<P> Embalming chemicals are a variety of preservatives, sanitizers, disinfectant agents, and additives used in modern embalming to temporarily delay decomposition and restore a natural appearance for viewing a body after death . A mixture of these chemicals is known as embalming fluid, and is used to preserve deceased individuals, sometimes only until the funeral, other times indefinitely . </P> <P> Typical embalming fluid contains a mixture of formaldehyde, glutaraldehyde, methanol, humectants and wetting agents, and other solvents that can be used . The formaldehyde content generally ranges from 5 to 35 percent, and the ethanol content may range from 9 to 56 percent . </P> <P> Environmentalists generally disapprove of embalming because of the harmful chemicals involved and their interactions with the environment . Recently, more eco-friendly embalming methods have become available . </P> <P> Badly decomposing bodies, trauma cases, frozen, or drowned bodies, and those to be transported over long distances also require special treatment beyond that for the "normal" case . The restoration of bodies and features damaged by accident or disease is commonly called restorative art or demi - surgery, and all qualified embalmers have some degree of training and practice in it . For such cases, the benefit of embalming is startlingly apparent . In contrast though, many people have unreasonable expectations of what a dead body should look like, due to the unrealistic portrayal of "dead" bodies (usually by live actors) in movies and television shows . Viewers generally have an unrealistic expectation that a body undergoing decomposition should look as it did before death . Ironically, the work of a skilled embalmer often results in the deceased appearing natural enough that the embalmer appears to have done nothing at all . Normally a better result can be achieved when a photograph and the decedent's regular make - up (if worn) are available to help make the deceased appear more as they did when alive . </P>

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