Trihydrogen Phosphate

Understanding Trihydrogen Phosphate: A Simple Guide

Trihydrogen phosphate, more commonly known as phosphoric acid (H₃PO₄), is a crucial chemical compound with a wide range of applications. While its chemical name might sound intimidating, understanding its properties and uses is surprisingly straightforward. This article aims to demystify trihydrogen phosphate, explaining its structure, properties, uses, and safety considerations in an accessible way.

1. The Structure of Trihydrogen Phosphate

Phosphoric acid's name gives a strong hint about its structure. "Trihydrogen" indicates the presence of three hydrogen atoms (H), while "phosphate" refers to the phosphate group (PO₄). Imagine a central phosphorus (P) atom bonded to four oxygen (O) atoms. Three of these oxygen atoms are each also bonded to a hydrogen atom, forming –OH groups. This arrangement gives phosphoric acid its characteristic acidic nature. The chemical formula, H₃PO₄, concisely represents this structure. Think of it like a central hub (phosphorus) with three arms (–OH groups) branching out.

2. The Properties of Phosphoric Acid

Phosphoric acid exhibits several key properties that determine its uses:

Acidity: The three hydrogen atoms can be released as hydrogen ions (H⁺) in a solution, making it a triprotic acid (meaning it can donate three protons). This release of H⁺ ions is what makes it acidic; the more H⁺ ions, the stronger the acid. Phosphoric acid is a relatively weak acid compared to others like sulfuric acid, meaning it doesn't fully dissociate into ions in water.

Solubility: Phosphoric acid is highly soluble in water, meaning it readily dissolves. This property is crucial for its many applications involving aqueous solutions. Imagine dissolving a spoonful of citric acid (another weak acid) in water – phosphoric acid behaves similarly, albeit with a slightly different taste and reaction.

Viscosity: Phosphoric acid is a viscous liquid, meaning it's thick and syrupy. This viscosity affects how it's handled and applied in various processes.

Non-toxicity (relative): While phosphoric acid is an acid and can cause irritation, it is considered relatively non-toxic in comparison to other strong acids. However, it’s still important to handle it with care and avoid ingestion or skin contact.

3. Uses of Phosphoric Acid

The unique properties of phosphoric acid make it extremely versatile, with applications spanning numerous industries:

Food and Beverages: It's used as a food additive (E338) to regulate acidity, often found in soft drinks, processed foods, and jams. The tartness of cola drinks is partly due to phosphoric acid.

Fertilizers: Phosphoric acid is a key component in the production of phosphate fertilizers, crucial for plant growth. Plants need phosphorus to develop strong roots and produce healthy fruits and vegetables. These fertilizers supply phosphorus in a form plants can easily absorb.

Rust Removal: Its acidity makes it effective in removing rust from metal surfaces. However, due to its relatively weak acidity, it usually requires a longer exposure time compared to stronger acids.

Dental and Medical Applications: It's found in some dental products and certain medical treatments, often playing a role in pH regulation or cleaning.

Water Treatment: It can be used in water treatment to adjust pH levels and remove impurities.

4. Safety Considerations

While relatively non-toxic, phosphoric acid can still pose risks if handled improperly:

Eye and Skin Irritation: Contact with skin or eyes can cause irritation and burns. Always wear appropriate safety goggles and gloves when handling phosphoric acid.

Ingestion: Ingestion can cause serious internal damage. If ingested, immediately seek medical attention.

Storage: Store phosphoric acid in a cool, dry place, away from incompatible materials.

5. Key Takeaways

Trihydrogen phosphate, or phosphoric acid, is a common and useful chemical compound with a wide array of applications. Its acidic nature, solubility, and relatively low toxicity contribute to its versatility. However, it's crucial to handle it with care, using appropriate safety measures to avoid potential harm. Understanding its properties and applications allows for safe and responsible usage.

FAQs

1. Is phosphoric acid dangerous? While relatively less dangerous than many strong acids, it's still corrosive and can cause irritation or burns if it comes into contact with skin or eyes. Always handle with caution.

2. What is the difference between phosphoric acid and phosphorus? Phosphorus is an element, while phosphoric acid is a compound formed from phosphorus, oxygen, and hydrogen. Think of it as the difference between an ingredient (phosphorus) and a dish (phosphoric acid) made from that ingredient.

3. Can I use phosphoric acid to clean my toilet? While its acidity can help remove some stains, using strong acids for household cleaning can damage surfaces. There are safer, commercially available toilet bowl cleaners designed for that purpose.

4. Is phosphoric acid biodegradable? Phosphoric acid itself is not considered a pollutant, but its environmental impact depends on the context of its use and disposal. Improper disposal can have negative consequences on the environment.

5. Where can I buy phosphoric acid? Phosphoric acid is available from chemical suppliers, some hardware stores (often in diluted form for rust removal), and online retailers, depending on the concentration required and regulations in your area. Always check local regulations before purchasing and ensure proper safety procedures are followed.

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SAFETY DATA SHEET - Fisher Sci Potassium phosphate, dibasic Revision Date 24-Dec-2021 Component CAS No Weight % Dipotassium phosphate 7758-11-4 >95 4. First-aid measures Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention. Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Get ...

Safety Data Sheet - 5463907.app.netsuite.com Trihydrogen Phosphate Solution in Acetonitrile . Recommended Use: For manufacturing, industrial, and laboratory use only. Use as catalyst, as a solvent, or as a laboratory reagent. Uses Advised Against: Not for food, drug, or household use. Supplier: Rocky Mountain Reagents, Inc. 4621 Technology Drive, Golden, CO 80403

SAFETY DATA SHEET - Fisher Sci Potassium phosphate, monobasic Revision Date 25-Apr-2024 ingestion and inhalation. Avoid dust formation. Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product.

SAFETY DATA SHEET Revision Date 05/01/2025 Version 6 Product name : Potassium phosphate tribasic Product Number : P5629 Brand : Sigma-Aldrich CAS-No. : 7778-53-2 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances Uses advised against : The product is being supplied under the TSCA R&D Exemption

SAFETY DATA SHEET Tripotassium Phosphate - Nexchem Tripotassium Phosphate . Issued: 22/05/2023 Page 2 . Precautionary statements: Prevention: P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P280 Wear eye protection/ face protection. Response: P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

Vascular Calcification: Key Roles of Phosphate and Pyrophosphate systems: trihydrogen phosphate (H3P04), dihydrogen phosphate ion (H2PO4), hydrogen phosphate ion (HPO 4 2), and phosphate ion (PO4 2). Various phosphate-calcium salts are produced in the presence of calcium, including anhydrous monocalcium phosphate (Ca(H2PO4)2), anhydrous dicalcium phosphate (CaHPO4), -tricalcium phosphate ( -Ca3(PO4)2),

SAFETY DATA SHEET Revision Date 09/06/2024 Version 8 Product name : di-Potassium hydrogen phosphate anhydrous for analysis EMSURE® Product Number : 1.05104 Catalogue No. : 105104 Brand : Millipore CAS-No. : 7758-11-4 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Reagent for analysis, Chemical production

SAFETY DATA SHEET - ICL tripotassium trihydrogen phosphate dihydrate >2000 mg/kg (Rat) >2000 mg/kg (Rat) - Delayed and immediate effects as well as chronic effects from short and long-term exposure Skin corrosion/irritation Based on available data, the classification criteria are not met.

Synthesis and crystal structure of yttriumtrihydrogenphosphate … Yttrium trihydrogen phosphate YH 3 (PO 4) 2 belongs to a little-studied family, showing difficulties in the synthesis. Earlier [1], we reported the existence of YH 3 (PO 4) 2. The aim of the present work was to elaborate synthesis technique, capable of ensuring the preparation of single-phase sample of YH 3 (PO 4) 2, and to study its crystal ...

Chapter 4 Thermochemical Properties of Phosphates - Springer This chapter summarizes the thermochemical data of phosphate ions, aqueous complex species as well as minerals occurring in natural environments. The data are presented in such a way as to express all equilibrium reactions as a function of a set of reference aqueous ions.

19.1 Acid & Base CHAPTER 19 - dakotahonorschem.weebly.com ACID: hydrogen-ion donor BASE: hydrogen-ion acceptor conjugate acid and a conjugate base. Substances that either act as a base or an acid. Water is the best example. This expands Acid/Base definitions, by allowing us to classify acids and bases in the absence of H+, H3O+, and OH-. Strong acids completely ionize and weak acids only partly ionize.

SAFETY DATA SHEET Revision Date 08/05/2024 Version 8 Product name : Potassium phosphate tribasic Product Number : RDD019 Brand : Sigma CAS-No. : 7778-53-2 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances Uses advised against : The product is being supplied under the TSCA R&D Exemption

SAFETY DATA SHEET Product Name Sodium dihydrogen phosphate Cat No. : 40145 CAS No 7558-80-7 Synonyms Sodium dihydrogen phosphate, anhydrous; Dihydrogen sodium phosphate, anhydrous Recommended Use Laboratory chemicals. Uses advised against Food, drug, pesticide or biocidal product use. Details of the supplier of the safety data sheet 2. Hazard(s) identification ...

SYNLETT Tripotassium Phosphate: From Spotlight 339 Buffers to … Tripotassium phosphate (potassium phosphate tribasic, K 3 PO 4) is a strong inorganic base (pK a = 12.32 for the conjugate acid). It is non-toxic, very inexpensive, and available from many chemical supply companies. This chemical is used as a food additive or to form stable phos-phate buffer solutions in water. However, it is soluble in

The role of sodium phosphate cotransporters in ectopic calcification Organic phosphate that is ingested in foods is hydrolysed in the gastrointestinal tract, releasing inorganic phosphate. Aqueous phos-phate exists in four forms, according to its triprotic equilibrium: 1 — trihydrogen phosphate (H3PO. 2–). respect to the third (pK = 12.4) [3].

SAFETY DATA SHEET - Fisher Sci Phosphorus trihydride (phosphine). As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear. 6. Accidental release measures. Use personal protective equipment as required. Ensure adequate ventilation. Avoid dust formation. Should not be released into the environment.

Safety Data Sheet - 5463907.app.netsuite.com Synonyms: o-Phosphoric Acid Solution, White Phosphoric Acid Solution, Trihydrogen Phosphate Solution . Recommended Use: For manufacturing, industrial, and laboratory use only. Use as a catalyst, as a solvent, or as a laboratory reagent. Uses Advised Against: Not for food, drug, or household use. Supplier: Rocky Mountain Reagents, Inc.

SAFETY DATA SHEET - Fisher Sci Adenosine 5'-(trihydrogen diphosphate), 2'-(dihydrogen phosphate), 5'->5'-ester with 3-(aminocarbonyl)-1-.beta.-D-r ibofuranosylpyridinium hydroxide, inner salt, disodium salt 24292-60-2 Not applicableNot applicableNot applicableNot applicable Component CAS NoSeveso III Directive (2012/18/EC) - Qualifying Quantities for Major Accident Notification

Enzymatic Potassium Adenosine 5'-(trihydrogen phosphate) (58-64-0) Mobility in soil 0.1324 Source: EPISUITE 12.5. Other adverse effects No additional information available. Enzymatic Potassium Issue date: 8/25/2022 Safety Data Sheet According to ABNT NBR 14725-4 8/25/2022 EN (English) 5/5

Role of the extracellular ATP/pyrophosphate metabolism cycle in ... In biological systems, phosphate exists in four forms (see Fig. 1) that are classified on the basis of the triprotic equilibrium: trihydrogen phosphate (H3PO4), dihydrogen phosphate ion (H2PO4 −), hydrogen phosphate ion (HPO4 2−), and phosphate ion (PO4 3−).

Trihydrogen Phosphate

Understanding Trihydrogen Phosphate: A Simple Guide

1. The Structure of Trihydrogen Phosphate

2. The Properties of Phosphoric Acid

3. Uses of Phosphoric Acid

4. Safety Considerations

5. Key Takeaways

FAQs

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