Fuel paste
Fuel paste (or gel ) consists of denatured alcohol ( ethanol ), which becomes a gelatinous to viscous mass when a gel former is added. In commercial fuel pastes, pyrogenic silicon dioxide or cellulose derivatives such as hydroxypropyl cellulose are usually added as a gelling agent. A similar effect can be achieved by adding calcium acetate . The advantage of fuel pastes based on cellulose derivatives is that they burn without leaving any residue.
The paste is used for the operation of rechauds or for emergency cookers in the outdoor and military sector, such as in the Swiss Army , and is usually available in the form of small doses (approx. 80-200 ml) from which it can be burned directly. They are also sold in tubes or bottles.
The advantage over using pure spirit is that the paste does not run or evaporate even if the burner is overturned. Because of the lower risk of fire, it is therefore also referred to as safety paste / safety fuel paste. Even if the term security suggests a safe use, it is still an open flame in the sense of the fire protection ordinance.
In contrast to pure fuel burners, burners for fuel paste do not contain a sponge, as this is not necessary due to the viscosity and would stick.
Individual evidence
- ↑ Safety data sheet for a fuel paste, dated November 26, 2014, accessed on March 20, 2019
- ↑ Safety data sheet for a burning gel, dated April 2, 2012, accessed on March 20, 2019
- ^ Wilhelm Schuster: Fuel liquid patent EP0203427B1
- ↑ Fuel paste (production and use of fuel paste in experiments), cumschmidt.de