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DISPONIL A 1580

Fatty alcohol ethoxylate, modified

Mixture of ethoxylated linear fatty alcohols. 
Used as surfactant.

80% aqueous solution of mixed non-ionic surfactants. 
Developed especially for application in emulsion polymerization.

Solubility of Disponil A 1580:
As most linear fatty alcohol ethoxylates, the Disponil A types exhibit a phase behaviour when diluted with water. 
The following diagram shows the pourpoint of dilutions with different active matter concentrations. 

When diluting the products it should be ensured to stay at temperatures well above the pourpoint in order to avoid gel phases. 
In addition it is recommended to add the products to the water phase.

Viscosity of Disponil A 1580: 
The relationship of the viscosity as a function of temperature is always an important point to consider, as far as storage, shipping and dosage is concerned. 

Dynamics of Disponil A 1580: 
Dynamic surface tension is an indicative measure of the speed with which a surfactant can orientate at new interfaces. 
This is particularly important, for example, during the dosing processes. 

Storage of Disponil A 1580: 
Disponil A 1580 is recommended to store the Disponil A types at temperatures above their pourpoints and at a maximum of 50 °C.

If the products are exposed to temperatures below their pourpoint they may form gels or become crystalline. 
The products are not damaged by low temperatures, but they will become unpumpable and heterogeneous.

The homogeneous state is to be recovered by gentle heating and stirring at maximum 50 °C.

Materials of Disponil A 1580: 
The following materials may be used for the storage of the Disponil A types:
V4A-steel (1.4571)
HDPE

Shelf life of Disponil A 1580: 
The Disponil A types have a shelf life of at least 24 months, provided they are stored properly and drums are kept tightly sealed.

The pH value might drop throughout the storage time, which is a common phenomena of ethoxylated fatty alcohols. 
This usually does not have a negative effect on the product quality. 
If required the pH value may be increased by adding sodium hydroxyde solution.

Safety of Disponil A 1580: 
We know of no ill effects that could have resulted from using the Disponil A types for the purpose for which they are intended and from processing them in accordance with current practice.

According to the experience we have gained over many years and other information at our disposal, the Disponil A types do not exert any harmful effects on health, provided that they are used properly, due attention is given to the precautions necessary for handling chemicals, and the information and advice given in our
safety data sheets are observed.

Applications of Disponil A 1580:
Wetting agents
Co-surfactants

Benefits of Disponil A 1580:
Disponil A types are modified ethoxylates of native fatty alcohols with improved process behavior in comparison to the standard fatty alcohol ethoxylates. 
They are readily biodegradable.

Functions of Disponil A 1580:
Emulsifying
Emulsifier
Emulsifier Oil / Water
Oil / Water Resins
Surface Modification
Surface Modification Wetting Agent
Surface Modification Wetting Dynamics Slow
Foam Behavior Low

Typical properties of Disponil A 1580:

Product Type:
Polymers
Surfactants
Surfactant Type Nonionic
Surfactants Alcohol Source Natural
Surfactants EO number 9-15
Surfactants HLB Value (Griffin) 14.5-16

Chemistry:
Alcohol alkoxylate

Disponil A types:
Disponil A 1080
Disponil A 1580
Disponil A 3065
Disponil A 4065
Nonionic emulsifiers for the chemical industry and emulsion polymerization

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