Corn starch can be used to manufacture bioplastics. Corn starch is the preferred anti-stick agent on medical products made from natural latex, including condoms, diaphragms and medical gloves. Prior usage of talc was abandoned as talc was believed to be a carcinogen.
No. The natural color of kerosene is clear to a slight light yellow. 2 people found this useful.
Virtually all gem Citrine is not naturally colored, but rather colored from heat treatment of Amethyst. Heating Amethyst at about 750 degrees Fahrenheit will produce a mild yellow color, and heating to about 1700 degrees products deep orange to reddish colors.Most heat treated Citrine has a reddish tint.itrine is a very affordable gemstone, and all its color ranges are not expensive. It is most often confused with orange-yellow Topaz, which is very similar in color and body. Topaz is the more valuable gemstone, and dealers often sell Citrine labeled as Topaz.