Magnesium hypochlorite

Cm ORINE OXYGEN ACIDS AND SALTS - DICm.ORINEMONOXIDE,fiYPOCm.OROUSACID,AND fiYPOCm.ORITES] (Vol 5) Magnesium hypochlorite, dibasic [11073-21-5]... 

Dibasic Magnesium Hypochlorite. This salt Mg(OCl)2 2Mg(OH)2, [11073-21-5], is safer than calcium hypochlorite because of its higher... 

Dibasic Magnesium Hypochlorite. Basic magnesium hypochlorite [64131 -05-1], av CI2 40-45%, has been known for over 100 years and was once an item of commerce. Dibasic magnesium hypochlorite was first synthesized in 1969 by addition of either a NaOCl or Ca(OCl)2 solution to an excess of aqueous MgCl2 or Mg(N03)2 (225). SoHd hydrates or slurries can also be employed as reactants (226). The reaction proceeds as follows ... 

A competing side reaction is chlorate formation, 3 CIO — 2 Cl + CIO3, which decreases the yields of dibasic magnesium hypochlorite [11073-21-5] and of evolved chlorine. The difficult to filter slurries can be dried with Httle loss to a white, powdery soHd with av CI2 in the range of 52—59%. The yields of isolated product and recovered chlorine are typically about 40% each, while product solubiUty loss and chlorate formation amount to about 10% each. 

Dibasic magnesium hypochlorite is more thermally stable than neutral or dibasic calcium hypochlorite. In addition, its decomposition, which starts at - 325° C, is endothermic rather than exothermic as in the case of the Ca compounds. 

By contrast, decomposition of dibasic calcium hypochlorite begins at 265° C to give Ca(OH)2, CaCl, and O2. Dibasic magnesium hypochlorite exhibits a high degree of stabiUty to moisture as shown by the following relative available chlorine losses at 24°C and 80% rh for 60 d Mg(OCl)2 2Mg(OH)2 2%,... 

Dibasic magnesium hypochlorite can be used as a toilet bowl cleaner (227—229), in laundry and textile bleaches (230,231), and in scouring cleansers (232,233). 

After treatment of the Grignard reagent with chlorine, the solid which separated exploded when shaken [1], This solid was not seen later, using either diethyl ether or THF as solvent [2], (The explosive solid could have been magnesium hypochlorite if moisture were present in the chlorine.)... 

Calcium hypochlorite, 3924 Lead(II) hypochlorite, 4098 Magnesium hypochlorite, 4082 Sodium hypochlorite, 4037 See Chlorine Nitrogen compounds... 

In addition to soln. of chloride of lime—lime bleach liquor—bleaching liquids with magnesium, zinc, or aluminium hypochlorites as the active agents have also been made and special virtues claimed for their use. For example, if magnesium sulphate be added to a soln. of bleaching powder, calcium sulphate is precipitated and a soln.—magnesia bleach liquor—of magnesium hypochlorite can be decanted off similarly with zinc hypochlorite—zinc bleach liquor and with aluminium hypochlorite—alumina bleach liquor, or Wilson s bleach liquor. 

Another process for improving the bromination efficiency in rubber bromination processes is to conduct the reaction in the presence of elemental bromine and an aqueous solution of an organic azo compound such as 2,2 -azobisisobutyronitrile and sodium hypochlorite, potassium hypochlorite, or magnesium hypochlorite (42,43). 

Othei hypochlorites include calcium hypochlorite, bleach liquor, bleaching powder and tropical bleach, dibasic magnesium hypochlorite, lithium hypochlorite, chlorinated tnsodium phosphate, and hypochlorous acid. 

Calcium hypochlorite, 3918 Lead(II) hypochlorite, 4092 Magnesium hypochlorite, 4076 Sodium hypochlorite, 4031 See Chlorine Nitrogen compounds See BLEACHING POWDER... 

---