Assertion: phosphoric acid | /r/HasProperty | excellent soldering flux
Facets:
Source sentences:
text: Although phosphoric acid is an excellent soldering flux for copper and copper-plated stainless steel, it has not been generally accepted by the plumbing trade because of its low viscosity.
text: Although phosphoric acid is an excellent soldering flux for copper and copper-plated stainless steel, it has not been generally accepted by the plumbing trade because of its low viscosity.