A shipping method which reduces the potential hazards during shipment of manganese dioxide. The manganese dioxide is transported in suspension in a liquid contained in a container. The manganese dioxide is maintained in suspension by continuously agitating the manganese dioxide slurry in the container during shipment.

A hermetically sealed alkaline cell having an anode such as a zinc anode, an aqueous alkaline electrolyte solution and a manganese dioxide cathode in which the cathode is composed of a mixture of a minor amount of highly porous manganese dioxide and a major amount of low porosity manganese dioxide and wherein said mixture provides ion diffusion paths through the cathode.

The invention provides a magnesium manganese alloy suitable for use in the production of a pellet 10 for administration to a ruminant by dposition in its rumenoreticular sac. A typical pellet 10 comprises a magnesium alloy tube 12 enclosing a degradable core formed of plurality of tablets 14, 16. The magnesium alloy used in the construction comprises at least 90% by weight of magnesium, uyp to 1% zinc and up to 2% of manganese. Preferably the alloy may further include aluminium, silicon or zirco...

An alkaline battery having excellent discharge characteristics and higher discharge capacity with an increase in its internal resistance being suppressed is disclosed. The alkaline battery has a positive electrode active material which comprises primarily manganese dioxide and electroconductive carbon material. The electroconductive carbon material comprises expanded graphite particles having an average particle size in the range from 0.5 to 15 .mu.m, and the content of the expanded graphite par...

For the purpose of improving the initial magnetic permeability of manganese-zinc system ferrite in the high-frequency band of 10 kHz to 500 kHz, a manganese-zinc system ferrite comprising 50-56 mol % of Fe.sub.2 O.sub.3, 22-39 mol % of MnO, and 8-25 mol % of ZnO is fired after adding thereto up to 800 ppm calculated as Bi.sub.2 O.sub.3 of a bismuth oxide component and up to 1,200 ppm calculated as MoO.sub.3 of a molybdenum oxide component in admixture. It has an average grain diameter of from 5 ...

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield manganese dioxide of varying density and surface area. The manganese dio...

A source for vapor depositing manganese onto a substrate in a vacuum. The source is formed by a chain of metallic beads fused around a wire. The material of the wire has a high recrystallization temperature, the beads consist of an alloy of manganese and one or more other substances from the group of metals and metalloids having a saturated vapor pressure much lower than that of manganese, and the fusion temperature of the alloy is lower than that of pure manganese and lower than the recrystalli...

This invention relates to light-colored manganese carboxylates and to a process for preparing manganese carboxylates. The manganese carboxylate salts are derived from (a) at least one carboxylic acid containing at least about six carbon atoms and characterized by the Formula (I) ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each independently hydrogen or alkyl groups, and R.sup.4 is an aliphatic hydrocarbylene group or (b) a carboxylic acid mixture comprising at least one carboxylic acid con...

The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the proc...

The invention relates to a process for the dry incorporation of manganese ions on the external reactive sites of Zn-ZSM-5 or Zn-ZSM-11 pentasil which comprises mixing a Zn-ZSM-5 or Zn-ZSM-11 zeolite with bentonite, impregnating the dry mixture with a minimum amount of a solution of a manganese salt thereby to form a malleable paste and extruding said paste under pressure whereby the manganese ions are affixed to the surface reactive sites of the treated zeolite and to the zeolite catalyst thus o...