BIODAC 410 is a fatty alcohol polyethyleneglycol ether, based on iso-decanol and ethylene oxide (about 4,5 moles). For documents specific to a region, please contact Sasol using the 'Request Document' button.

Functions: Emulsifier, Surfactant, Surfactant (Nonionic)

Chemical Family: Alcohol Ethoxylates, Ethers, Non-Ionics

Physical Form: Liquid

End Uses: Leather, Textiles

Technical Data Sheet
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Identification & Functionality

Industrial Additives Functions
CAS No.
78330-20-8
EC No.
616-607-4

Features & Benefits

CASE Ingredients Features

Applications & Uses

Markets
Industrial Additives End Use
Recommended Uses & Known Applications

BIODAC 410 due to its low number of EO (low HLB value) is mainly used as a co-emulsifier agent for W/O or O/W emulsions in combination with anionic or non-ionic surfactants with high HLB value. BIODAC 410 is a low foaming surfactant with good wetting properties.

Properties

Physical Form
Appearance
Cloudy liquid
Typical Properties
ValueUnitsTest Method / Conditions
Cloud Point (10% in BDG at 25°C)67.0-68.0°CRCM 3646
Polyethylene Glycols Contentmax. 3% massMPL 2002.0
pH (5%)5.0-7.0-MPL 1007.0
Free Water (Karl Fischer)max. 0.5% massRCM 3804
Viscosity at 50°C13cStASTM D445, ASTM D7042
Density at 50°C950kg/m3ASTM D7042, ASTM D4052
Colormax. 50APHARCM 3607
Flash Pointmin. 125°CASTM D 93
Molecular Weight362-374g/molCalculated
Hydroxyl Number150-155mg KOH/gRCM 3851
HLB11.4-Calculated
Ethylene Oxide Content57%w/wCalculated
Solubility and Gel Formation With Water

Solubility in water

As for all alcohol ethoxylates the solubility of this product group mainly depends on the base alcohol and the length of the water soluble polyethylene glycol ether chain. Accordingly, the solubility increases with the degree of ethoxylation. Ethoxylates based on short chain alcohols with 3 to 5 moles of EO are only sparingly soluble in water whereas higher ethoxylated types are readily soluble in water and show excellent wetting properties.

Gel formation in water

Aqueous solutions of short chain alcohol ethoxylates cover a large range of viscosities from free flowing liquids to solid gels in dependence of the amount of water added. The gel phases typically occur at medium concentrations and can have significant stability even when additional water is added.

Overview of the gel formation of the different alcohol ethoxylates.

Product Name 0% water 10% water 20% water 30% water 40% water 50% water 60% water 70% water 80% water 90% water
BIODAC 310 Cloudy Liquid Transparent Liquid Transparent Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid
BIODAC 410 Cloudy Liquid Transparent Liquid Transparent Liquid Gel or paste Gel or paste Gel or paste Cloudy Liquid Cloudy Liquid Cloudy Liquid Cloudy Liquid
BIODAC 510 Cloudy Liquid Transparent Liquid Transparent Liquid Cloudy Liquid Cloudy Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid
BIODAC 610 Cloudy Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid
BIODAC 710 Cloudy Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid
BIODAC 810 Cloudy Liquid Transparent Liquid Transparent Liquid Transparent Liquid Gel or paste Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid Transparent Liquid

 

Surface Active Property

One of the most characteristic properties of surface active agents is their ability to reduce the surface tension of water. Ethoxylates based on short chain alcohols provide a typical surface tension reduction. Upon addition of ethoxylates, the water surface tension of 72 mN/m can be reduced to values below 30 mN/m

The Critical Micelle Concentration (CMC) is a further characteristic property of a surfactant. The CMC is the concentration at which single surfactant molecules start to build micellar aggregates. CMC values as well as surface tension data at 0.1 g/l resp. 1.0 g/l for the ethoxylates based on short chain alcohols are recorded

Product Name Surface tension in mN/m, at 25°C in D.I. water Surfactant concentration Critical micelle concentration (CMC) [g/l]
0.1 g/l 1.0 g/l
BIODAC 310 39 26 0.38
BIODAC 410 41 26 0.54
BIODAC 510 42 26 0.70
BIODAC 610 44 27 0.85
BIODAC 710 48 27 0.95
BIODAC 810 48 29 1.26

 

Technical Details & Test Data

Wetting Efficiency

Wetting efficiency on textiles

Wetting efficiency on textiles, Cotton disk method (DIN EN 1772), 1 g/l in D.I. water, 20 °C

The wetting efficiency on textiles is an important criterion for assessing the performance of a surfactant. The wetting times of the alcohol ethoxylates were determined in aqueous solutions on cotton fabrics. The wetting performance, which corresponds to the time taken for a cotton disk to sink in aqueous solution, is a function of the degree of ethoxylation. The shorter the sinking time, the better the wetting efficiency

Sasol BIODAC 410 Wetting Efficiency

Wetting efficiency on hard surfaces

The wetting performance on hard surfaces such as metal or plastics can be assessed by contact angle measurements. The contact angle indicates how far a droplet of a surfactant solution spreads on the given surface. The lower the contact angle the better the wetting efficiency on the surface. Hydrophobic surfaces like plastics are usually more difficult to wet with water than hydrophilic surfaces. Ethoxylates based on short chain alcohols show an excellent reduction of the surface angles on hard surfaces compared to pure water.

 

Foaming Profile

Ethoxylates based on short chain alcohols are moderate to high foaming surfactants. Figure 4 shows the foaming profile of MARLIPAL 10, BIODAC x10 and LIALET 111 ethoxylates. At room temperature the foam level of the ethoxylates increases with increasing degree of ethoxylation. The foaming behavior is determined by the SITA foam method (foam generated by a rotating disk).

Foaming profile SITA foam method, 1 g/l in D.I. water, 20°C

Sasol BIODAC 410 Foaming Profile - 1

Foaming profile SITA foam method, 1 g/l in D.I. water, 20°C

Sasol BIODAC 410 Foaming Profile - 2

 

Packaging & Availability

Packaging Type
Packaging Information

BIODAC 410 is generally supplied in drums.

Storage & Handling

Shelf Life
36 months
Storage and Handling
  • BIODAC 410 should preferably be stored in stainless steel tanks.
  • It is suggested to keep the product at temperature below 40°C, it is preferable to avoid heating above 60°C and to store under nitrogen in order to minimize yellowish phenomena.
  • BIODAC 410 is a cloudy liquid at room temperature, improvement of appearance and handling at low temperature can be achieved by mixing the product with 15 weight% water to obtain a clear liquid up to a temperature -10°C.