Carboxymethyl cellulose sodium salt (CMC)

　　Carboxymethyl cellulose sodium salt(CMC)is an anionic polyelectrolyte prepared by reacting sodium chloroacetate with alkaline cellulose.It is divided into high viscosity(HV-CMC),low viscosity(LV-CMC),and alkaline medium viscosity.The appearance is white or grayish white powder,non-toxic,soluble in cold or hot water,and the aqueous solution is a viscous colloid.

　　Performance

　　Sodium carboxymethyl cellulose(Na CMC or CMC)is a long-chain polymer compound composed of many glucose units,belonging to the anionic cellulose ether class.It appears as a white or slightly yellow flocculent fiber powder or white powder,odorless,and non-toxic;Easily soluble in cold or hot water,forming a transparent solution with a certain viscosity.The solution is neutral or slightly alkaline and insoluble in organic solvents such as ethanol,ether,isopropanol,acetone,etc.It is soluble in ethanol or acetone solutions containing 60%water.

　　Solid CMC is relatively stable to light and room temperature,and can be stored for a long time in a dry environment.

　　CMC has hygroscopic properties,and its degree of hygroscopicity is related to atmospheric temperature and relative humidity.When it reaches equilibrium,it no longer absorbs moisture.

　　Main features

　　①Good chemical stability,less prone to corrosion and deterioration

　　②Harmless to physiological safety

　　③Has suspension and stable emulsification properties

　　④Good adhesion and salt resistance

　　⑤The formed film is smooth,tough,and transparent

　　⑥Good stability for oil and organic solvents

　　Product application

　　Widely used in fields such as petroleum,food,textiles,medicine,papermaking,and daily chemical industry.Especially in oilfield chemistry,carboxymethyl cellulose can be used as a viscosity increasing,stabilizing,and filtration loss reducing agent for drilling fluids,a filtration loss reducing agent for oil well cement,and a thickening agent for acidification and fracturing.

　　Packaging and storage

　　This product is packaged in"three in one"bags,lined with polyethylene film bags,with a net weight of 25kg per bag;

　　Store in a cool,dry,and ventilated place;

　　Avoid contact with eyes,skin,and clothing,otherwise rinse with plenty of water;

　　Stay away from sources of fire.