Monday, April 18, 2011

Carboxymethyl Cellulose (CMC)

carboxymethyl cellulose
HS code: 39123900
carboxymethyl cellulose (CMC) is a highly pure and fine cellulose ether, made from cotton linter. The appearance
of the product is white powder. Its water solution shows high transparency,
good rheological property and thixotropy.
Oil drilling grade CMC can be used as water-soluble gel for drilling fluids, and
can form artesian well liquor.
Features:
1) It has good water-loss controlling ability, especially PAC is highly effective
drop filter-loss agent; even added at low quantity, it can control water loss
at very high level, but does not affect slurry's other characteristics
2) It can form high quality slurry cake which is strong and flexible
3) It has good temperature resistance and superior anti-salt character; under
certain salt density, it can remain good water-loss capability and certain
rheology, so the viscosity in salt solution is the same as in water, which is
specially suitable for sea misering and deep well
4) It effectively controls the rheology of slurry with good non-newtonian fluid
performance
5) Moreover, CMC can be used as well fixing liquor to prevent fluid entering
terrane or crack, and also can be used as pressing liquor to control the
loss of fluid into oil well structure
As a leading supplier of CMC in China, we also can supply toothpaste grade CMC, food
additive grade CMC, ceramics grade CMC as per customers' requirements.

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