Introduction. n-Hexane (hereafter referred to simply as hexane) is a chemical made from crude oil. Pure hexane is a colorless liquid with a slightly disagreeable odor. It evaporates very easily into the air and dissolves only slightly in water. Hexane is highly flammable, and its vapors can be explosive.ntroduction. n-Hexane (hereafter referred to simply as hexane) is a chemical made from crude oil. Pure hexane is a colorless liquid with a slightly disagreeable odor. It evaporates very easily into the air and dissolves only slightly in water. Hexane is highly flammable, and its vapors can be explosive.
Founded in 1968, the Society for Adolescent Health and Medicine (SAHM) is a multidisciplinary organization committed to improving the physical and psychosocial health and well-being of all adolescents through advocacy, clinical care, health promotion, health service delivery, professional development and research.
What Is Accelerated Junctional Rhythm? In the heart, the SA node (sinus node) is the primary pacemaker of the heartbeat. Something happens and the node stops working correctly so the AV node takes over as a protective measure. The heart rate that comes from the AV node is often slower than the normal pace of the SA node.