37267-86-0 Usage
Physical Properties
Glass-like colorless solid; soft and transparent; deliquesces; sublimes at red heat; dissolves slowly in cold water, decomposing to phosphoric acid; soluble in alcohol.
Preparation
Metaphosphoric acid is obtained as a polymeric glassy solid by prolonged heating of phosphoric acid. Either phosphoric acid, H3PO4, or pyrophosphoric acid, H4P2O7, when heated above 300°C, on cooling yields the transparent glassy mass of composition (HPO3)n.
Metaphosphoric acid also is obtained from partial hydration of phosphorus pentoxide by dissolving it in cold water.
Uses
Different sources of media describe the Uses of 37267-86-0 differently. You can refer to the following data:
1. An inorganic reagent used for research purposes
2. In dentistry for making zinc oxyphosphate cement; as reagent in chemical analysis.
3. Metaphosphoric acid is used as a dehydrating agent. Its derivative, sodium hexametaphosphate is used as a sequestrant and a food additive. It is also used as phosphorylating agent, analytical reagent and in dental cements.
General Description
meta-Phosphoric acid is a monobasic acid.
Check Digit Verification of cas no
The CAS Registry Mumber 37267-86-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,2,6 and 7 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 37267-86:
(7*3)+(6*7)+(5*2)+(4*6)+(3*7)+(2*8)+(1*6)=140
140 % 10 = 0
So 37267-86-0 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)