Carboxymethyl Cellulose Sodium

Carboxymethyl Cellulose Sodium
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Product Description

CAS No.: 9000-11-7

Molecular Formula:    [C6H7O2(OH)2CH2COONa]n 

Structural Formula:

Property:

CMC 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, which is tasteless, smelless, mould-proof, non-toxic, non-flammable and easily dissolved in water to become transparent viscose solution. Its 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.

 

Specification:

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%

CMC

≥80.0%

≥85.0%

≥95.0%

Substitution degree

≥0.80

≥0.65

≥0.8

pH

7.0-9.0

7.0-9.0

6.5-8.0

 

Type

Item

Typical measured values

Distilled water

Brine

Saturated brine

Base mud

Filtration loss,

60±10ml

90±10ml

100±10ml

Apparent viscosity,

≤6mPa·s

≤6mPa·s

≤10mPa·s

pH

8.0±1.0

8.0±1.0

7.5±1.0

HV-CMC

Mud generating capacity

≥200m3/t

≥150m3/t

≥160m3/t

LV-CMC

Filtration loss=10ml

Addition rate,

 

≤7.0g/l

≤10.0g/l

Apparent viscosity

 

≤4.0mPa·s

≤6.0 mPa·s

MV-CMC

Addition rate

6.0g/l

14.0g/l

3.5 g/l

Apparent viscosity

≥15mPa.s

≥15mPa.s

≥15mPa.s

Filtration loss

≤9ml

≤9ml

≤8ml

 

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

 

Type

 Specification

CMC-HVT

Viscometer

600r/min

Distilled water

≥30.0

40g/dm3 brine

≥30.0

Saturated brine

≥30.0

Filtration loss

≤10.0ml

CMC-LVT

Viscometer 600r/min

≤90.0

Filtration loss (ml)

≤10.0

Note:We could arrange product according to customer's specification

 

Usage:

CMC Oil Drilling Grade 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. CMC 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

 

Carboxymethyl Cellulose Sodium 1

Member Information

SHANDONG IRO Oil Drilling Chemical Co., Ltd
Country/Region:Shan Dong - China
Business Nature:Manufacturer
Phone:13626398160
Contact:max ma (marketing manager)
Last Online:27 Aug, 2012