Environmental Health and Safety

MSDS Glossary

A substance that produces hydroxide ions (OH-) in aqueous solution. The pH values of bases are between 8 and 14. Strong bases have a higher pH and are more corrosive than weak bases. Examples of strong bases include sodium hydroxide, and ammonium hydroxide. See also pH, Acid, Corrosive.
Capable of being broken down into non harmful products by the action of living things.
Boiling Points — BP
The temperature at which a liquid changes to a vapor state at a given pressure. The boiling point is usually expressed in degrees Fahrenheit at sea level pressure (760 mmHg, or one atmosphere). Some examples of boiling points:
Propane -42°C (-44°F)
Butane -0.5°C (31°F)
Gasoline 38°C (100°F)
Water 100°C (212°F)
Ethylene Glycol (Antifreeze) 197°C (387°F)
The interconnecting of two objects by means of a clamp and bare wire. Its purpose is to equalize the electrical potential between the objects to prevent a static discharge when transferring a flammable liquid from one container to another. The conductive path is provided by clamps that make contact with the charged object and a low resistance flexible cable which allows the charge to equalize.

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