Some of the more common color-producing compounds are tabulated here. The color of a compound in a firework will be the same as its color in a flame test (shown at right). Not all compounds that produce a colored flame are appropriate for coloring fireworks, however.
Gouache [p] (/É¡uËËaeÊ/ ; [É¡uËËÃ¦Ê]), ËÉ¡waÊ also spelled, guache is a type of paint in the category watermedia consisting of, pigment a binding (agent usually gum), arabic and sometimes added inert, material designed to be used in an opaque. Method it also refers to paintings that use this opaque. method relatively new variation is acrylic gouache. It is similar to traditional gouache with highly concentrated pigment but, unlike traditional gouache that is tempered with gum arabic, it is mixed with an acrylic-based binder.
As such, it is difficult to translate it literally. A literal douche is a medical device used typically for vaginal cleaning, as during or after a woman's period. As such, the insult is similar to calling someone a sh*t bag, or anything else that might be considered unpleasant, unclean, smelly, gross, or disgusting. The English word has the same Latin roots as the Spanish word for shower, ducha and they are close cognates. The Spanish word for the medical device is also ducha.