Median income is the amount which divides the income distribution into two equal groups, half having income above that amount, and half having income below that amount. Mean income (average) is the amount obtained by dividing the total aggregate income of a group by the number of units in that group.
Top 10 facts about the world. Calcium stearate is a non-toxic, white powdery substance. It is a calcium salt derived from stearic acid and is widely used in cosmetics, plastics, and pharmaceuticals.This salt is used as a plasticizer, stabilizer, and surfactant.alcium stearate is used in many cosmetics. Most calcium stearate used in the U.S. is derived from plant material, like palm oil, and not animal sources. Calcium stearate has several uses in industrial baking.
Found in many genera of plants, calcium oxalate is a water-insoluble salt that forms bundles of needlelike crystals called raphides. Contact with moisture causes plant cells to eject the raphides, which can then come into contact with skin or mucosal surfaces. Irritancy is mechanical in part and due to the anatomically sharp structure of the crystals themselves. The crystals are believed to be more irritant when longer than 180 Âµm.