Thickening Agent Adhesive Chemicals CMC-Na Carboxy Methyl Cellulose Sodium / CMC

• CAS No.: 9004-32-4
• Formula: [C6h7o2(Oh)2CH2coona]N
• EINECS: 265-995-8
• Carboxyl No.: Dicarboxylic Acid
• Alkyl No.: Unsaturated Acid
• Appearance: Powder
• Model NO.: CMC-Na Carboxy Methyl Cellulose Sodium / CMC
• Source: Hydrolysis
• Colour: White
• Transport Package: 25kg Drum for CMC
• Specification: CMC Carboxy Methyl Cellulose Sodium
• Trademark: DY CMC
• Origin: China
• HS Code: 391230000
• Production Capacity: 10000tons/Month

Product Description

Thickening Agent Adhesive chemicals CMC-Na Carboxy Methyl Cellulose Sodium / CMC

Product Description

Carboxy Methyl Cellulose(CMC)is synthesized by the alkali-catalyzed reaction of cellulose with chloroacetic acid. The polar (organic acid) carboxyl groups render the cellulose soluble and chemically reactive. The functional properties of Fooding Carboxy Methyl Cellulose(CMC) depend on the degree of substitution of the cellulose structure (i.e., how many of the hydroxyl groups have taken part in the substitution reaction), as well as the chain length of the cellulose backbone structure and the degree of clustering of the carboxymethyl substituents.

Specification

LV-CMC	MV-CMC	HV-CMC
Appearance	White or light yellow powder, freely flowable
Replace degrees(D. S)	0.80 min
Purity	80% min	85% min	95% min
Viscosity 2% (in 2% solution at 25 centigrade)	200-500 mpa.s	600-900 mpa.s	1000-1800 mpa.s
Size(60 head)	80%
Moisture (%)	10% max
PH	7.0-9.0	7.0-9.0	6.5-8.0

 

Category	Item	Index
		Distilled water	Salt water	Saturated salt water
Oil-based mud	Filtration loss,ml	60±10	90±10	100±10
	Apparent viscosity,mpa.s	≤6	≤6	≤10
	PH	8.0±1.0	8.0±1.0	7.5±1.0
HV-CMC	Pulping rate,m³/t	≥200	≥150	≥160
LV-CMC	Filtration loss (10ml)	Dosage,g/l	≤7.0	≤10.0
		Apparent viscosity,mpa.s	≤4.0	≤6.0
MV-CMC	Dosage,g/l	6.0	14.0	3.5
	Apparent viscosity,mpa.s	≥15	≥15	≥15
	Filtration loss,ml	≤9	≤9	≤8

Usage

CMC has a high ability to control water loss. In particular, PAC is a highly effective fluid loss reducer at lower dosages. You can control the loss of water to a higher level. It does not affect other properties of the mud.

The formed mud cake is of good quality, strong and tough.

It has good temperature resistance and excellent salt resistance. Under a certain salt concentration, it still has a good ability to reduce water loss and maintain a certain rheology. Compared to soluble in salt water and soluble in water, the viscosity hardly changes. Particularly suitable for offshore drilling and deep well requirements.

It can well control the rheological properties of the mud. It has good non-Newtonian fluidity.

In addition, CMC is used as a cementing fluid to prevent fluids from entering pores and fractures. It is used as a fracturing fluid to control fluid loss into the well.

Detailed Photos