Carboxymethyl Cellulose (CMC) Powder


Carboxymethyl cellulose (CMC) is a white and flowing fine powder. It is a cellulose derivative obtained by chemical modification the natural cellulose. Carboxymethyl cellulose is one of the most important water-soluble polymers with many advantages that other natural or synthetic glues do not have.

Carboxymethyl cellulose powder is tasteless, smells mold-proof, non-toxic, non-flammable, and easily dissolved in water.

Carboxymethyl cellulose solution is a transparent viscose solution. This solution has good thickening, adhering, emulsifying, and stabilizing properties. Membrane forming, moisture-holding, shape-holding, dispersing, and anti-enzyme.

Carboxymethyl cellulose solution can be mixed with dissolvable animal glues, glycerin, sorbitol, Arabic gum, pectin, xanthic gum, and dissolvable starch.

CAS No.:


Molecular Formula:


Structure Formula:

carboxymethyl cellulose structure formula


Physical specification of CMC for Oil drilling liquids & Oil drilling liquids properties (According to SY5093-92).

AppearanceWhite or light yellow powder, freely flowable
Water, %10 Max.10 Max.10 Max.
CMC, %80.0 Min.85.0 Min.95.0 Min.
Substitution degree, %0.80 Min.0.65 Min.0.8 Min.
pH Value7.0-9.07.0-9.06.5-8.0
TypeItemTypical measured values
Distilled waterBrineSaturated brine
Base mudFiltration loss, ml60±1090±10100±10
Apparent viscosity, mPa·s6 Max.6 Max.10 Max.
HV-CMCMud generating capacity, m3/t200 Min.150 Min.160 Min.
LV-CMCFiltration loss = 10mlAddition rate, g/l7.0 Max.10.0 Max.
Apparent viscosity, mPa·s4.0 Max.6.0 Max.
MV-CMCAddition rate, g/l6.014.03.5
Apparent viscosity,mPa·s15 Min.15 Min.15 Min.
Filtration loss, ml9 Max.9 Max.9 Max.

Technical specification of CMC for oil drilling liquids (According to GB/T5005-2001 or API).

CMC-HVTViscometer, 600r/minDistilled water30.0 Min.
40g/dm3 brine30.0 Min.
Saturated brine30.0 Min.
Filtration Loss, ml10.0 Max.
CMC-LVTViscometer, 600r/min90.0 Max.
Filtration Loss, ml10.0 Max.
Note: We could arrange product according to customer’s specification


CMC oil drilling grade is used in fracturing, drilling, and well-cementing fluid as a fluid loss controller and tackifier. Carboxymethyl cellulose can protect the shaft wall and prevent mud loss, thus enhancing recovery efficiency. CMC has the following characteristics.

  • Excellent water retention even at low concentrations.
  • Excellent thickening effect.
  • Good resistance to salt and temperature change.
  • It Imparts excellent rheological properties.


Packed in multiple paper bags or fiber drums (25KG), or as per customer requirement, keep dry.

25kg paper bags fiber drum


CMC chemical, CM cellulose, CMC polymer, carboxy methylated cellulose.


If you want to get the latest CMC price and CMC DBNPA SDS/MSDS, contact us.