Sodium hexametaphosphate (SHMP) is widely used in paper production,
textile, dyeing, petroleum, chemistry, metallurgy and construction
materials etc., as water softener, flotation selecting agent,
disperser and high temperature adhesive; In food industry it used
as an additive, nourishing agent, quality improver, PH regulator,
metal ions chelating agent, adhesive and leavening agent etc.It is
white powder, soluble in water but insoluble in organic solvent; It
may form soluble chelates with ions of Ca, Ba, Mg, Cu, Fe etc. and
is a good water treatment chemical.In the food industry, sodium
hexametaphosphate used as food quality improver, pH regulator,
metal ions chelating agent, adhesive agent and expansive agent.
Sodium hexametaphosphate for meat, fish intestinal and ham can
improve holding water, increase knot and prevent fat oxidation;
when for soy sauce it can prevent color, increase sticky, shorten
fermentation period and regulation taste; it can improve out juice
rate and viscosity, inhibit vitamin c decomposition when used in
fruit beverage and cool beverage; this also improve expansion
capacity, increases volume, enhance emulsion role and prevent cream
body damage for ice cream; it prevent dairy products and beverage
from gel precipitation; add it to beer can clarify wine, prevent
pollution; as for beans, canned fruits and vegetables, it stabilize
natural pigment and keep food color; it improves corrosion
resistance when sprayed on the pickled meat.Application in mineral
processing and oil industry, sodium hexametaphosphate is a commonly
used inhibitors of flotation. It mainly used to inhibit silica and
silicate minerals, and carbonate minerals such as calcite,
limestone. In addition, sodium hexametaphosphate also play the role
of dispersant in flotation. In the nickel ore flotation process,
after hauling mud cover on the surface of pentlandite, this is very
negative to the flotation process. So, add a certain amount of this
product is very favorable to pentlandite flotation recovery.
Because the sodium hexametaphosphate makes flotation pulp disperse
and reduce the surface covering of the serpentine in pentlandite.In
the oil industry, Sodium Hexametaphosphate is applied as a mud
drilling additive which can avoid polyvalent metal ions
precipitate, improve the ability of mud salt resistance and reduce
mud water loss.Sodium Hexametaphosphate applied to fiber industry
can inhibit the generation of metal SOAP in the refining process;
prevent the decomposition of hydrogen peroxide in the bleaching
process; it can prevent color changes in dyeing; in paper making,
the mix of sodium hexametaphosphate and sulfonation of benzene
formaldehyde can be used to steel paper coating dispersant; etc.
Item Index First ClassQualifiedTotal content of
phosphate (calculated by P2O5),
% ≥68.0 65.0
Content of inactive
phosphate (calculated by P2O5), % ≤ 7.5 10.0
Water insoluble matter content,
% ≤ 0.04 0.10 Iron content (Fe) ,
% ≤0.03 0.10 pH value (10g/L)5.8-7.0
SolubilityQualified AppearanceWhite powder, granula or
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