This illustrates why Jehovah's Witnesses make poor janitors. True, they can clean without scriptural conflicts. However, many of the chemicals are potentially hazardous. And, if you don't know how to counteract them, they can be extremely dangerous.
Just because hydrofluoric acid is a weak acid doesn't make it any less dangerous. If anything, it makes it even more dangerous because baking soda will not adequately render it harmless as it would hydrochloric acid. HF is one of the few chemicals that can react with glass. And it's true that fluorine is the only element that is a more powerful oxidant than oxygen--even chlorine is not as powerful (chlorine is the third most powerful oxidant; fluorine is the most powerful). For sure, not something you want to be fooling around with. Just tell that to a Jehovah's Witless with no college education and who was too tired to pass the chemistry test in high school because the Theocraptic Misery "School(??)" was the night before.
Folks, if you are going to work with chemicals, you need to know what they can do and how to neutralize them. Mixing bleach with any Lewis acid, including ammonia, will release dangerous chlorine fumes. There are chemicals that, mixed together, can be deadly. And, some require full face and skin protection. If you work with strong acids in high concentrations, make sure you know how to neutralize them if there is a spill. And, hydrofluoric acid is nothing for someone with little or no chemistry background to fool around with. If you do get any of this on your skin, you had better call the emergency room while flushing with as much water as possible since its damage can go on long after the initial spill. This holds true with any acid, but hydrofluoric acid is probably the most dangerous even if it's only a weak acid. KNOW YOUR CHEMICALS BEFORE USING THEM!
