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What is the difference between carboxymethyl cellulose and hydroxypropylmethylcellulose?
Wiki User
∙ 14y ago
Carboxymethyl cellulose, or CMC, is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone.
It 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 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.
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.
Carboxymethylcellulose is an acid.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoHypromellose (short for hydroxypropyl methylcellulose) is an emulsifier, thickening and suspending agent. It is also an alternative to animal Gelatin. It can be used in many products such as food, paint, construction materials, cosmetics, etc.
Wiki User
∙ 14y agoThe main difference b/w carboxymethyal cellulose and hydroxypropylmethylcelloluse that the first one contain only one alkyl group mean methyl containing one carbon.while the second cellulose compound contain two alkyl groups.
morever in first cellulose compound carboxy(functional group)is attached.in the second hydroxy functional group is attached.
Wiki User
∙ 10y agoThis substance is considered now as safe.
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What is the difference between carbohydrates and cellulose?
carbohydrates have a chemical composition similar to cellulose; however, they are not polymers.
What is the structural differences between starch and cellulose in term of their roles in plants?
The basic functional difference is that Starch is for energy storage and Cellulose is for Cell Wall formation.The difference in structure is in the two possible ways to connect the glucose monomers together.
What is the different between plant cell and animal cells?
The most prominent difference is that a plant cell has a cellulose cell wall.
What is the chemical reaction between sodium hydroxide and cellulose?
Alfa-cellulose (the true cellulose) is not dissolved in NaOH.
What is the difference between plant and animal cell?
Plant cells have chloroplasts and cell walls made of cellulose, and animal cells do not. Animal cells contain centrioles and plant cells do not.
What is the difference between avicel and microcrystalline cellulose?
There is no difference. Avicel is the brand name of the first microcrystalline cellulose on the market.
Difference between maltose and cellulose?
difference between cellulose and maltose is that cellulose is (chiefly in technical texts) while maltose is (carbohydrate) a disaccharide, c12h22o11 formed from the digestion of starch by amylase; is converted to glucose by maltase.
What is the difference between carbohydrates and cellulose?
carbohydrates have a chemical composition similar to cellulose; however, they are not polymers.
What is the difference between viscose and cellulose acetate?
same properties
Difference between methyl cellulose and ethyl cellulose?
Cellulose has 3 hydroxyl (OH) groups on each glucose unit. Methyl cellulose replaces these hydroxyl groups with methoxy (OCH3) groups. Therefore it follows that these groups are now replaced with ethoxy groups or (OCH2CH3) groups.
What is the structural differences between starch and cellulose in term of their roles in plants?
The basic functional difference is that Starch is for energy storage and Cellulose is for Cell Wall formation.The difference in structure is in the two possible ways to connect the glucose monomers together.
What is the difference between cellulose and cellulite?
Cellulose is another name for the plant fiber that makes up wood and paper. It has no relation to cellulite, a fatty deposit with a dimpled appearance, typically on your thighs.
One difference between plant and animal cell is that animal cells do not have?
chloroplast and large vacuole and cellulose cell wall
What is the different between plant cell and animal cells?
The most prominent difference is that a plant cell has a cellulose cell wall.
The difference between the chemical bonds in starch and those in cellulose?
they are all glycosidic bonds. in cellulose they are bonded so the sugars flip after every bond like a zig zag. in amylose it forms a right handed helix. in amylopectin it forms a right handed helix with a lot of branches (make it less soluble than amylose) Also Cellulose bonds are not hydrolyzed by human enzymes.
What is the chemical reaction between sodium hydroxide and cellulose?
Alfa-cellulose (the true cellulose) is not dissolved in NaOH.
What is the relationship between termites and the cellulose?
Termites eat cellulose. Wood is made of cellulose so termites eat wood.
