Ammonium Heptamolybdate, Pure
Ammonium Docosaoxoheptamolybdate(6–), Ammonium Molybdate, Ammonium Paramolybdate
CAS Number 12027-67-7
EC Number 234-320-9
Chemical formula (NH4)6Mo7O24
Solubility in water 653g/l (20 °C)
Molybdenum is an activator of enzymes responsible for nitrogen transformation in cells; it reduces nitrogen to the form of ammonia. Molybdenum also stimulates production of enzymes responsible for absorption of other microelements. Plants absorb molybdenum in the form of oxidised anion Mo2O; it can be oxidised to -5 or -6 which suggests that this element is involved in nitric processes.
Occurance of this molybdenum in plants is the lowest of all microelements and the fact that it participates in secondary cycling of minerals shows why this element’s deficiencies are seldom. All types of water have some level of molybdenum, it also occurs as a side product (is precipitated) in the production of acids used to reduce pH in aquarium water. Noticeable deficits are following: unnaturally bent leaves, nitrate chlorosis, discolouring and deformation of young leaves and of growing points.
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