10343-62-1 Usage
Description
Metaphosphoric acid, also known as phosphenic acid, is an anhydrous version of orthophosphoric acid with phosphorus in the formal oxidation state of +5. It is characterized by its transparent, glass-like solid or soft silky masses and is hygroscopic, meaning it has the ability to absorb water from its surroundings. Metaphosphoric acid can form various structures, such as rings, chains, or branched structures through condensation, yielding water as each acid unit is added. It is sometimes used as a wateror moisture-absorbing reagent.
Uses
Used in Chemical Industry:
Metaphosphoric acid is used as a water-absorbing reagent for various applications in the chemical industry. Its hygroscopic nature allows it to effectively remove moisture from substances, making it a valuable component in the production of certain chemicals and compounds.
Used in Food Industry:
In the food industry, metaphosphoric acid is used as a preservative and acidulant. Its ability to absorb water helps to extend the shelf life of certain products by preventing the growth of microorganisms.
Used in Pharmaceutical Industry:
Metaphosphoric acid is used as a reagent in the pharmaceutical industry for the synthesis of various drugs and pharmaceutical compounds. Its unique chemical properties make it a useful component in the development of new medications.
Used in Analytical Chemistry:
In analytical chemistry, metaphosphoric acid is employed as a stabilizing agent for the analysis of certain substances, such as proteins and amino acids. Its ability to absorb water and form various structures makes it a valuable tool in the analysis and identification of different compounds.
Used in Research and Development:
Metaphosphoric acid is used as a research compound in the development of new materials and technologies. Its unique properties and ability to form various structures make it an interesting subject for scientific investigation and potential applications in various fields.
Check Digit Verification of cas no
The CAS Registry Mumber 10343-62-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,3,4 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 10343-62:
(7*1)+(6*0)+(5*3)+(4*4)+(3*3)+(2*6)+(1*2)=61
61 % 10 = 1
So 10343-62-1 is a valid CAS Registry Number.
InChI:InChI=1/C8H16O4.H3O4P/c1-5-9-6(2)11-8(4)12-7(3)10-5;1-5(2,3)4/h5-8H,1-4H3;(H3,1,2,3,4)
10343-62-1Relevant articles and documents
Phosphite Radicals and Their Reactions. Examples of Redox, Substitution, and Addition Reactions
Schaefer, K.,Asmus, K.-D.
, p. 2156 - 2160 (1980)
Phosphite radicals HPO3(-) and PO3(2-), which exist in an acid-base equilibrium with pK = 5.75, are shown to take part in various types of reactions.In the absence of scavengers, they disappear mainly by second-order disproportionation and combination; a first-order contribution to the decay is also indicated.HPO3(-) and PO3(2-) are good reductants toward electron acceptors such as tetranitromethane.In this reactions phosphate and C(NO2)3(-) are formed.Phosphite radicals can, however, also act as good oxidants, e.g., toward thiols and thiolate ions.These reactions lead to the formation of RS. radicals which were identified either directly, as in the case of penicillamine, through the optical absorption of PenS. or more indirectly through equilibration of RS. with RS(-) to the optically absorbing RSSR.(-) disulfide radical anion.A homolytic substitution reaction (SH2) occurs in the reaction of the phosphite radicals with aliphatic disulfides, yielding RS. radicals and phosphate thioester RSPO3(2-).Lipoic acid, as an example of a cyclic disulfide, is reduced to the corresponding RSSR.(-) radical anion and also undergoes the SH2 reaction with about equal probability.An addition reaction is observed between phosphite radicals and molecular oxygen.The resulting peroxo phosphate radicals establish an acid-base equilibrium HPO5(-). PO5(2-). + H(+) with a pK = 3.4.Absolute rate constants were determined for all reactions discussed.
Polymerization catalyst and deodorizing agent and process of use
-
, (2008/06/13)
Calcium silicate treated with an acid can be used as a polymerization catalyst or as a deodorizing agent. The acid is sulfuric acid, phosphoric acid or nitric acid.
