Originally, exactly as much as a volume of water equal to the cube of the hundredth part of the metre, at the temperature of melting ice. I don't find that terribly helpful. Not many did. That's why, in 1889, the mass of the kilogram was redefined as being equal to the IPK.
Boiling water is also an effective poison ivy killer. If the area where you will be killing poison ivy has no other plants you wish to keep, pour boiling water over the poison ivy plant. Boiling water will kill any part of a plant that it comes in contact with, so be careful using this around desirable plants.
6. Himalayan Crystal Salt. Remember, poison ivy is a condition that causes the skin to become wet and red. Salt is an excellent natural remedy, as it is drying for the skin, and will pull both the excess water and the poison from the body. Make a paste using purified water and Himalayan Salt.You can also take a warm salt bath.emember, poison ivy is a condition that causes the skin to become wet and red. Salt is an excellent natural remedy, as it is drying for the skin, and will pull both the excess water and the poison from the body. Make a paste using purified water and Himalayan Salt. You can also take a warm salt bath.