MARLIPAL O 13/70

1 of 59 products in this brand
MARLIPAL O13/70 is based on a primary, multibranched C13 alcohol with approx. 7 moles ethylene oxide. It is used in personal care as water-soluble emulsifier, applicable for all kinds of liquid personal cleansing products. For documents specific to a region, please contact Sasol using the 'Request Document' button.

INCI Name: Trideceth-7

Chemical Name: Isotridecanol, Ethoxylated

CAS Number: 69011-36-5

Functions: Chemical Intermediate, Emulsifier, Surfactant, Surfactant (Nonionic), Wetting Agent

Chemical Family: Alcohol Ethoxylates

Ingredient Origin: Petrochemical, Synthetic

Synonyms: Poly(oxy-1,2-ethanediyl), α-tridecyl-ω-hydroxy-, branched

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
INCI Name
Ingredient Origin
Fluids & Lubricants Functions
Industrial Additives Functions
CAS No.
69011-36-5
EC No.
500-241-6

Features & Benefits

CASE Ingredients Features

Applications & Uses

Compatible Substrates & Surfaces
Fluids & Lubricants Type
Fluids & Lubricants End Use
Industrial Additives End Use

Properties

Physical Form
Appearance
Clear to turbid liquid
Miscible In
Water
Typical Properties
ValueUnitsTest Method / Conditions
Cloud Point (10 % in 25% butyl diglycol solution)72-75°CDIN EN 1890
pH (2 % in fully demin. water)5-7-DIN EN 1262
Density at 50°Capprox. 0.96g/mlDIN 51757
Viscosity at 50°C (Brookfield)approx. 25mPa.sDIN ISO 2555
Water Contentmax. 0.5%
Flash Pointmin. 150°C
Iodine Color Numbermax. 2mg I/100 mlDIN EN 1557
Polyethylene Glycol Contentmax. 2.0% massHPLC
Ignition Temperatureapprox. 355°CDIN 51794
Refractive Indexapprox. 1.449-DGF C - IV 5
Setting Pointapprox. + 7°CDIN ISO 3841
Solubility and Gel Formation With Water

Since the polyethylene glycol ether chain is the watersoluble constituent of MARLIPAL O13 surfactants, the solubility in water increases with increasing degree of ethoxylation. The lower ethoxylates (3-6 mol EO), in which the alkyl group predominates as the hydrophobic component, are accordingly only sparingly soluble in water. They do, however, dissolve in nonpolar organic solvents and are used for example as w/o-emulsifiers. In contrast, the higher ethoxylates are readily soluble in water.

Alkylpolyethylene glycol ethers, the MARLIPAL O13 ethoxylates form free-flowing or solid gels when water is added in certain concentration ranges. During the preparation of cleaning formulations, this tendency to gel can have an adverse effect on processing. To prevent lumping and gelling, it is thus advisable to add the nonionic surfactant to the water, use warm water and stir well. 

Marlipal 0% water 10% water 20% water 30% water 40% water 50% water 60% water 70 % water 80% water 90% water
O 13/30 Cloudy Liquid Clear Liquid Clear Liquid Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous
O 13/40 Cloudy Liquid Clear Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Cloudy, non-homogenous Cloudy, non-homogenous
O 13/50 Cloudy Liquid Clear Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Cloudy, non-homogenous
O 13/60 Cloudy Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Cloudy, non-homogenous
O 13/70 Cloudy Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous Cloudy, non-homogenous
O 13/80 Cloudy Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Clear Liquid Clear Liquid Clear Liquid Clear Liquid
O 13/90 Cloudy Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Gel or Paste Clear Liquid Clear Liquid Clear Liquid
O 13/100 Solid Clear Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Gel or Paste Clear Liquid Clear Liquid Clear Liquid
O 13/120 Solid Clear Liquid Clear Liquid Clear Liquid Gel or Paste Gel or Paste Gel or Paste Clear Liquid Clear Liquid Clear Liquid

This shows the physical states of aqueous mixtures of MARLIPAL O13 grades. At very high surfactant concentrations (10 % water) and at relatively low concentrations below approximately 30 % surfactant (70 % water), the mixtures of the higher ethoxylates are homogeneous and clear. In the medium concentration range, on the other hand, the MARLIPAL O13 products form pastes or gels which may be clear or cloudy.

Regulatory & Compliance

Technical Details & Test Data

Free Alcohol Content

Purity

The MARLIPAL O13 products have a high active content of alkylpolyglycol ethers. Depending on the degree of ethoxylation, the products also contain varying amounts of the starting material isotridecanol. The free alcohol, the proportion of which decreases with increasing degree of ethoxylation supports the cleaning action of the ethoxylates and contributes to foam regulation.

During the ethoxylation, secondary reactions yield polyethylene glycols having the structure H(OCH2CH2) nOH. The proportion of polyethylene glycols having varying chain lengths is below 2 %. Polyethylene glycols are water-soluble products which do not impair the properties of the nonionic surfactants.

To neutralize the alkaline catalyst required for the ethoxylation reaction, MARLIPAL O13 grades are treated with shortchain organic acids (usually acetic acid or lactic acid) and adjusted to a pH of 5–7 (2 % in water). Accordingly, they contain a small amount of organic salt and small amounts (less than 0.5 %) of water. The water content, however, may increase on exposure to air since ethoxylates are hygroscopic.

Sasol MARLIPAL O 13/70 Free Alcohol Content

Viscosity vs Temperature

Viscosities

At room temperature, the ethoxylates of the MARLIPAL O13 series with a short EO chain are low-viscous liquids. The viscosity increases with increasing degree of ethoxylation within the product series. Viscosities at 20 °C and 50 °C are listed, shows the viscosities of MARLIPAL O13 ethoxylates as a function of temperature.

Sasol MARLIPAL O 13/70 Viscosity vs Temperature

Wetting Efficiency

Wetting Efficiency on Textiles: 

Wetting efficiency on cotton as a function of degree of ethoxylation (1 g/l in demin. water, 20 °C)

In detergents, the surfactants are the active force which removes grease, soiling and pigment particles from the fibers. The wetting efficiency on textiles is therefore an important criterion for assessing the performance of a surfactant. The products of the MARLIPAL O13 series have high wetting efficiency on textiles, the best values being observed for MARLIPAL O13/60 to MARLIPAL O13/100. The wetting effect, which, in accordance with DIN EN 1772, corresponds to the time taken for a cotton disk to sink, is shown in Figure 3 as a function of the degree of ethoxylation. The shorter the sinking time, the better the wetting efficiency.In detergents, the surfactants are the active force which removes grease, soiling and pigment particles from the fibers. The wetting efficiency on textiles is therefore an important criterion for assessing the performance of a surfactant. The products of the MARLIPAL O13 series have high wetting efficiency on textiles, the best values being observed for MARLIPAL O13/60 to MARLIPAL O13/100. The wetting effect, which, in accordance with DIN EN 1772, corresponds to the time taken for a cotton disk to sink, is shown in Figure 3 as a function of the degree of ethoxylation. The shorter the sinking time, the better the wetting efficiency.

Sasol MARLIPAL O 13/70 Wetting Efficiency - 1

Wetting efficiency on hard surfaces: 

Wetting efficiency on hard surfaces as a function of degree of ethoxylation (1 g/l in demin. water, 25 °C)

The wetting behavior of surfactant solutions on hard surfaces, such as glass, ceramics, steel and plastics, can be assessed by wetting angle investigations. Good wetting on hard surfaces can be recognized from how much the shape of the droplet of a surfactant-containing aqueous droplet, traced onto the surface of the material, deviates from the shape of a droplet of pure water. The parameter measured is the wetting angle of the droplet. A high reduction of the wetting angle corresponds to good wetting properties on a given substrate . Polypropylene and steel are wetted very well, the optimum range being from 6-8 mol of ethylene oxide per mol alcohol.

Sasol MARLIPAL O 13/70 Wetting Efficiency - 2

 

Foaming Profile

Foaming profile in accordance with DIN EN 12728 (1 g/l in demin. water, 20 °C)

Like all nonionic surfactants, the MARLIPAL O13 ethoxylates produce less foam than anionic products. The foaming profile of the MARLIPAL O13 surfactants is shown in graph and has been determined by the Schlag foam method (DIN EN 12728). The MARLIPAL O13 products containing 8-12 mol of EO/mol produce foam volumes of 100-250 ml in the test, whereas the short chain product grades with lower solubility in water produce significantly less foam. The foaming profile is well within the typical range of alcohol ethoxylates. In comparison, an anionic surfactant such as linear alkylbenzene sulphonate (LAS) produces a foam volume of ca. 600 ml.

Sasol MARLIPAL O 13/70 Foaming Profile

 

Detergency on Textiles

The MARLIPAL O13 surfactants have excellent detergency performance both on synthetic and on natural fabrics. The performance on polyester, cotton/polyester blend and cotton was investigated. There are optima in the detergency in the range from 6-10 mol EO, which shift to higher degrees of ethoxylation at a higher washing temperature.

Detergency on polyester at 30 °C

Sasol MARLIPAL O 13/70 Detergency on Textiles - 1

 

Detergency on cotton/polyester blend at 60 °C

Sasol MARLIPAL O 13/70 Detergency on Textiles - 2

Detergency on cotton at 60 °C

Sasol MARLIPAL O 13/70 Detergency on Textiles - 3

Detergency on cotton at 90 °C

Sasol MARLIPAL O 13/70 Detergency on Textiles - 4

 

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia Pacific
  • Europe
  • Latin America

Storage & Handling

Storage and Handling

Precautions for safe handling

Advice on safe handling

  • Wear personal protective equipment.
  • Avoid contact with skin and eyes.
  • The effects of extreme temperatures (cold, heat) may cause the product to become turbid, viscous, congeal or separate. In such cases mixing at normal temperatures (i.e. room temperature) will restore the product for use.

Advice on protection against fire and explosion

  • Normal measures for preventive fire protection.
  • Do not spray on a naked flame or any incandescent material.

Fire-fighting class

  • B: Fires involving liquids or liquid containing substances. Also includes substances which become liquid at elevated temperatures.

Conditions for safe storage, including any incompatibilities

Requirements for storage areas and containers

  • Keep tightly closed in a dry and cool place.

Storage class (TRGS 510)

  • 10-13: German Storage Class 10 to 13

Other data

  • Stable at normal ambient temperature and pressure.
  • Transporation Road tankers, about 950 kg containers, about 190 kg iron drums
  • Storage: Stainless steel vessels (Steel no: 1.4541 or 1.4571)