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- Chemical Name: Methyl cellulose
- CAS No.: 9004-67-5
- Molecular Fomula: ： C20H38O11
- Molecular weight：454.50912
- Appearance:Light brown powder
- Sample：Available
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Description of Methyl cellulose
- Methyl cellulose (or methylcellulose) is a chemical compound derived from cellulose. It is a hydrophilic white powder in pure form and dissolves in cold (but not in hot) water, forming a clear viscous solution or gel. It is sold under a variety of trade names and is used as a thickener and emulsifier in various food and cosmetic products, and also as a treatment of constipation. Like cellulose, it is not digestible, not toxic, and not an allergen.
Basic Info of Methyl cellulose
Basic Info
Numbering system
Basic Info
| Chemical Name | methyl cellulose |
| Synonyms | |
| CAS No. | 9004-67-5 |
| Molecular Formula | C29H54O16 |
| Molecular Weight | 658.72900 |
| PSA | 147.68000 |
| LogP | -0.37790 |
Numbering system
| EINECS number | 618-391-7 |
What is Methyl cellulose?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Methyl cellulose which has developed particularly rapidly in recent years. Do you know about Methyl cellulose?
- The official answer：A methyl ether of cellulose. White or light yellow or light gray small particles (95% through 40 mesh sieve), fibrous or powder. Odorless and tasteless. Hygroscopic. Apparent density 0.3~0.7g/m1. When the R in the structure is all methyl, its replacement degree is equal to 3, and the methoxy content is 45.57%. The methoxy content of methylcellulose used as a food additive should be between 26% and 33%, and its corresponding replacement degree is 1.7~2.2. When the replacement degree is lower than 1.3, it is soluble in alkali, and above 2.6, it is soluble in an organic solvent. Those between 1.3~2.6 are soluble in cold water, pyridine, aniline, dimethylformamide, benzyl alcohol, and glacial acetic acid. The aqueous solution is stable at neutral and room temperature, but gelling and precipitation occur at high temperatures. The gelling temperature depends on the viscosity and concentration of the solution and is lower when the viscosity and concentration are large. When inorganic salts are present, the viscosity can rise. Because of the non-ionic solution, multivalent metals can not make it precipitate, only when the electrolyte concentration and other dissolved substances exceed a certain limit, the gelation will occur. The aqueous solution has surface activity, forms a film after drying, and undergoes a reversible transformation from sol to gel in turn by heating and cooling.
What’s the application of Methyl cellulose?
- Thickener; stabilizer; emulsifier; excipient; dispersant; binder; film-forming agent hydrosol substitute. Also used in mayonnaise, shortening, and certain other foods. Because this product is not digested in the body, it can retain several times the amount of water and cause a feeling of satiety and can be used to make therapeutic foods such as soda crackers and waffles. When using it, moisten the powder with about 1/5 of the required amount of water in hot water, then add cold water (or ice if necessary) and mix well. eec: It is permitted to be used for frozen foamed products, potato chips, soft drinks, special dietary foods, bakery fillings, foamed toppings, sauces, and dressings. Use The product is widely used in the construction industry. Such as cement, mortar, jointing mastic, and other mixing agents. In cosmetics, medicine, food industry as a binder for a film-forming agent, also used as francium weaving printing and dyeing sizing agent, synthetic resin dispersant, coating film-forming agent, and thickening agent. Methyl fiber is a very stable substance and can resist the action of acid, alkali, microorganisms, and heat. In the human body, it excretes out of the body without any change at all. Used as synthetic resin dispersant, coating film-forming agent, thickener, building material binder, textile printing, dyeing sizing agent, film-forming agent for the pharmaceutical and food industries, etc. Thickener; stabilizer; emulsifier; excipient; dispersant; binder; film-forming agent hydrosol substitute. Also used in mayonnaise, shortening, and other certain foods. Because this product is not digested in the body, it can retain several times the amount of water and cause a feeling of satiety and can be used to make therapeutic foods such as soda crackers and waffles. When using, moisten the powder with about 1/5 of the required amount of water in hot water, then add cold water (or ice if necessary) and stir well. EEC: It is permitted to be used for frozen foamed products, potato chips, soft drinks, special dietary foods, bakery fillings, foamed toppings, sauces, and dressings. Uses in dilute methylcellulose solution for thousands of bases of nucleotides in the pulse-field capillary electrophoresis, in semi-solid methylcellulose medium for the culture of bone marrow cells. Used in the pharmaceutical industry as a protective colloid and dispersant, proliferator, stabilizer and emulsifier, binder. The aqueous suspension is neutral to litmus paper, with different types of molecular weight from 4000 to 180,000, generally containing methoxy 25-30%. Solubility: The product can dissolve in cold water and form a transparent viscous solution. Because it contains a certain amount of hydrophobic group, it can be soluble in some organic solvents and also soluble in a mixture of water and organic matter. Salt resistance: This product is a non-ionic and non-polymeric electrolyte, so it is relatively stable in aqueous solutions of metal salts or organic electrolytes. It may cause gelling or precipitation in the case of excessive electrolytes. Surface activity: The aqueous solution of this product has surface activity and functions as a colloidal protector, emulsifier, and dispersant. Thermal gelling effect: When heated to a certain temperature the aqueous solution of methylcellulose becomes an opaque solution due to gelation or precipitation generation. However, it becomes the original solution state again after gradual cooling. The temperature at which coagulation and precipitation occur is determined by the type of product, the concentration of the solution, and the heating rate. Low ash content: The product is refined by using hot water washing during the preparation process to take advantage of its thermal gelation properties, so it has a very low ash content. Contraindications: Amino amidine hydrochloride, chloromethyl phenol, permethrin chloride, phenol, tannic acid, silver nitrate, cetyl pyridine hydrochloride, p-hydroxybenzoic acid, p-aminobenzoic acid, p-hydroxy
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