Sodium Hexa
Meta Phosphate (SHMP)
We offer high grade Sodium Hexametaphosphate to our clients. The
Sodium Hexametaphosphate is of a high quality (and purity), and can
be obtained from us in custom requirements at reasonable prices.
Sodium Hexametaphosphate is widely used in the oil sector, paper
making, textile and dyeing industries, petrochemical, tanning
industries and to soften water. The product is shipped promptly
without any delays.
Sodium hexametaphosphate(SHMP) is a hexamer of composition
(NaPO3)6.Sodium hexametaphosphate of commerce is typically a mixture
of polymeric metaphosphates, of which the hexamer is one, and is
usually the compound referred to by this name. It is more correctly
termed sodium polymetaphosphate. It is prepared by melting
monosodium orthophosphate, followed by rapid cooling. SHMP
hydrolyzes in aqueous solution, particularly under acidic
conditions, to sodium trimetaphosphate and sodium orthophosphate.
SHMP is used as a sequestrant and has applications within a
wide variety of industries, including as a food additive in which it
is used under the E number E452i. Sodium carbonate is sometimes
added to SHMP to raise the pH to 8.0-8.6, which produces a number of
SHMP products used for water softening and detergents. Also used as
a dispersing agent to break down clay and other soil types.
One of the lesser-known uses for sodium hexametaphosphate is
as a deflocculant in the making of terra sigillata, a ceramic
technique using a fine particled slip. The sodium hexametaphosphate
causes the heavy particles in the slip to drop to the bottom
allowing the fine particles to be siphoned off and applied to a
green ware ceramic surface.
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