- Sodium Carboxymethyl
Cellulose (CMC) is a kind of white grain and fibrous powder which are
nontoxic and easy to absorb water. It has good water solubility,
stickiness, emulsification, diffusibility, enzyme resistance and thermal
stability. The transparency of its solution gets corresponding
improvement with the increase of substitution degree. The water
solubility of CMC presents neutral or light alkalescence. It will
precipitate when meeting the metallic ion with more than
bivalence.
- CMC was developed in
Germany during World War I as a substitute for gelatin. During the
1930s, CMC was used to eliminate redeposition of soil
on fabric
during washing and rinsing. There was also interest in the production of
CMC after the war. Kalle and Co. in Wiesbaden-Biebrich
produced it in
the late 1930s. Herculus then developed a commercial process in
1943.
- The product is the
sodium salt of a carboxymethyl ether of cellulose, which has been
partially hydrolyzed by enzymatic treatment with food-grade Trichoderma
reesei cellulase. The total content of mono- and disaccharides does not
exceed about 7.5%. The functional properties of 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), and also
on the chain length of the cellulose backbone structure.
- CMC is an anionic,
biodegradable and linear polymer cellulose ether. It is one of the most
versatile of water-soluble hydrocolloids and has a number of important
properties including solubility, rheology, adsorption on surfaces, etc.
Apart from these, viscosity and the degree of substitution (DS) are the
two major properties of CMC that determine its functionality.
- CMC is more tolerant to
the presence of ethanol than most other food gums. This makes cellulose
gum useful for cordials and other low alcohol content beverages which
require optical transparency. CMC will give a synergistic viscosity
increase with other hydrocolloids such as guar or locust bean gum. The
availability of cellulose gum in different viscosity grades, particle
sizes, special rheological grades, and combinations thereof permits
tailor-made application of CMC to many different food systems.
- CMC is used in food
science as a viscosity modifier or thickener, and to stabilize
emulsions, for instance in ice cream. It has E number E466. It is also a
constituent of many non-food products, such as K-Y Jelly, toothpaste,
laxatives, diet pills, water-based paints, detergents, and various paper
products. They have high viscosity, are not toxic, and are generally
non-allergenic. CMC is used as a lubricant in non-volatile eye drops
(artificial tears). Sometimes it is methylcellulose (MC) which is used,
but its non-polar methyl groups (-CH3) do not add any solubility or
chemical reactivity to the base cellulose.
- Cellulose from waste of
mulberry paper was modified to be carboxy methyl cellulose (CMC) by
adding isopropyl alcohol and sodium hydroxide (NaOH). Tensile strength
and percent elongation of CMC films increased as NaOH concentration in
CMC synthesis increased. However, when the level of NaOH concentration
was 60%, film could not be formed due to CMC solution had too low
viscosity. Therefore, the best level of NaOH concentration in CMC
synthesis was 50% NaOH which provided the best mechanical
properties.
- Demand for purified CMC
is affected by demand from purchasers who use the product for a variety
of end uses. Fluctuations in the consumption of purified CMC were
affected primarily by fluctuations in apparent consumption of purified
CMC by oilfield purchasers. The annual demand for CMC in Russia and
other CIC countries is about 60-65K mt, while Russia consumes 6K mt/y.
Currently, Russia features 13 facilities manufacturing Na-CMC of various
grades.
- Aqualon is the only
U.S. producer of purified CMC, and the firm accounted for all known U.S.
production of the purified CMC in 2003. Major purchasers of purified CMC
consist of firms in the food, personal care, cosmetics and
pharmaceuticals, paper and board, and oilfield industries. Prices for
purified CMC vary by specification and end use. Generally, purified CMC
for food and personal care applications command a higher price when
compared to purified CMC for paper and oilfield applications.
- Aqualon had the ability
to respond to changes in demand with changes in the quantity of
shipments of U.S.-produced purified CMC to the U.S. market during much
of January 2001-March 2004. Noviant Finland sold its purified CMC
principally to third-country export markets, secondarily to its home
market, and the remainder to the U.S. market during January 2001-March
2004; this shipment pattern was projected to continue in 2004 and
2005.
|
General
Information
- Sodium Carboxymethyl
Cellulose
- Characteristics and
Analysis
- Description of Sodium
Carboxymethyl Cellulose
- Sodium Carboxymethyl
Cellulose, Enzymatically Hydrolyzed
Production
-
Cellulase
Production by Thermomonospora curvata Isolated from Municipal Solid
Waste Compost
-
Carboxymethyl
Cellulase and Cellobiase Production by Clostridium acetobutylicum in an
Industrial Fermentation Medium
- Production of carboxy
methyl cellulose films from waste of mulberry paper
- Production of
Carboxymethyl Cellulose From Oil Palm Empty Fruit Bunch
- Production of
Carboxymethyl Cellulose(CMC ) from Durians hulks
- Production of Xylanase
and CMCase on Solid Fermentation in Different Residues by Thermoascus
Aurantiacus Miehe
-
Cellulase
production by Acinetobacter anitratus and Branhamella sp
Properties and
Functions
- Chemistry and
Functionality
-
Role of
Sodium Carboxymethyl Cellulose and Hydroxyethyl Starch in Hematopoietic
Cell Line Cultures
-
Esterification of Carboxymethyl Cellulose with Acrylic
Acid for Targeted Drug Delivery System
- Efficacy of Sodium
Carboxymethyl Cellulose in the Treatment of Dry Eye Syndrome
-
Synergistic
Hydrolysis of Carboxymethyl Cellulose and Acid-Swollen Cellulose by Two
Endoglucanases from Erwinia chrysanthemi
-
Flow
properties of cellulose and carboxymethyl cellulose from orange
peel
-
Effect of
sodium carboxymethyl cellulose and methylprednisolone on the healing of
jejunal anastomoses in rats
-
Some
Properties of Crude Carboxymethyl Cellulase of Aspergillus niger Z10
Wild-Type Strain
- Thermal Properties of
Oil Palm Fibre, Cellulose and Its Derivatives
Company
Profiles
- Akay Organics
- Danisco
- Dipti Cellulose
- E.P.Industrial
&Agro Chemicals
- Libraw Pharma
- Noviant
- Patisan Chemical
- Savvy Spechems
- V V.Turakhia &
Group of Companies
- Neel Chem
- Amar Cellulose
Industries
Project and
Consultants
- Consultant - Pakistan
-
Carboxymethyl Cellulose
Nanocomposites
- Feng He
- Intota
- Sanford M. Bolton,
Ph.D.
- SRI Consulting
Material Safety Data
Sheet
- MSDS of Sodium
Carboxymethyl Cellulose
- Carboxymethyl
Cellulose
- Sodium
Carboxymethylcellulose
- Cellulosic
Polymer
- Lidocaine Viscous
Solution
- Avicel CL 611
Stabilizer
- Safety data for edifas
B
Patent
- Drilling mud containing
sodium carboxymethylcellulose and sodium carboxymethyl
starch
- Clay and mica
replacement with CMC in joint compound
- Carboxymethylated
cellulosic wound dressing
- Paste composition for
skin barrier
- Sodium
carboxymethylcellulose
- Process for preparing
alkali metal salt of carboxymethyl cellulose
- Use of carboxymethyl
cellulose(cmc) in fruit-based products
- Preparation of
water-insoluble carboxymethyl cellulose absorbents
Technology
-
Theoretical
Aspects of the Technology in Synthesis of Sodium Carboxymethyl Cellulose
from Various Raw Materials
-
Cleaner
Technologies Substitutes Assessment: Professional Fabricare
Processes
- Preparation of
Waterborne Nanoscale Carbon Black Dispersion with Sodium Carboxymethyl
Cellulose
-
A Novel
Instrument and Technique for Using Seprafilm Hyaluronic
Acid/Carboxymethylcellulose Membrane During Laparoscopic
Myomectomy
|
Products
- Sodium Carboxymethyl
Cellulose Gum
- Walocel
- Adhesion Barrier
- Lamberts Mega Mineral
Complex
- Percorten-V
- Regranex Gel
Applications
- Methylcellulose &
Sodium Carboxymethylcellulose: Uses in Paper Conservation
- Personal Care and
Household Products applications
- Personal Care
Applications
- Triple Detector
Application
- Specialties Product Functionalities
-
Increasing
Digesta Viscosity Using Carboxymethylcellulose in Weaned Piglets
Stimulates Ileal Goblet Cell Numbers and Maturation
Market
- Global Consumption of
Sodium Carboxymethyl Cellulose grows by 2% a year
- Market Outlook
- Tender
- Oil
Field Chemicals
-
Market Study
For Adhesives and Sealants With a Global Overview
-
Rapid
Reconnaissance Survey of the London Market for Guyanese
Products
-
Access of
Latin American and Caribbean exports to the U.S. market
2005-2006
-
Growth
Opportunities for Alkali Industry
-
Regulations
-
Anti Dumping
Report
-
Economic
Analysis of Air Pollution Regulations: Miscellaneous Cellulose
Manufacturing Industry
-
Purified
Carboxymethyl cellulose From Finland, Mexico, Netherlands, and
Sweden
- Institute of Medicine
Food and Nutrition Board Committee on Food Chemicals Codex
- Toxicological
Evaluation
-
Food and
Agricultural Import Regulations and Standards
- National Industrial
Chemicals Notification and Assessment Scheme
- Advanced Flue Gas
Conditioning as a Retrofit Upgrade to Enhance PM Collection from
Coal-fired Electric Utility Boilers
Machinery
Suppliers
- Machinery List
-
Machinery from Germany
- Equipments from India
Suppliers and
Buyers
- Sodium Carboxymethyl
Cellulose China Suppliers
- Manufacturers of
Sodium Carboxymethyl Cellulose
- Manufacturers Directory
of Sodium Carboxymethyl Cellulose
- Hollimex Products
Ltd
- Foreign
Exporters & Manufacturers
- Indian
Exporters & Manufacturers
- Sodium Carboxy Methyl
Cellulose Manufacturers
- Sodium Carboxy Methyl
Cellulose Selling Leads
- Sell offers Sodium
Carboxy Methyl Cellulose
- Trade Leads of Sodium
Carboxy Methyl Cellulose
- Sodium Carboxymethyl
cellulose Suppliers
- Sodium Carboxymethyl
cellulose Sellers
- Sodium Carboxymethyl
cellulose Exporters
- Sodium Carboxymethyl
Cellulose Trade Leads
- Wealthy Chemical
Industry
- Sodium Carboxymethyl
cellulose Buyers List
Guides
- Medication Guide
- The Healthy Person's
Guide to Personal Care Ingredients
- A Concise Guide to
Diagnosis and Management for Health Professionals
- Drugs and Treatments -
Carboxymethylcellulose Sodium Opht
Order the CD ROM
Today |