Dihydroxyacetone /ËdaÉªhaÉªËdrÉksiËaesÉ¨toÊn/ , ËdaÉªhaÉªËdrÉksiËÃ¦sÉ¨toÊn OR, dha also known as, glycerone is a simple (carbohydrate a) triose with Formula C 3H 6o. 3HA is a hygroscopic white crystalline powder. It has a sweet cooling taste and a characteristic odor. It is the simplest of all ketoses and has no chiral center or optical activity. The normal form is a dimer which is slowly soluble in one part water and 15 parts ethanol.
The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the Moon's radius. It is composed of an ironânickel alloy and some light elements. The temperature at the inner core boundary is approximately 5700 K (5400 Â°C).
The outer core is so hot that the metal is always molten. The outer core is about 1,370 miles (2,200 km) thick. Because the earth rotates, the outer core spins around the inner core and that causes the earth's magnetism. The outer core is at 1,800 - 3,200 miles (2,890-5,150 km) below the earth's surface.he outer core is so hot that the metal is always molten. The outer core is about 1,370 miles (2,200 km) thick. Because the earth rotates, the outer core spins around the inner core and that causes the earth's magnetism. The outer core is at 1,800 - 3,200 miles (2,890-5,150 km) below the earth's surface.