Carboxymethyl cellulose (CMC) belongs to the category of anionic cellulose ethers, with the appearance of white or slightly yellow flocculent fiber powder or white powder, odorless, odorless, and non-toxic; Easily soluble in cold or hot water, forming a transparent solution with a certain viscosity. The solution is neutral or slightly alkaline, insoluble in organic solvents such as ethanol, ether, etc.and soluble in ethanol solutions with 60% water content. It has hygroscopicity and is stable to light and heat. Its viscosity decreases with increasing temperature. The solution is stable at pH 2-10, and when pH is below 2, solid precipitates occur. When pH is above 10, its viscosity decreases. The color change temperature is 227 ºC, the carbonization temperature is 252 ºC, and the surface tension of the 2% aqueous solution is 71mn/n.
1,Natural cellulose is the most widely distributed and abundant polysaccharide in nature, with a very rich source.
2,The current modification technologies for cellulose mainly focus on etherification and esterification.
3,Carboxymethylation reaction is a type of etherification technology.
4,Cellulose undergoes carboxymethylation to obtain carboxymethyl cellulose (CMC).
5,Its aqueous solution has functions such as thickening, film-forming, bonding, water retention, colloid protection, emulsification, and suspension.
6,It is widely used in industries such as petroleum, food, textile, and papermaking, and is one of the most important cellulose ethers.
| Items |
Specification
|
|
Min
|
Max
|
| Appearance |
White to slightly off-white
granular powder
|
|
Methoxy content (%):
|
28.0
|
30.0
|
|
Hydroxypropyloxy content
(%):
|
7.0
|
12.0
|
|
Loss on drying( %):
|
0.0
|
5.0
|
|
Residue on Ignition (%):
|
0.0
|
1.5
|
|
PSD (%, pass through
100mesh):
|
0.0
|
3.0
|
|
Viscosity (2% on dry basis , mPas):
|
13000.0
|
17000.0
|
|
PH
|
5.5
|
7.5
|
|
Fe(ppm)
|
≤15
|
Carboxymethyl cellulose (CMC) is a non-toxic and odorless white flocculent powder with stable performance and easy solubility in water. Its aqueous solution is a neutral or alkaline transparent viscous liquid, soluble in other water-soluble adhesives and resins, and insoluble in organic solvents such as ethanol. CMC can be used as an adhesive, thickener, suspension agent, emulsifier, dispersant, stabilizer, sizing agent, etc.
Application
1. Used for drilling, well digging, and other engineering projects for oil
Mud containing CMC can form thin and hard filter cakes with low permeability on the wellbore, reducing water loss.
After adding CMC to the mud, the drilling rig can achieve low initial shear force, making it easy for the mud to release the gas trapped inside, while quickly discarding debris in the mud pit.
Drilling mud, like other suspended dispersions, has a certain lifespan, and the addition of CMC can stabilize it and extend its lifespan.
Mud containing CMC is rarely affected by mold, so there is no need to maintain a high pH value or use preservatives.
Containing CMC as a drilling mud flushing fluid treatment agent, it can resist pollution from various soluble salts.Mud containing CMC has good stability and can reduce water loss even at temperatures above 150 ºC.
2. CMC is used in the textile and dyeing industries as a sizing agent for light yarn sizing of fabrics such as cotton, silk, chemical fibers, and blends.
3. CMC used in the paper industry can be used as a paper smoothing agent and sizing agent. Adding 0.1% to 0.3% CMC to the pulp can enhance the tensile strength of the paper by 40% to 50%, increase the compressive strength by 50%, and increase the knedability by 4-5 times.
4. CMC can be added to synthetic detergents as a dirt adsorbent; The glycerol aqueous solution of daily chemicals such as CMC in the toothpaste industry is used as the adhesive base for toothpaste; Used in the pharmaceutical industry as thickeners and emulsifiers; CMC aqueous solution is used for floating mineral processing after increasing viscosity.
5. Used in the ceramic industry as an adhesive, plasticizer, suspension agent for glaze, color fixing agent, etc. for making blanks.
6. Used in construction to improve water retention and strength.
7. It is used in the food industry. In the food industry, CMC with high displacement degree is used as the thickener of ice cream, cans, instant noodles, foam stabilizer of beer, etc., and it is used as the thickener, binder or shaping agent in the processing of jam, syrup, fruit juice, Dim sum, ice cream drinks, etc.
Packaging and Transportation
Packing: In 25kgs/ bag.
Storage: Keep container tightly closed in a cool, dry and well-ventilated place, avoiding exposure of the packaged product to direct sunlight.
QINGDAO NEWSANDA INDUSTRY CO.,LTD It is an emerging industrial trading company specializing in the production and sales of chemical products such as cellulose, titanium dioxide, dispersible latex powder, silica, stearic acid, zinc oxide, ultraviolet absorbers, antioxidants, microsphere expanders, and plastic foaming agents. It is a large professional company in ShanDong with production facilities in both Hebei and Guangdong. The company has always adhered to the principle of "reputation first, customer first, high-quality service, sincerity and trustworthiness, small profits and quick sales". Over the years, the company has received the care and support of friends from all walks of life, leading to steady development. It has established a scientific and flexible marketing system and a fast and efficient market response mechanism. Adhering to the business principle of "mutual benefit and common development", we have been continuously improving product quality in the past decade and striving to meet customer requirements. At present, close sales relationships have been established with customers in more than ten cities including Jiangsu, Shandong, Shanghai, Sichuan, Guangdong, Beijing, Zhejiang, Hunan, Hubei, Hebei, etc. The product quality and service quality have been recognized by users. We provide export services in international trade agency, and our products are also exported to Southeast Asia, the Middle East, Africa, South America, and other places. We sincerely hope to establish and maintain long-term, stable, and friendly cooperative relationships with all large, medium, and small clients. At present, the company mainly engages in chemical products such as ceramics, plastics, rubber, home decoration, building materials, safety protection, transportation, roads, daily chemicals, printing and dyeing, and other related chemical products. The company will adhere to the principle of "mutual benefit, win-win situation, and common development" and be committed to providing customers with comprehensive services.
FAQ
1,Q: What are the application areas of your products?
A:Widely used in water-based latex coatings, construction and building materials, printing inks, petroleum drilling, etc., it plays a thickening and water retention role, improves workability, and is used for dry and wet mortar series products.
2,Q: How can I get sample for lab test?
A: We could provide some free samples to you. Please provide yourcourier account for sample arrangement.
3,Q: How to know the exact price for this product?
A: Provide your email address and detailed order info,then we cancheck and reply you a latest and exact price.
4,Q: What's your delivery time?
A: Usually we will arrange the shipment in 3-5 days.
5,Q: We have more questions, how to contact you?
A: Welcome to contact us on alibaba,we'll reply as soon as possible.
6,Q: Are you a factory or trading company?
A: Yes,we are factory, but not only factory, we also have sales team, own designers, own showroom, can help buyers to decide which products are their suitable choice, and all your inquiry will be replyed within 24 hours.
7,Q:Could you send me all your catalogues and price list?
A: We have many types of products, and even products of the same model may have different levels of ingredients. Therefore, you can send me the specifications of the products you need, and I will find a quotation for the products you want.
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