The metaphosphoric acids can be formulated as H 2 O�P 2 O 5.
2.
Metaphosphates can be considered as salts of the corresponding metaphosphoric acids ( H " n"
3.
Metaphosphoric acid is a singly anhydrous version of orthophosphoic acid and is sometimes used as a water-or moisture-absorbing reagent.
4.
When these metaphosphoric acids lose their hydrogens as H +, cyclic anions called "'metaphosphates "'are formed.
5.
The phosphoric acid units can be bonded together in rings ( cyclic structures ) forming "'metaphosphoric acid "'molecules.
6.
For example, phosphoric acid, H 3 PO 4, has sometimes been called " orthophosphoric acid ", in order to distinguish it from metaphosphoric acid, HPO 3.
7.
When an average of one molecule of water per phosphoric unit has been driven off, the resulting substance is a glassy solid having an empirical formula of "'HPO 3 "'and is called "'metaphosphoric acid " '.
8.
He worked out methods to determine the relative amounts of leucine and tyrosine, which are produced during the degradation of several substances of this class, and was the first ( 1860 ) to understand the nature of glycide and to suggest that this substance is related to glycerol in the same way as is metaphosphoric acid to orthophosphoric acid.
परिभाषा
a glassy solid acid ([HPO3]n) often used as a dehydrating agent
मोबाइल