Product Name: Sodium Carboxymethylcellulose (CMC)
1. CAS No.: 9004-32-4
2. Molecular formular: [C6H7O2(OH)2CH2COONa]n
3. Packing: 25kg bags and 18mt per 20’/FCL
4. Specification:
|
Inspection Item
|
Food
|
Detergent
|
Textile
|
Oil
|
|
Viscosity(1%soln25mPa.s/2%soln25mPa.s)
|
75-6000
|
5-300
|
300-1200
|
1000-3000
|
|
Degree of Substitution(%)≥
|
0.65-0.85
|
0.5-0.8
|
0.85
|
0.65-0.85
|
|
Purity (%)≥
|
95-99
|
65
|
90
|
95-99
|
|
PH value
|
6.0-8.5
|
7.0-11.0
|
6.0-7.5
|
6.0-8.5
|
|
Chloride (%) ≤
|
1.8
|
1.8
|
7.0 (NaCl)
|
1.8
|
|
Moisture (%) ≤
|
7
|
10 7
|
7
|
7
|
|
Heavy metal as Pb (%) ≤
|
0.002
|
0.002
|
0.002
|
0.002
|
|
Fe(%)≤
|
0.03
|
0.03
|
0.03
|
0.03
|
|
As (%) ≤
|
0.002
|
0.0002
|
0.002
|
0.002
|
|
Fresh water ≥
|
-
|
-
|
-
|
350-500
|
|
Sea water ≤
|
-
|
-
|
-
|
150-220
|
|
Saturation salt solution ≤
|
-
|
-
|
-
|
200-300
|
5.Property:CMC is a polyanionic cellulose ether. It has good solubility in both hot and cold water. It is used in drilling mud; in detergents as a soil-suspending agent; in resin emulsion paints, adhesives, printing inks, textile sizes, as stabilizer in foods, as protective colloid in general, as pharmaceutic aid.
6.Usage:
Oil Drilling Grade
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.
Food Grade
CMC as acidic beverage additive: Stabilizes yogurt and prevents phase separation and settling; Improves mouth feel; - Allows longer shelf life.