basicity of metaphosphoric acid

Fire Protection Composition and Use Thereof

The invention relates to a fire protection composition comprising: a binder based on an aqueous or solvent-based polymer dispersion fire protection additives comprising a physically acting expanding agent a compound containing phosphorus selected from among salts or esters of phosphorus oxyacids and glass fiber and an acid-resistant inorganic filler

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EUR

_ metaphospheric acid solution 30 % ( w / v ) : crush a few pieces of vitreous metaphosphoric acid in a mortar weigh 30 g and wash rapidly by covering the pieces with distilled water and stir discard the washing water dissolve the washed acid in distilled water with stirring make up to 100 ml

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Study package for p block

Study package for p block-12 Ans In H3PO4 since there are three OH groups present in H3PO4 its basicity is three i e it is a tribasic acid 9 What happens when H3PO3 is heated? acid H3PO3 Phosphorus acid H4P2O6 Hypophosphoric acid H3PO4 Orthophosphoric acid H4P2O7 Pyrophosphoric acid HPO3 Metaphosphoric acid Oxygen Family

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Reaction product of a phosphorous acid with

10 02 2005Polyphosphoric acid a commercially available form can also be prepared by heating H 3 PO 4 with sufficient phosphoric anhydride to give the resulting product an 82-85% P 2 O 5 content as described in the Merck Index 10 th edition #7453 Such a polyphosphoric acid can be obtained from Aldrich Chemical and is used in several of our examples

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Chemistry Semi Final Day 1 Flashcards

Acid-base titration: a titration that is based on an acid-base (neutralization) reaction Gives an acid/ base titration curve plots pH of solution vs the amount of acid/base added Has equivalence point where stoichiometric amount of reactant has been added Acid-base indicators are weak acids or bases having differently colored acidic and basic

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Oxyacids of phosphorus Oxidation number +5 +3 +1 H3PO4-H2O→HPO3 Main Compounds of Phosphorus Chemical formule H3PO4 H3PO3 H3PO2 Name Phosphoric acid Phosphorous acid Hypophosphorous acid metaphosphoric acid 2H3PO4-H2O→H4P2O7 diphosphoric acid 3H3PO4-2H2O→H5P3O10 triphosphoric acid 3H3PO4-3H2O→(HPO3)3 trimetaphosphoric acid 4H3PO4-4H2O→(HPO3)4 tetrametaphosphoric acid

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Use decomposed in a sentence

Decomposed sentence examples It forms red crusts is insoluble in cold water but is decomposed by boiling water 5 3 The original hypothesis of Baeyer suggested that the course of events is the following: the carbon dioxide is decomposed into carbon monoxide and oxygen while water is simultaneously split up into hydrogen and oxygen the hydrogen and the carbon monoxide unite to form

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Some aspects of the chemistry and toxic action of organic

You can write a book review and share your experiences Other readers will always be interested in your opinion of the books you've read Whether you've loved the book or not if you give your honest and detailed thoughts then people will find new books that are right for them

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Not Only Hydrogen Bonds: Other Noncovalent

In this review we provide a consistent description of noncovalent interactions covering most groups of the Periodic Table Different types of bonds are discussed using their trivial names Moreover the new name "Spodium bonds" is proposed for group 12 since noncovalent interactions involving this group of elements as electron acceptors have not yet been named

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SUPRATIM DAS DURGAPUR WEST BENGAL 9434008713

SUPRATIM DAS DURGAPUR WEST BENGAL its basicity is three i e it is a tribasic acid 9 What happens when H 3 PO 3 is heated? Ans H 3 PO 3 on heating undergoes disproportionation reaction to form PH 3 and H 3 PO 4 The oxidation numbers of P in H 3 PO 3 PH 3 and H 3 PO 4 are +3 −3 and +5 respectively As the oxidation number of the same element is decreasing and increasing during

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QUANTUM OF CHEMISTRY JODHPUR: 7 The p

07 10 20127 The p-Block Elements Diversity in chemistry is the hallmark of p–block elements manifested in their ability to react with the elements of s– d– and f–blocks as well as with their own In Class XI you have learnt that the p-block elements are placed in groups 13 to 18 of the periodic table Their valence shell electronic configuration is ns 2 np 1–6 (except He which has 1s

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Orthophosphoric Acid (H3PO4)

10 09 2018Basicity of Orthophosphoric Acid (H3PO4) H4P2O7 to metaphosphoric acid (H3PO4) n What are the side effects of orthophosphoric acid? Ingestion: Lips tongue throat and stomach will burn Symptoms may include nausea vomiting cramps in the stomach and diarrhea Might result in permanent damage Long-Term ( Chronic) Effects of exposure: At low concentrations: can cause raw red

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نصيحة 1: كيفية تحديد قاعدية الحمض

في الأحماض monobasic ، كل حام يحتوي على ذرة hydrogen واحدة فقط HF - hydrofluoric (hydrofluoric) HCl - hydrochloric (hydrochloric) HBr - hydrobromic HI - hydroiodicNO3 - nitricNO2 - nitrogenousHPO3 - metaphosphoric 3

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Phosphoric acids and phosphates

The phosphoric acid units can be bonded together in rings (cyclic structures) forming metaphosphoric acid molecules The simplest such compound is trimetaphosphoric acid or cyclo-triphosphoric acid having the formula H 3 P 3 O 9 Its structure is shown in the illustration Since the ends are condensed its formula has one less H 2 O (water) than tripolyphosphoric acid What are commonly called

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Properties of oxides and hydrates 1) Acid-base properties and trends Acidity Acidity Basicity SnO Sn(OH)2 SnO2 Sn(OH)4 Pb(OH)4 Pb(OH)2 PbO PbO2 Basicity 2) React with acid or base Pb3O4+4HNO3→2Pb(NO3)2+PbO2+2H2O M(OH)2 + 2H+ → M2+ + 2H2O M(OH)4 + 4H+ → M4+ + 4H2O M(OH)2 + 2OH- →M(OH)42M(OH)4 + 2OH- →M(OH)622) α-stannic acid and β-stannic acid α-stannic acid

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The basicity is high for : toppr

The basicity is high for : A Phosphorus acid B Metaphosphoric acid C Ortho phosphoric acid D Hypo phosphorus acid December 30 2019 Derrek Potnuru Answer Option C is correct December 30 2019 Toppr Also available in Class 12 Medical - Oxoacids of PhosphorusClass 12 Engineering - Oxoacids of Phosphorus Solve related Questions Calcium phosphate can be prepared by mixing solution

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Transactions and Proceedings of the Royal Society of New

Summary The isopiestic method of Robinson and Sinclair can be used to investigate the adsorption of water vapour on fibrous materials Adsorption isotherms are described for collagen elastin and certain tanned collagen preparations The approach to equilibrium by adsorption and desorption the influence of temperature and the effect of preliminary treatments of the adsorbent are discussed

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Mixed Chemistry Online Test

This option is correct because methionine amino acid is classified as non polar as it has a straight side chain that possesses a S-methyl thioether (i e C-S-C bonding) at the gama-carbon It is an essential amino acid in all metazoa These are initiated by the polypeptide chain Which one of the following is least basic? NI3 NBr3 NCl3 NF3 None of these Show answer Answer: 4 Explanation

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2 The formula of metaphosphoric acid can be written as (HPO3)n This acid is composed of the phosphorus-oxygen tetrahedra either Suggest the structure of this compound assuming the minimal number of phosphorus atoms in its molecule 3 a) To estimate the relative charge of atoms in PnOk(2k–5n)– anion let us define a special secondary

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