stated. ", "Examples of Common Laboratory Chemicals and their Hazard Class", Ullmann's Encyclopedia of Industrial Chemistry, "Sodium Hydroxide Storage Tanks & Specifications", "Exothermic vs. Endothermic: Chemistry's Give and Take", Solid-Liquid Equilibrium (SLE) and Vapour-Liquid Equilibrium (VLE) of Aqueous NaOH, "Trafigura case: toxic slop left behind by caustic washing", "A Guide to Caustic Chemicals Used in Soap Making | Brenntag", "Sodium Hydroxide | Uses, Benefits, and Chemical Safety Facts", Clean green finish that sends a loved one down the drain, "Sodium:Getting rid of dirt – and murder victims", "ATSDR – Medical Management Guidelines (MMGs): Sodium Hydroxide", "Side by Side Comparison: Potassium Hydroxide and Sodium Hydroxide - Similarities, Differences and Use Cases", "Olives: Safe Methods for Home Pickling (application/pdf Object)", "Drinking Water Treatment – pH Adjustment", "Drinking Water Issues Corrosive Water (Lead, Copper, Aluminum, Zinc and More)", "Empa – 604 – Communication – NaOH-heat-storage", "aluminium_water_hydrogen.pdf (application/pdf Object)", History of Science and Technology in Islam: Description of Soap Making, CDC – Sodium Hydroxide – NIOSH Workplace Safety and Health Topic, Titration of acids with sodium hydroxide; freeware for data analysis, simulation of curves and pH calculation, Caustic soda production in continuous causticising plant by lime soda process, https://en.wikipedia.org/w/index.php?title=Sodium_hydroxide&oldid=990572000, Short description is different from Wikidata, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from May 2010, Creative Commons Attribution-ShareAlike License, It is used for making soaps and detergents. Accidental contact between a caustic cleaning solution (probably containing sodium hydroxide) and Pentol caused a violent explosion. Soluble in water. sodium hydroxide is used for hard bar soap while. galvanized metals, etc.). Spencer Umfreville Pickering (1893): "LXI.—The hydrates of sodium, potassium, and lithium hydroxides". Unless otherwise stated, permeation was measured for single chemicals. National Ocean Service, Sodium hydroxide is corrosive to several metals, like aluminium which reacts with the alkali to produce flammable hydrogen gas on contact: + + (NFPA Pub. Lower Explosive Limit (LEL): data unavailable, Upper Explosive Limit (UEL): data unavailable, Vapor Density (Relative to Air): data unavailable. Fire- Fighting Measures Extinguishing Media: Dry chemical, carbon dioxide, alcohol foam, water. Safety Information. It is the user's responsibility to 5.1 FLAMMABLE PROPERTIES. Normally stable but can become unstable at elevated temperatures and pressures. It is subject to revision as guarantee of results and assumes no obligation or liability... CAUSTIC SODA, [DRY SOLID, FLAKE, BEAD, OR GRANULAR], SODIUM HYDROXIDE, [DRY SOLID, FLAKE, BEAD, OR GRANULAR]. Thacker, H. Leon; Kastner, Justin (August 2004). It can cause irritation to the eyes, skin, and mucous membrane; an allergic reaction; eye and skin burns; and temporary loss of hair. DuPont believes to be reliable. Sodium hydroxide is a highly caustic base and alkali that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns. S. C. Mraw, W. F. Giauque (1974): "Entropies of the hydrates of sodium hydroxide. Normalized breakthrough times The permeation characteristics of mixtures can deviate considerably Low-temperature heat capacities and heats of fusion of the α and β crystalline forms of sodium hydroxide tetrahydrate". Contact (as a drying agent) with tetrahydrofuran, which often contains peroxides, may be hazardous---explosions have occurred in such a use of the chemically similar potassium hydroxide [NSC Newsletter Chem. When sodium is mixed with water, a chemical reaction takes place and new compounds are formed, namely sodium hydroxide and hydrogen gas. Washing is continued for at least ten to fifteen minutes. Readily absorbs moisture from the air to give caustic semi-solids that attack aluminum and zinc with the evolution of flammable hydrogen gas. Thus, protective equipment, like rubber gloves, safety clothing and eye protection, should always be used when handling this chemical or its solutions. 5.2 FLAMMABLE LIMITS NA . Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. that the garment selected is suitable for the intended use. DuPont makes no This section provides a listing of alternate names for this chemical, G. E. Brodale and W. F. Giauque(1962): "The freezing point-solubility curve of aqueous sodium hydroxide in the region near the anhydrous-monohydrate eutectic". Since it is used extensively, this white and odorless, non volatile aqueous solution can be very poisonous for the skin, and deadly if ingested. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH−. Office of Response and Restoration, The fabric permeation data was generated for DuPont by independent (method A and B) or ASTM D6978 test methods. testing laboratories using ASTM F739, EN369, EN 374-3, EN ISO 6529 Sodium hydroxide is very corrosive. 1967]. National Oceanic and Atmospheric Administration. Readily absorbs moisture from the air to give caustic semi-solids that attack aluminum and zinc with the evolution of flammable hydrogen gas. Heating with a mixture of methyl alcohol and trichlorobenzene during an attempted synthesis led to a sudden increase in pressure and an explosion [MCA Guide for Safety Appendix 3 1972]. Precautions for Firefighters: Carbon monoxide and unidentified organic compounds may be formed during combustion. are damaged, end user should discontinue use Sodium hydroxide solution is not compatible with zinc, aluminum or their alloys (i.e. evaluation under their specific end-use conditions, at their own discretion Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. Data 1966]. Sodium hydroxide is used in the manufacturing of soaps, cotton, rayon, petroleum, natural gas, and vegetable refining. of garment to avoid potential exposure to chemical. Closed containers may rupture violently when heated releasing contents. It is used as drain cleaners that contain sodium hydroxide convert fats and grease that can clog pipes into soap, which dissolves in water. The information set forth herein reflects laboratory Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur known to react with the Strong corrosive action on contacted tissues. Dissolution can liberate enough heat to cause steaming and spattering and ignite adjacent combustible material [Haz. rates than the fabric. INHALATION: dust may cause damage to upper respiratory tract and lung itself, producing from mild nose irritation to pneumonitis. All chemicals have A white solid. Incompatible Materials Acids, Organic materials, Metals, Hazardous Decomposition ProductsSodium oxides Hazardous Polymerization Hazardous polymerization does not occur. of DuPont or others covering any material or its use. EYE CONTACT: produces severe damage. Anyone intending to use this information should first verify Sodium hydroxide (NaOH) is a an odorless, white crystalline solid that absorbs moisture from the air. L. E. Murch, W. F. Giauque (1962): "The thermodynamic properties of sodium hydroxide and its monohydrate. Since conditions of use [MCA Case History 363(1964)]. For electric vehicles or equipment, ERG Guide 147 (lithium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. Incompatibilities: Sodium hydroxide in contact with acids and organic halogen compounds, especially trichloroethylene, may causes violent reactions. INGESTION: severe damage to mucous membranes; severe scar formation or perforation may occur. Eye: If this chemical contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids. Reacts rapidly and exothermically with acids, both organic and inorganic. III. 27°C unless otherwise stated. ... in connection with this information. relative humidity per military standard MIL-STD-282. and risk. Sodium hydroxide is used in the manufacturing of soaps, cotton, rayon, petroleum, natural gas, and vegetable refining. Serged and bound seams are degraded by some hazardous liquid Toxic sodium oxide fumes can be generated at high temperatures. Chem. Contact with metals may evolve flammable hydrogen gas. More info about absorbents, including situations to watch out for... National Oceanic and Atmospheric Administration. 3.5H2O".