Dipropylene glycol methyl ether (DPGME) is one of the most commonly used propylene glycol ethers in industry and is discussed in a recently published NEG/NIOSH document. DPGME is a collective term describing a mixture of structural isomers.
The Incas were a civilization in South America formed by ethnic Quechua people also known as Amerindians. In 1400AD they were a small highland tribe, one hundred years later in the early 16th century the Incas rose to conquer and control the largest empire ever seen in the Americas forming the great Inca Empire.
Inca Emperors. Inca Emperors : âAtahualpa âHuayna Capac âPachacuti â Huascarâ Manco Inca. Inca History : â Inca History â Inca Civilization â Machu Picchu History â War Between the two brothers. You will be surprised to know the Inca empire did not last more than two century. But their quick development was amazing and of course interesting.