Search results
Results from the WOW.Com Content Network
Bromoethane, also known as ethyl bromide, is a chemical compound of the haloalkanes group. It is abbreviated by chemists as EtBr (which is also used as an abbreviation for ethidium bromide ). This volatile compound has an ether-like odor.
Biz Stain & Odor Eliminator is an enzyme-based, oxygenated and color-safe bleach, detergent booster and pre-treater for laundry stains, sold in both liquid and powder form. It is an enzyme -based bleach that can break down proteins.
Bleach activation is also known as perhydrolysis. Persalts are inorganic salts that are used as hydrogen peroxide carriers (examples include sodium percarbonate and sodium perborate). Persalts and bleach activators are included together in powder laundry detergents that contain bleach. In the wash, both compounds dissolve in the water.
Its bleaching action is based on ''destroying the phenolic groups and the carbon–carbon double bonds.''. [30] The major source of chemical bleaching is Hydrogen peroxide H 2 O 2 that contains a single bond, (–O–O–). When this breaks down it gives rise to very reactive oxygen specie, which is the active agent of the bleach.
Oxygen bleach works best when dissolved in hot water, which activates it; to use oxygen bleach to soak items that call for cold water only, start by dissolving the powder in hot water and allow ...
Ethidium bromide (or homidium bromide, [2] chloride salt homidium chloride) [3] [4] is an intercalating agent commonly used as a fluorescent tag (nucleic acid stain) in molecular biology laboratories for techniques such as agarose gel electrophoresis.
For example, the label of a household bleach product may specify "5% sodium hypochlorite by weight." That would mean that 1 kilogram of the product contains 0.05 × 1000 g = 50 g of NaClO. A typical oxidation reaction is the conversion of iodide I − to elemental iodine I 2. The relevant reactions are NaClO + 2 H + + 2 I − → NaCl + H 2 O ...
This is the mechanism of bleaches based on chlorine but also of oxygen-anions which react through the initial nucleophilic attack. [12] A reducing bleach works by converting double bonds in the chromophore into single bonds. This eliminates the ability of the chromophore to absorb visible light. This is the mechanism of bleaches based on sulfur ...