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Phosphoric acid, also known as orthophosphoric acid, is a weak triprotic acid. Its most common form is in 75-85% aqueous solution, as a colorless and odorless viscous liquid; however, in its pure form, it is a white solid at room temperature and pressure. It is a cost-effective, widely available reagent with a wide range of applications.
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The most common usage is in fertilizers, accounting for more than 75% of its use. Phosphoric acid is (generally) nontoxic with a tangy taste, and is therefore used in its food grade form (additive E338) as a pH modifier, flavor enhancer, and preservative, particularly in cola beverages. In dentistry, phosphoric acid is a useful whitening, cleaning, and roughening agent. In cosmetics and skin-care, it is a useful pH modifier. It also has useful reactivity for cleaning rust off of metal surfaces.
In hydroponics pH solutions to lower the pH of nutrient solutions. While other types of acids can be used, phosphorus is a nutrient used by plants, especially during flowering, making phosphoric acid particularly desirable,
The acidic elixir that propelled the soda fountain drinks to new heights. Created as a neutral flavoured, shelf-stable mixture used to acidify drinks. Acid Phosphate adds a sparkle to drinks and helps carbonation when used with soda water.
Phosphoric acid is often used to acidify foods and beverages such as carious colas. It provides a tangy and sour taste. We use Phosphoric acid to treat the by-product of biodiesel. after methanol extraction, using phosphoric acid allows a clean separation of the glycerin and soaps. If done correctly, it can yield 90% pure glycerin. May also be used as a rust remover/inhibitor. Dilute to a 25-50% concentration with water and soak rusted metal parts. Over time, rust will remove and the phosphoric acid reacts with the metal to create a rust inhibiting barrier on the metal. Be sure to use gloves! Great for cleaning residue from metals. HAZARDOUS CHEMICAL: This item may not be compatible with other hazardous materials. Please view the compatibility chart if you plan to order multiple, hazardous items together. If you need two chemicals which are not compatible, please order them separately, as they cannot be shipped in the same box. Hazardous chemicals can only be shipped to the 48 US states and Canada. They also cannot be shipped to an APO. Hazardous chemicals may only be shipped via fedex ground. This product ships as a consumer commodity ORM-D. There are no extra fees to ship this item. This product is made in the USA.
In addition to being a chemical reagent, Phosphoric Acid has a wide variety of uses, including as a food additive. It provides a tangy taste and is used to acidify food products like sodas. Phosphoric acid-food grade is typically used for pH control and adjustment in the foods and beverage industry.
Phosphoric acid (orthophosphoric acid, monophosphoric acid or phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula H3PO4. It is commonly encountered as an 85% aqueous solution, which is a colourless, odourless, and non-volatile syrupy liquid. It is a major industrial chemical, being a component of many fertilizers.
The name "orthophosphoric acid" can be used to distinguish this specific acid from other "phosphoric acids", such as pyrophosphoric acid. Nevertheless, the term "phosphoric acid" often means this specific compound; and that is the current IUPAC nomenclature.
To produce food-grade phosphoric acid, phosphate ore is first reduced with coke in an electric arc furnace, to give elemental phosphorus. Silica is also added, resulting in the production of calcium silicate slag. Elemental phosphorus is distilled out of the furnace and burned with air to produce high-purity phosphorus pentoxide, which is dissolved in water to make phosphoric acid.
Phosphoric acid is commercially available as aqueous solutions of various concentrations, not usually exceeding 85%. If concentrated further it undergoes slow self-condensation, forming an equilibrium with pyrophosphoric acid:
Due to the self-condensation, pure orthophosphoric acid can only be obtained by a careful fractional freezing/melting process. As the concentration is increased higher acids are formed, culminating in the formation of polyphosphoric acids. It is not possible to fully dehydrate phosphoric acid to phosphorus pentoxide, instead the polyphosphoric acid becomes increasingly polymeric and viscous.
Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates. Phosphoric acid in soft drinks has the potential to cause dental erosion. Phosphoric acid also has the potential to contribute to the formation of kidney stones, especially in those who have had kidney stones previously.
Phosphoric acid is not a strong acid. However, at moderate concentrations phosphoric acid solutions are irritating to the skin. Contact with concentrated solutions can cause severe skin burns and permanent eye damage.
Phosphoric acid, also known as orthophosphoric acid or phosphoric(V) acid, is a mineral (inorganic) acid having the chemical formula H3PO4. Alternatively, orthophosphoric acid molecules can combine with themselves to form a variety of compounds referred to as phosphoric acids in a more general way.
Phosphoric acid is also an excellent chemical to use when passivating stainless steel. This formula is also great at adjusting the pH of Sparge water and your Mash pH. If you prefer to use the traditional pH adjusting ingredients we would suggest Acidulated Malt.
The general definition of an acid is any compound that yields H+ (hydrogen ions or protons) in solution or a chemical that reacts with alkalis (bases) to form salts. Solutions with pH values below 7.0 are acidic (see ph). In beer the term often pertains to sour, tart, acidic, and pungent aroma and/or taste. In most beer styles, notable acidic character is considered undesirable.
Most acids in beer are organic acids and include, most commonly, acetic (vinegar flavor), pyruvic, lactic (sour milk-like flavor), malic, and citric acid (strong tartness). They derive from raw materials, wort boiling and, mainly, yeast metabolism. Lactic and acetic acids can also derive from unwanted or uncontrolled microbial contamination. See acetic acid and lactic acid. The fall in pH during fermentation (typically by about one unit, for instance, from 5.20 to 4.20) depends in part on organic acid excretion.
These and other acids in beer influence flavor both directly, when present above their threshold levels, and by their influence on beer pH. Lactic acid, which is relatively weak, is sometimes used in the brewery for water composition and pH adjustment purposes (as the anions can aid the brewing process or promote flavor enhancement from raw materials). Stronger mineral acids, such as sulfuric acid and phosphoric acid, are used for passivating stainless steel and for cleaning brewing vessels and tanks. Phosphoric acid may also be used in acid-washing to reduce or eliminate bacterial infections in brewing yeast. Peracetic acid is an effective no-rinse sanitizer for brewery applications. Ascorbic acid (vitamin C) is sometimes used in beer as an antioxidant.
This highly concentrated phosphoric acid can be used as a non-foaming, non-rinse sanitiser when diluted with water to a concentration of 1ml per Litre of water. Phosphoric acid is also excellent for passifying stainless to prevent it from rusting. In brewing, phosphoric acid is also great for adjusting PH of sparge water and can be completely metabolized by yeast if it ends up on your fermenter.
Phosphoric Acid, 50% is a clear colorless liquid with no foreign odor with a minimum phosphoric acid equivalent of 49-51%. Phosphoric acid is relatively non-volatile and stable at elevated temperatures; it is a much milder acid than sulfuric, nitric, or hydrochloric acids. This product is generally recognized as safe as a miscellaneous and/or general purpose food additive under 21 CFR 182.1073 (Phosphoric Acid).
Did you know? Phosphoric acid contains a small amount of the mineral phosphorus. Phosphorus is found widely in nature and helps give our bodies energy. It is also a big component of bones and teeth.
The Ugi reaction constructs α-acylaminoamide compounds by combining an aldehyde or ketone, an amine, a carboxylic acid, and an isocyanide in a single flask. Its appealing features include inherent atom and step economy together with the potential to generate products of broad structural diversity. However, control of the stereochemistry in this reaction has proven to be a formidable challenge. We describe an efficient enantioselective four-component Ugi reaction catalyzed by a chiral phosphoric acid derivative that delivers more than 80 α-acylaminoamides in good to excellent enantiomeric excess. Experimental and computational studies establish the reaction mechanism and origins of stereoselectivity.
Phosphoric acid is a weak, inorganic acid commonly used as an etching agent, pH modifier, sanitizing agent, rust inhibitor, dispersing agent, chelating agent, and sometimes as a flavoring agent in food and beverages. Other uses of phosphoric acid include fertilizer manufacturing and the treatment of water and metal. Brainerd also offers phosphoric acid 75% and phosphoric acid 85% in technical and food grades.
Electronic grade phosphoric acid is prominently used in wafer etching and cleaning applications. The acidic properties of electronic grade phosphoric acid wash off the impurities from the metal surface, making the metal suitable for use in the electronics industry. 041b061a72