![]() ![]() This makes 2-mercaptoethanol useful as a protecting group, giving a derivative whose stability is between that of a dioxolane and a dithiolane. Reactions Ģ-Mercaptoethanol reacts with aldehydes and ketones to give the corresponding oxathiolanes. Thiodiglycol and various zeolites catalyze the reaction. Due to its diminished vapor pressure, its odor, while unpleasant, is less objectionable than related thiols.Ģ-Mercaptoethanol is manufactured industrially by the reaction of ethylene oxide with hydrogen sulfide. It is widely used because the hydroxyl group confers solubility in water and lowers the volatility. ME or βME, as it is commonly abbreviated, is used to reduce disulfide bonds and can act as a biological antioxidant by scavenging hydroxyl radicals (amongst others). Group E Oxidizing Chemicals: Chemicals that will very often react violently with organics.2-Mercaptoethanol (also β-mercaptoethanol, BME, 2BME, 2-ME or β-met) is the chemical compound with the formula HOCH 2CH 2SH. Group F Inorganic Acids: Chemicals that are corrosive to metals or skin.Įxamples: Hydrochloric Acid, Hydrofluoric Acid Group C Inorganic Bases: Chemicals that are corrosive to metals or skin.Įxamples: Sodium Hydroxide, Potassium Hydroxide Information on peroxide forming compounds Acetic Anhydride and water, glycols or alcohols will result in a violent reaction and possibly a fire.Monomers and iron, acids or even water can result in violent reactions.Inhibitors must be monitored to maintain their activity. They are sold with an inhibitor to prevent this reaction.Examples are methyl methacrylate, acrylic acid and acrolein. Monomers can self-react and violently generate pressure or fire.Chloroform and acetone with a base may react violently.Activated Platinum group metals on carbon and metal hydrides have caused several lab fires.Azides and metals can combine to generate shock sensitive salts which can detonate.Piranha waste should be handled separate from all other waste streams. Always accumulate Piranha waste in a plastic coated glass bottle with vented cap, and wait until cool before closing. Piranha solutions in contact with paper products have resulted in trash can fires. Piranha solution and any organic material or metals can react violently and result in a fire or overpressurization.Never mix nitromethane with bases or amines,.Nitromethane waste must be handled separately. ![]() Nitrobenzene and aluminum or tin chloride and organics may result in an explosion.Sodium or potassium chlorate and organics has resulted in explosions.Potassium permanganate and sulfur has resulted in flash fires.Ammonium nitrate or hydroxylamine nitrate and organic material can result in an explosive compound.Mixing silver nitrate and ethanol has resulted in serious fires.Mixing silver nitrate and ammonia with sodium or potassium hydroxide can form explosive “fulminating silver”.Inorganic nitrate salts or bases and organics can form highly unstable compounds which may detonate.Peroxides and organics or metals, such as hydrogen peroxide and ethanol, aluminum, or copper can result in a fire.They should not be stored or mixed with any mineral acids. In concentrated form, these materials are flammable. Acetic acid, Acetic Anhydride, and Formic Acid are a special class of chemicals as they are both an acid and organic.Perchloric acid can react with wood or paper to form cellulose perchlorate which can spontaneously combust.Nitric or perchloric acid (even when dilute) and any organic material such as ethanol, acetic acid, or oil can result in excessive heat or a fire.Acids and bleach, azides, cyanides, sulfides, metals, or carbides can result in the generation of toxic fumes.If the mixture boils over, it may result in serious injury. Acids and bases (ex: hydrochloric acid and ammonium hydroxide) generally results in generation of excessive heat, including boiling over.Additional information is available from The American Chemical Society – Incompatible Chemicals.īelow are some notable situations which have occurred when incompatible materials are mixed: While this tool is intended for use with pure chemicals, diluted materials may exhibit the same characteristics. If you plan to mix chemicals or wastes in a waste container or group them in a bag, tray or bucket, you must first determine whether any dangerous situations may result.Ĭonsult the Stanford Chemical Safety Database to determine the Storage or Compatibility Group of chemicals intended for mixing. Mixing of incompatible materials (chemicals or wastes) can result in excessive heat, over pressurization, fire or other dangerous situations. ![]()
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