DIY heater

Tutorial de avatarLow-tech with Refugees - Low-tech & Réfugiés | Catégories : Outils

Hand heater

Difficulté
Facile
Durée
1,5 heure(s)
Coût
1 EUR (€)
Autres langues :
English • ‎español • ‎français • ‎العربية
Licence : Attribution (CC BY)

Matériaux

- 500 ml White vinegar

- 35 Baking soda

-500 ml Boiling water

Outils

-Coffee filter

-Spoon

-Saucepan

-Sachet

-Funnel

-Trombone

Étape 1 -

Put 500mL of vinegar in a container and gently add the bicarbonate of soda (you will see a gas being released as it foams, this is carbon dioxide).



Étape 2 -

Pour this solution into the 500mL of boiling water in the pan and allow the solution to evaporate: you will notice crystals forming at the bottom of the pan.




Étape 3 -

Remove the crystals from the bottom of the saucepan and crush them so that they fit into the container (in this case, the Pompotes flask).




Étape 4 -

Bring the water to the boil and melt the mixture in the flask at a low temperature until the mixture is liquid.




Étape 5 -

Leave the sachet to stand in the open air, avoiding any shocks.




Étape 6 -

Add the paperclip and then stir the sachet to crystallize the sodium acetate which, being exothermic, will provide us with heat!




Étape 7 -

Afin de la réutiliser, répéter l'etape 4 et 5.

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