Liquid sodium hydroxide is colorless and has no odor. Firstaid measures eyes rinse with plenty of water for at least 15 minutes and seek medical attention immediately. The annual world production of sodium hydroxide is on the order of 60 million tons. Sodium hydroxide emergency and continuous exposure limits. Pdf effects of sodium hydroxide concentration on the physical. The msds was formatted to comply with ansi standard z400. This name is given due to the corrosive nature of this salt on animal and plant tissues. In concentrated form, it is used as a drain cleaner. Zeolite, clay, sodium hydroxide, physical properties, catalyst. Sodium hydroxide lb california proposition 65 this product does not contain any proposition 65 chemicals. Acgih threshold limit values components type value sodium hydroxide cas ceiling 2 mgm3 10732 us. Pdf in this work, varying concentration of naoh was used for the. Sodium hydroxide has been shown to be effective in removing proteins and nucleic acids. Caustic soda sodium hydroxide or naoh is most commonly manufactured by the.
Sodium hydroxide is a strong base with the formula naoh. The molecular formula for sodium hypochlorite is naocl. Water spray, dry powder, alcohol resistant foam, carbon dioxide. Department of transportation reportable quantity rq. Product file sodium hydroxide lesions are characterized by a brown coloration and a gelatinous appearance. Section 15 regulatory information us federal regulations tsca section 8b. Exposure controlspersonal protection control parameters exposure limits are listed below, if they exist. It is common practice in industrial manufacturing to save time by adding a salt, such as sodium chloride, to the sodium hydroxide solution to combine cleaning with. Sodium hydroxide uses, benefits, and chemical safety facts.
It is also used in petroleum refining, degreasing, etching, zinc extraction, tin plating, oxide coating, and food processing for peeling fruits and vegetables. State righttoknow regulations component massachusettsnew jersey pennsylvania illinois rhode island water x sodium hydroxide x x x x u. Because pure sodium hydroxide has a high affin ity for water, the physical and chemical. The chemical formula for sodium hydroxide is naoh molar mass of 39. Pocket guide to chemical hazards components type value sodium hydroxide cas ceiling 2 mgm3 10732 biological limit values no biological exposure limits noted for the ingredients. Sodium hydroxide is the main ingredient in household products such as liquid drain cleaners. It is also effective for inactivating most viruses, bacteria, yeasts, and endotoxins.
Do not use a solid straight water stream, as it may scatter and spread fire. Caustic soda is an alkali salt which is also called lye. Chemical information and properties sodium hydroxide. It can also be dangerous for staff and animals if it is improperly handled or not adequately rinsed after use. Sodium hydroxide naoh, or lye, is used in papermills, water treatment plants, and any number of a variety of other places. Sodium hydroxide is soluble in polar solvents such as water, ethanol, and methanol, and insoluble in organic solvents. Sodium hydroxide caustic soda is highly soluble in water, and sodium hydroxide solutions are strong bases. Dissolving solid naoh in water is a highly exothermic reaction and the resulting aq. Pdf investigation of naoh properties, production and sale mark. Calcium hydroxide traditionally called slaked lime is an inorganic compound with the chemical formula ca oh 2. Cutaneous lesions may be terebrant slow penetration and spreading to the deep skin layers.
Because sodium hydroxide is a strong base, it will dissociate completely into sodium and. Sodium hydroxide is one of the most commonly used industrial chemicals. Reacts rapidly and exothermically with organic and inorganic acids, with organic and inorganic acid anhydrides, including oxides of nonmetals such as sulfur dioxide, sulfur trioxide, phosphorus trioxide, phosphorus pentaoxide, and with organic and inorganic acid chlorides. The effects of concentration and sodium hydroxide on the. Sodium hydroxide solution refers to an aqueous solution of sodium hydroxide. The effects of concentration and sodium hydroxide on the rheological properties of potato starch gelatinisation article in carbohydrate polymers 502. Methods and material for containment and cleaning up. Contact may severely irritate skin, eyes, and mucous membranes. Rinse with plenty of water for at least 15 minutes and seek medical attention immediately. Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula naoh. In addition the ph of hypochlorite is high because sodium hydroxide is used in the manufacturing process. Sodium hydroxide flakes material safety data sheet cas no. It also includes information on the manufacture, physical properties, safety. Request pdf sodium hydroxide and sodium trimetaphosphate levels affect properties of starch in addition to being consumed as food, starch is considered for replacement of petroleumbased.
Furthermore, sodium hydroxide is a highly corrosive product, which, even when used at an appropriate concentration, could damage your floors and equipment. Caustic soda naoh chemical formula, properties, and uses. When dissolved in water or neutralized with acid it liberates substantial heat, which may be sufficient to ignite combustible materials. Information on basic physical and chemical properties. Observations about the appearance of sodium bicarbonate such as color, odor, taste and state of matter are all physical properties.
Sodium hydroxide is used to manufacture many everyday products, such as paper, aluminum, commercial drain and oven cleaners, and soap and detergents. Use of sodium hydroxide for cleaning and sanitizing. Caustic soda sodium hydroxide or naoh is most commonly manufactured by the electrolysis of a sodium chloride nacl solution. This standard can be referenced in documents for purchasing and receiving sodium hydroxide and can be used as a guide for testing the physical and chemical properties of. Other common names for sodium hydroxide are caustic soda or lye. It is highly soluble in water and a considerable amount of heat is. Soda lye contains in general 30 wt% of sodium hydroxide.
Inhalation move casualty to fresh air and keep at rest. It is a colorless crystal or white powder and is produced when quicklime calcium oxide is mixed, or slaked with water. Oxychem does not use mercury based electrolytic cells to produce caustic soda. Sodium hydroxide is widely used in the manufacture of soaps, paper, rayon, cellophane, mercerized cotton, aluminum, and many chemicals. Sodium hydroxide emergency and continuous exposure limits for. At room temperature, pure sodium hydroxide naoh is a white, odorless solid. Sodium hydroxide solution appears as a colorless liquid. Oxychem manufactures caustic soda using either membrane or diaphragm electrolytic cells. Sodium hydroxide formula sodium hydroxide uses, properties. It is universally used as a neutralisation agent in the chemical industry, paper making, etc. Structure, properties, spectra, suppliers and links for. Sodium hydroxide and sodium trimetaphosphate levels affect. Sodium hydroxide naoh, also known as caustic soda or lye, is a highly versatile substance used in a variety of manufacturing processes. Pdf this paper investigates some kind of properties of naoh and the consumption market.
Component regulation type of listing valuenotation sodium hydroxide acgih c 2 mgm3 osha z1 twa 2 mgm3 osha p0 c 2 mgm3. At room temperature, sodium hydroxide is a white crystalline odorless solid that absorbs moisture from the air. Properties although the commercial strength of naocl is 12. It can react violently with strong acids and with water. Sodium hydroxide naoh or hnao cid 14798 structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities. The purpose of this standard is to provide the minimum requirements for sodium hydroxide, including physical, chemical, sampling, testing, packaging, and shipping requirements. Material safety data sheet sodium hydroxide solution. Sodium hydroxide revision date 17jan2018 tsca 12b not applicable sara 3 not applicable sara 3112 hazard categoriessee section 2 for more information cwa clean water act component cwa hazardous substances cwa reportable quantities cwa toxic pollutantscwa priority pollutants sodium hydroxide x lb clean air act not. Sodium bicarbonate is a white, crystalline powder that sometimes forms lumps. It has many names including hydrated lime, caustic lime, builders lime, slack lime, cal, or pickling lime. Naoh solution is a colorless, odorless and important base used in the laboratory. Using sodium hydroxide lye as a disinfectant university. The antimicrobial spectrum of disinfectants acids hydrochloric acid, acetic acid, citric acid alcohols ethanol, isopropanol aldehydes formaldehyde, paraformaldehyde, gluteraldehyde alkalis sodium hydroxide, ammonium hydroxide, sodium carbonate biguanides chlorhexidine, nolvasan, chlorhex, virosan halogens sodium hypochlorite peroxygens. Sodium hydroxide is a coproduct of chlorine production.
1434 984 108 556 1098 238 85 1467 1470 634 357 1130 1531 310 527 743 1416 571 19 1445 1544 910 624 1017 1331 1528 781 61 759 1392 500 1139 358 405 1208 409 1406