Search results
Results from the WOW.Com Content Network
Paraformaldehyde can be depolymerized to formaldehyde gas by dry heating [2] and to formaldehyde solution by water in the presence of a base, an acid or heat. The high purity formaldehyde solutions obtained in this way are used as a fixative for microscopy and histology. The resulting formaldehyde gas from dry heating paraformaldehyde is flammable.
Paraformaldehyde, with the formula HO(CH 2 O) n H. It is a white solid that is insoluble in most solvents. Methanediol, with the formula CH 2 (OH) 2. This compound also exists in equilibrium with various oligomers (short polymers), depending on the concentration and temperature. A saturated water solution, of about 40% formaldehyde by volume or ...
Various early 20th Century embalming fluids. Embalming chemicals are a variety of preservatives, sanitising and disinfectant agents, and additives used in modern embalming to temporarily prevent decomposition and restore a natural appearance for viewing a body after death.
Division 4.1: Flammable Solid . Flammable solids are any of the following four types of materials: Desensitized Explosives: explosives that, when dry, are Explosives of Class 1 other than those of compatibility group A, which are wetted with sufficient water, alcohol, or plasticizer to suppress explosive properties; and are specifically authorized by name either in the 49CFR 172.101 Table or ...
Chemical Agents Warning Properties Latency Period Initial Symptoms Blister Agents Lewisite Gas: colorless Odor: geraniums Seconds to minutes
Division 2.1: Flammable, Non-Toxic Gas Flammable gas means any material that: Is ignitable at 101.3 kPA (14.7 psia) when in a mixture of 13 percent or less by volume with air; or; Has a flammable range at 101.3 kPa with air of at least 12 percent regardless of the lower limit.
Patrick went undefeated in county high-school tournaments. He made stickers with the words “STATE CHAMP” written on them in black marker and put them all over the house.
The original mass of flammable material and the mass of the oxygen consumed (typically from the surrounding air) equals the mass of the flame products (ash, water, carbon dioxide, and other gases). Lavoisier used the experimental fact that some metals gained mass when they burned to support his ideas (because those chemical reactions capture ...