as an industrial solvent, coupling agent and coalescent in coatings, inks, cleaners, adhesives and other formulations. -
Q:
What are the main applications of DPNB?
A: DPNB is used as a coalescent in waterborne latex coatings and as an active solvent in solvent-borne coatings, printing inks, metal cleaners, hard-surface cleaners, grease and paint removers, adhesives, electronics, textiles, cosmetics and agricultural formulations. It provides solvency, wetting and surface-tension reduction. -
Q:
How does DPNB CAS 29911-28-2 compare with DPM CAS 34590-94-8?
A: DPNB is butyl-terminated, so it is more hydrophobic, slower evaporating and less water-soluble than the methyl-terminated DPM. DPM generally evaporates faster and tolerates more water, so the choice depends on resin compatibility, open time and final film balance. -
Q:
Does CAS 29911-28-2 identify one pure DPNB isomer?
A: CAS 29911-28-2 identifies the major dipropylene glycol n-butyl ether isomer, while commercial mixed-isomer DPNB may also be described with CAS 35884-42-5. For strict synthesis or regulatory work, specify the exact isomer or mixture and agree on the assay method. -
Q:
Which physical properties matter when selecting DPNB?
A: Typical commercial DPNB is a clear liquid with boiling point around 230 C, density about 0.91 g/cm3, flash point around 100 C, viscosity about 4.35 mPa.s at 25 C and aqueous solubility around 40-45 g/L at 25 C. Formulation screening should compare evaporation rate, resin compatibility, water tolerance, colour and distillation profile.
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