Carboxymethyl cellulose (CMC) or cellulose gum is a
cellulose derivative with carboxymethyl group in its chain. CMC is a
physiologically inert, chemically stable, odorless and tasteless substance
which safe for health and environment. The other properties of CMC include high
viscosity, non-toxic nature, and hypoallergenic. Major raw materials used in
the manufacture of carboxymethyl cellulose (CMC) include plant-derived
cellulose, caustic soda, and monochloroacetic acid. CMC is widely used as
thickener, stabilizer, binder and dispersant in variety of applications such as
food and beverages, pharmaceutical and cosmetics, detergents, oil and gas,
paper processing and others.
Polyanionic cellulose (Polyanionic cellulose) referred to as
PAC, is from natural cellulose by chemical modification and the obtained
water-soluble derivatives of cellulose ethers, is an important water-soluble
cellulose ether, white or slightly yellow powder, non-toxic, tasteless, it can
be dissolved in water, have good heat stability, and salt-tolerance,
anti-bacterial and strong. The product slurry prepared with a good drop of
fluid loss, and suppression, of a higher temperature.
Widely used in Oil drilling fluid control additives,
especially in salt water wells and offshore oil drilling.
It is a combined filtration controller and minimal
viscosifier in fresh and salt water based drilling systems. It is ideal in low
solid mud, designed for fast penetration
