Apple's iPhone charger crams a lot of technology into a small space. Apple went to extra effort to provide higher quality and safety than other name-brand chargers, but this quality comes at a high cost.. In fact, Apple seems to squeeze an awful lot of technology into a very, very small space.
Timber preservtive and in the preparawtion of other wood preservatives, e.g oil-based copper naphthenates and water-based copper/chrome/arsenic for the prevention of woodworms and wood rots. Ingredient of plaster to prevent fungus infection, e.g to prevent the spread of dry rot.aw material for the manufacture of copper naphthenate and other copper compounds for use in anti-fouling paints. Preparation of certain varnish or paint dryers, e.g copper oleate, copper stearate. Preparation of certain pigments, e.g copper chromate, copper ferrocyanide, copper phthalocyanine.
Copper is an excellenet conductor of heat. A good quality copper pan conducts the heat to the food quickly and evenly. This is copper's greatest advantage over other types of cookware. Many chefs use copper to cook foods that need to be cooked at precisely controlled temperatures. Despite these advantages, there are also some disadvantages to copper. Copper is a reactive metal, meaning that it readily oxidizes when it comes in contact with acids. If unlined copper pans are used in cooking acidic foods, such as tomatoes, then severe illness can result. This is why many copper pots and pans are lined with a non-reactive surface, such as stainless steel. This prevents the copper from dissolving into the food, and causing illness.