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2,4,7,9-Tetramethyl-5-decyne-4,7-diol >98.0%

As a typical Gemini surfactant, Surfadol 541 provides multifunctional properties such as dynamic surface tension reduction, foam control, water sensitivity reduction, and viscosity stabilization. Available in solid, liquid or powder form, Surfadol 541 is widely used as wetting agent or anti-foaming agent in waterborne coatings such as electro-deposit coatings, industrial coatings, etc., as well as water-based inks such as gravure inks, flexo inks and inkjet inks. The unique product can prevent surface defect problems such as fisheyes, crawling, and cratering on low-energy substrates, compared to fluorosurfactant or silicone surfactants.


CAS Number: 126-86-3

EINECS Number: 204-809-1

Chemical Name:


Synonyms: TMDD; Surfynol 104; S-104;


5-Decyne-4,7-diol, 2,4,7,9-tetramethyl-;

Tetramethyl decyne diol.

(source from ECHA website)

Appearance: white waxy solid

APHA Color (Pt-Co): ~150

Active Content: 100%

Molecular Formula: C14H26O2

Molecular Weight: 226.36

Melting Point: 52-56 ºC

Boiling Point: >262 ºC

Density: 0.89 g/cm3

HLB: 4

Dynamic Surface Tension: 36 dynes/cm

 (0. 1% w.t. , 6 b/s)

Usage: 0.2%-2.0% w.t.

Shelf Life: 48 months

Production Capacity: 1,400MT/year

2,4,7,9-Tetramethyl-5-decyne-4,7-diol ethoxylate 100%

Adding ethylene oxide (EO) to Surfadol 541 surfactant increases the hydrophilic nature of the product, modifying its water solubility, wetting and defoaming characteristics. Depending on the ethylene oxide level, Surfadol 400 series surfactants function as low-foaming, nonfoaming or defoaming wetting agents in a variety of applications as below.


Waterborne Industrial Coatings

Waterborne Internal Can Coatings

Printing Inks

Pressure-Sensitive Adhesives

Paper Coatings

Metalworking Lubricants

Agricultural Chemicals


CAS Number: 9014-85-1

EINECS Number: 500-022-5

Chemical Name:

2,4,7,9-Tetramethyl-5-decyne-4,7-diol ethoxylate


Polyoxyethylene 2,4,7,9-tetramethyl-5-decyne-4,7-diol

2,4,7,9-Tetramethyl-5-decyne-4,7-diol, ethoxylated

Ethoxylated 2,4,7,9-tetramethyl-5-decyn-4,7-diol


(source from ECHA website)

Appearance: light yellow liquid

APHA Color (Pt-Co): ~250

Active Content: 100%

Molecular Formula: (C2H4O)n.C14H26O2.(C2H4O)n

Boiling Point: >121 ºC

Density: 0.95 g/cm3

pH (1% aqueous solution): 6-8

Viscosity @ 20°C, cps: <250

HLB (Hydrophile-Lipophile Balance): 4

Dynamic Surface Tension: 32 dynes/cm

 (0. 1% w.t. , 6 b/s)

Usage: 0.2%-2.0% w.t.

Shelf Life: 48 months


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