When copper sulfate is applied at the PROPER rates and proportionsthe water is supposed to be safe immediately for swimming. However, it does have an unpleasant smell, so waiting for at least 12 hours is advisable.
Hmmm, copper sulphate may be illegal to use in your state. Check with your nearest professional swimming pool store.
Totally-it's not radioactive or anything. Old pennies are copper so is modern plumbing. if it wasn't safe, we'd all be in trouble.
Amount of copper and tins varies from application to application among bronze products. A typical bronze alloy made of copper(90%) and tin(10%).
NADA/ nothing/ Zilch as copper and lead are both non ferrous and I have installed many high end roofing jobs where lead coated copper flashings were installed to protect the coper from acidic rain or bird droppings.=Also prior to the safe water drinking act in the 1970's many unknowing handymen used a tin /lead solder for making joints in copper tubing=
Some foods are treated with sulfur dioxide as a preservative measure. It's not done as much as it once was, and for most people it doesn't appear to cause much of a problem... though a few people do seem to be allergic.
Alum is commonly used as an important part of many products created by the pharmaceutical, cosmetic and food industries because of its astringency property; it is also used in paper, glues and explosives. Alum is quite a safe chemical, however many cause irritation or if inhaled or digested. It also may cause itching, pain or irritation if come in contact with eyes and sometimes skin. When handling chemical it is best to wear a protective lab coat and goggles.
Copper is a metal that cannot replace zinc from zinc sulfate solution. This is because copper has a lower reactivity than zinc and cannot displace it in a chemical reaction.
yes it is safe
Copper (as a metal or alloys) is safe.
No
LSD is never safe.
No
Common Sense is the best guide. If you are handling small amounts of copper you should be safe. If you are employed to handle medium or large amounts of copper, lets says more than you wieght, then Work should have personal protective equipment that should worn
No!
Yes you can swim in it and they won't hurt you.
These may be treated as safe.
keep the pond and the creatures in it safe and healthy.
yes