calcined magnesite

calcined magnesite

the mineral magnesite which has been reduced to a powder by heating, i.e. calcined. It is used as a dietary supplement for cattle and sheep to prevent hypomagnesemia. Used for topdressing pasture with a similar objective. Contains about 90% magnesium oxide.
References in periodicals archive ?
Tenders are invited for Supply of Pre-despatch inspection and supply of calcined magnesite (mgo), qty: 10 metric ton.
Pasture dusting with calcined magnesite is even less reliable, while magnesium boluses can be effective but tend to be rather costly to use.
Two of these trials on pumice soils in Kaingaroa Forest have shown that calcined magnesite (calmag) applied as 2-5 mm chips at a rate of 150 kg Mg/ha is very effective in increasing soil exchangeable Mg concentration within 2 years of application (Mitchell et al.
1), have shown that the rate of dissolution was in the sequence: Epsom salts [is greater than or equal to] fine calcined magnesite [is greater than] coarse calcined magnesite, coarse granmag (partially acidulated and granulated calcined magnesite), fine dolomite [is greater than] fused magnesium phosphate (Loganathan et al.
Calcined magnesite (calmag, MgO) is made by calcining magnesite (Mg[CO.
radiata the rates of Mg fertiliser dissolution within 27 months follow the sequence: Epsom salts [is greater than] calcined magnesite (1-2 mm) [is greater than] granmag [is greater than] calcined magnesite (2-4 mm) [is greater than] forestry grade dolomite (0.
Heming SD, Hollis JF (1995) Magnesium availability from kieserite and calcined magnesite on five soils of different pH.
Magnesium Production by Vacuum Aluminothemic Reduction of A Mixture of Calcined Dolomite and Calcined Magnesite (W.