Not sure, some quick searches didn't really produce much.
For those who know a bit of chemistry:
est un produit liquide ou solide composé de molécules amphiphiles
obtenues par réaction chimique
entre un corps gras
et une base forte
, spécifiquement l'hydroxyde de sodium
pour le savon
ou l'hydroxyde de potassium pour le savon noir,
c'est donc le sel
d'un corps gras
Soap is a liquid or solid product composed of amphiphilic molecules obtained by chemical reaction between a fatty substance and a strong base, specifically sodium hydroxide for soap or potassium hydroxide for black soap.
I highlighted in red, it seems it's based on potassium hydrooxide:
is an inorganic compound
with the formula KOH
, and is commonly called caustic potash
Along with sodium hydroxide
(NaOH), this colorless solid is a prototypical strong base
. It has many industrial and niche applications, most of which exploit its corrosive nature and its reactivity toward acids
Here in France, it seems the uses for the black soap:
- clean conrete, ground etc
- around the kitchen, washing and shining
- clean glass, leather, oil stains on any surface
- interiour and exteriour car wash
- can be used to clean tools
Seems like a general purpose oil remover type soap, ok for metal applications, but I haven't found anywhere uses on rubber/effects on rubbers/plastics...
I guess we'll see....