Which type of preservative are you talking about? For extending the life of cut flowers, two popular brands are Chrysal and Floralife in the US. For drying flowers, the most common agent is silica crystals or silica gel. Both provide excellent drying properties.
There are two different types of capital markets. The first one is the primary market which is common for issuance of new securities. The other type is the secondary market which is known as the after market.
Convenience goods are the type of consumer products which are readily available in the market and customers don't much bother while purchasing them. A common example of convenience goods are FMCG. http://www.activetrader-links.com/