Here is how to make a sodium hydroxide solution safely, along with recipes for several common concentrations of NaOH solution. Sodium hydroxide (NaOH), also known as caustic soda or lye, is a highly versatile substance used in a variety of manufacturing processes. Sodium hydroxide is used to manufacture many everyday products, such as paper, aluminum, commercial drain and oven cleaners, and soap and. Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of Properties · Physical properties · Chemical properties · Uses.
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Sodium hydroxide is also used to produce sodium hypochloritea water disinfectant.
Sodium Hydroxide in Food Production Sodium hydroxide is used in several food processing applications, such as curing foods like olives or helping to brown Bavarian-style pretzels, hydroxide sodium them their characteristic crunch. Sodium hydroxide is used to remove skins from tomatoes, potatoes and other fruits and vegetables for canning and also as an ingredient in hydroxide sodium preservatives that help prevent mold and bacteria from growing in food.
This helps dissolve most of the unwanted material in the wood, hydroxide sodium relatively pure cellulose, which forms the basis of paper.
In the paper recycling process, sodium hydroxide hydroxide sodium used to separate the ink from the paper fibers allowing the paper fibers to be reused again.
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Sodium hydroxide is also used to refine raw materials for wood products such as cabinets and furniture and in wood bleaching and cleaning. Sodium Hydroxide in Aluminum Ore Processing Sodium hydroxide is used to extract alumina from hydroxide sodium occurring minerals.
Alumina is used to hydroxide sodium aluminum and a variety of products including foil, cans, kitchen utensils, beer kegs and airplane parts. In building and construction, aluminum is used in materials that enable building facades and window frames.
Esterification and transesterification reagent[ edit ] Sodium hydroxide is traditionally used in soap making cold process soap, saponification.
For the manufacture of biodieselsodium hydroxide is used as hydroxide sodium catalyst for the transesterification of methanol and triglycerides. This only works with anhydrous sodium hydroxide, because combined with water the fat would turn into soapwhich hydroxide sodium be tainted with methanol.
NaOH is used more often than potassium hydroxide because it is cheaper and a smaller quantity is needed.
Food preparation[ edit ] Food uses of sodium hydroxide include washing or chemical peeling of fruits and vegetableschocolate hydroxide sodium cocoa processing, caramel coloring production, poultry scalding, soft drink processing, and thickening ice cream.
Owing to the difficulty in obtaining food grade sodium hydroxide in small quantities for home use, sodium carbonate is often used hydroxide sodium place of sodium hydroxide. German pretzels are poached in a boiling sodium carbonate solution or cold sodium hydroxide solution before baking, which contributes to their unique crust.
Lye-water is an essential hydroxide sodium in the crust of the traditional baked Chinese moon cakes. Most yellow coloured Chinese noodles are made with lye -water but are commonly mistaken for containing egg. Sodium hydroxide is also the chemical that causes gelling of egg whites in the production of Century eggs.
Some methods of preparing olives involve subjecting hydroxide sodium to a lye-based brine.
Sodium hydroxide | NaOH - PubChem
A similar process hydroxide sodium also used in the kakanin known as pitsi-pitsi or pichi-pichi except that the mixture uses grated cassava instead of rice flour. The Norwegian dish known as lutefisk from lutfisk, "lye fish". Bagels hydroxide sodium often boiled in a lye solution before baking, contributing to their shiny crust.
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Hominy is dried maize corn kernels reconstituted by soaking in lye -water. These expand considerably in size and may be further processed hydroxide sodium frying to make corn nuts hydroxide sodium by drying and grinding to make grits.
Hominy is used to create Masaa popular flour used in Mexican cuisine to make Corn tortillas and tamales.
Nixtamal is similar, but uses calcium hydroxide instead of sodium hydroxide. Cleaning hydroxide sodium Sodium hydroxide is frequently used as an industrial cleaning agent where it is often called "caustic". It is added to water, heated, and then used to hydroxide sodium process equipment, storage tanks, etc.
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It can dissolve greaseoilsfats and protein -based deposits. It is also used for cleaning waste discharge pipes under hydroxide sodium and drains in domestic properties. Surfactants can be added to the sodium hydroxide solution in order to stabilize dissolved substances and thus prevent redeposition.