Factory Supply Methyl cellulose CAS 9004-67-5 With Best Price User Guide

1. Basic Information and Parameters
2. Uses of Methyl Cellulose
3. How to Use Methyl Cellulose
4. Usage Case Studies
5. Contact Information

Basic Information and Parameters

Methyl cellulose with the CAS number 9004 - 67 - 5 is a cellulose derivative in which some of the hydroxyl groups on the repeating glucose units of cellulose have been substituted with methoxy groups. It is a white to off - white fibrous or granular powder.

Some key physical and chemical parameters include:

• Solubility: It is soluble in cold water, forming a clear to slightly opalescent viscous solution, but insoluble in hot water, alcohol, ether, and chloroform.
• Viscosity: The viscosity of methyl cellulose solutions can vary widely depending on the degree of substitution and the concentration. It can range from low - viscosity types suitable for applications requiring easy flow to high - viscosity types for thickening and gel - forming purposes.
• pH Stability: It is stable over a wide pH range, typically from 3 to 11, which makes it suitable for use in various chemical environments.

Uses of Methyl Cellulose

Methyl cellulose has a wide range of applications across different industries:

Food Industry

In the food industry, it is used as a thickening agent, emulsifier, stabilizer, and film - former. For example, it can be added to salad dressings to improve texture and prevent oil separation. It also helps in improving the moisture retention of baked goods, thus extending their shelf life.

Pharmaceutical Industry

As a pharmaceutical excipient, methyl cellulose is used in tablet coatings to control the release of drugs. It can also be used as a suspending agent in oral suspensions, ensuring uniform distribution of the active ingredient.

Construction Industry

In construction, it is added to cement - based mortars to improve workability, water retention, and adhesion. This helps in preventing the mortar from drying out too quickly, especially in hot and dry conditions.

How to Use Methyl Cellulose

When using methyl cellulose, the following steps are generally recommended:

1. Dispersion: First, disperse the methyl cellulose powder in a suitable solvent (usually cold water). It is important to add the powder slowly while stirring continuously to avoid the formation of lumps. High - shear mixing can be used for better dispersion.
2. Dissolution: After dispersion, allow the mixture to stand for a period of time to allow the methyl cellulose to fully dissolve. Heating the mixture slightly (but not above its gel - forming temperature) can speed up the dissolution process.
3. Adjustment: Depending on the application, the viscosity and other properties of the solution may need to be adjusted. This can be done by adding more solvent or increasing the concentration of methyl cellulose.

Usage Case Studies

Case 1: Baked Goods in the Food Industry

A bakery was facing issues with the moisture loss and staling of its bread products. By adding methyl cellulose to the bread dough at a concentration of 0.5%, they noticed a significant improvement. The bread retained moisture for a longer time, and the texture remained softer. The shelf life of the bread increased from 2 days to 4 days, resulting in less product waste and higher customer satisfaction.

Case 2: Tablet Coating in the Pharmaceutical Industry

A pharmaceutical company was developing a new controlled - release tablet. They used methyl cellulose as a coating material. By carefully controlling the thickness and composition of the methyl cellulose coating, they were able to achieve the desired drug release profile. The tablets showed a slow and steady release of the active ingredient over a period of 12 hours, which was in line with the therapeutic requirements.

Case 3: Mortar in the Construction Industry

A construction project in a hot and dry region was experiencing problems with the rapid drying of cement - based mortars, which led to cracking and poor adhesion. By adding methyl cellulose to the mortar at a rate of 0.2%, the workability of the mortar improved significantly. The water retention of the mortar increased, and the problem of rapid drying was solved. This resulted in better - quality masonry work and reduced repair costs.

Contact Information

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