Origin	China
Model Number	CAS NO 9000-11-7
Brand Name	Carboxy Methyl Cellulose Sodium

 CAS NO.: 9000-11-7 
Molecular Formula: [C6H7O2(OH)2CH2COONa]n 
 
Property: 
Carboxymethyl Cellulose Sodium (CMC-Na) is a cellulose derivative obtained by chemically modificating the
natural cellulose. It is one of the most important water soluble polymers with many advantages that other
natural or synthetic glues do not have. 
 
CMC is white and flowing fine powder. It is tasteless, smelless, mould-proof, non-toxic, non-flammable and
easily dissolved in water to become transparent viscose solution. 
 
CMC solution has good properties of thickening, adhering, emulsifying, and stabilizing. Membrane forming,
moisture-holding, shape-holding, dispersing and anti-enzyme. The solution of CMC can be mixed with
dissolvable animal glues, glycerin, sobbitol, Arabic gum, pectin, xanthic gum and dissolvable starch. 
 
Specifications: 
Check the tables at the end. 
Note: The specs can be adjusted as required. 
 
Usage: 
Oil drilling grade CMC used in fracturing fluid, drilling fluid and well cementing fluid as fluid loss controller
and tackifier. It can protect the shaft wall and prevent mud loss thus enhance recovery efficiency. It has the
following characteristics: 
 
- Excellent water retention even at low concentration. 
- Excellent thickening effect. 
- Good resistance to salt and temperature change. 
- Imparts excellent rheological property. 
 
Package and Storage: 
Packed in multiply paper bags or fiber drums (25KG), or as per customer requirement; Keep dry 
 
Key Words: 
Sodium CarboxyMethyl Cellulose, CMC, CMC-Na, CM-Cellulose, Carboxymethyl Cellulosec Carboxymethyl
cellulose Ether, 
 
 
 PHYSICAL SPECIFICATION OF CMC FOR OIL DRILLING LIQUIDS & OIL DRILLING LIQUIDS PROPERTIES
(ACCORDING TO SY5093-92)
 
 
LV-CMC 
 
MV-CMC 
 
HV-CMC 
 
Appearance 
 
White or light yellow powder, freely flowable. 
 
Water,% 
 
10 max 
 
CMC,% 
 
80.0 min 
 
85.0 min 
 
95.0 min 
 
Substitution degree,% 
 
0.80 min  
 
0.65 min 
 
0.8 min  
 
PH 
 
7.0-9.0 
 
7.0-9.0 
 
6.5-8.0 
 
 
 
 
 
Typical measured values 
 
Distilled water 
 
Brine 
 
Saturated brine 
 
Base mud 
 
Filtration loss, ml 
 
60±10 
 
90±10 
 
100±10 
 
Apparent viscosity, mPa·s 
 
 6 max 
 
 6 max  
 
10 max 
 
PH 
 
8.0±1.0 
 
8.0±1.0 
 
7.5±1.0 
 
HV-CMC 
 
Mud generating capacity, m 3 /t 
 
 200 min  
 
 150 min 
 
 160 min  
 
LV-CMC 
 
Filtration loss = 10ml 
 
Addition rate, g/l 
 
  
 
 7.0 max 
 
 10.0 max 
 
Apparent viscositymPa·s 
 
  
 
 4.0 max  
 
 6.0 max