<unk> -releasing products present significant risks. It is estimated that, in 2002, there were about 3300 accidents needing hospital treatment caused by liquid bleach in British homes, and about 160 due to bleaching powder. Chemical burns<unk>  releasing solutions, such as liquid bleach and solutions of bleaching powder, can burn the skin and cause eye damage, especially when used in concentrated forms. As recognized by the NFPA, however, only solutions containing more than 40% sodium hypochlorite by weight are considered hazardous oxidizers. Solutions less than 40% are classified as a moderate oxidizing hazard (NFPA 430, 2000). Release of<unk>  gas Mixing a hypochlorite bleach with an acid can liberate<unk>  gas.<unk>  is a respiratory irritant that attacks mucous membranes and burns the skin. As little as 3.53 ppm can be detected as an odor, and 1000 ppm is likely to be fatal after a few deep breaths. Exposure to<unk>  has been limited to 0.5 ppm (8-hour time-weighted average—38-hour week) by the U.S. OSHA. Due to transport and handling safety concerns, the use of sodium hypochlorite is preferred over<unk>  gas in water treatment. Reaction with other products<unk>  can react with other common household chemicals like vinegar or ammonia to produce toxic gases. Mixing an acid cleaner with a hypochlorite bleach can cause toxic<unk>  gas to be released. The hypochlorite anion and<unk>  are in equilibrium in water; the position of the equilibrium is pH dependent and low pH (acidic) favors<unk> , : Cl2 + H2O 2H+ + Cl− + ClO− A hypochlorite bleach can react violently with hydrogen peroxide and produce oxygen gas: :H2O2(aq) + NaOCl (aq) → NaCl (aq) + H2O(l) + O2(g) A 2008 study indicated that sodium hypochlorite and organic chemicals (e.g., surfactants, fragrances) contained in several household cleaning products can react to generate<unk> ted volatile organic<unk>  (VOCs). These<unk> ted<unk>  are emitted during cleaning applications, some of which are toxic and probable human carcinogens. The study showed that indoor air concentrations significantly increase (8–52 times for chloroform and 1–1170 times for carbon tetrachloride, respectively, above baseline quantities in the household) during the use of bleach containing products. The increase in<unk> ted volatile organic<unk> concentrations was the lowest for plain bleach and the highest for the products in the form of "thick liquid and gel." The significant increases observed in indoor air concentrations of several<unk> ted VOCs (especially carbon tetrachloride and chloroform) indicate that the bleach use may be a source that could be important in terms of inhalation exposure to these<unk> . The authors suggested that using these cleaning products may significantly increase the cancer risk. The hypochlorites in liquid bleach and bleaching powder can react with ammonia to form a number of products, including monochloramine (), then dichloramine () and finally nitrogen trichloride (). Similar reactions may occur with amines or related<unk>  and biological materials (such as urine). The result depends on the temperature, concentration, and how they are mixed. These<unk>  are very irritating to the eyes and lungs and are toxic above certain concentrations. Chronic exposure, for example, from the air at swimming pools where<unk>  is used as the disinfectant, can lead to the development of atopic asthma. Nitrogen trichloride is also a very sensitive explosive. Corrosion<unk>  releasing products may also cause corrosion of many materials and unintended bleaching of colored products. Neutralization Sodium thiosulfate is an effective<unk>  neutralizer. Rinsing with a 5 mg/L solution, followed by washing with soap and water, will remove<unk>  odor from the hands.
Chlorine-releasing compounds
Monoamine releasing agent
Glucose-elevating agent
Norepinephrine–dopamine releasing agent
Mucoactive agent
Chaotropic agent
Serotonin–norepinephrine–dopamine releasing agent
Cholinergic blocking drugs