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Properties of Hydroxyethyl Methylcellulose MHEC/HEMC

Time:2024/2/26Posted:SHANDONG KUNDU CHEMICAL CO.,LTD.

1. Solubility

Hydroxyethyl Methylcellulose (HEMC) can soluble in water and some organic solvents, also can be dissolved in cold water. Its maximum concentration is only determined by the viscosity. The solubility changes with the viscosity. The lower the viscosity, the greater the solubility.


2. Salt resistance

Hydroxyethyl Methylcellulose (MHEC) is a nonionic cellulose ether and is not a polyelectrolyte. Therefore, it is relatively stable in aqueous solution in the presence of metal salts or organic electrolytes. However, excessive addition of electrolytes can cause gelation and precipitation.

 

3. Surface activity

Since the aqueous solution has surface-active functions, Hydroxyethyl Methylcellulose (HEMC) can be used as a colloidal protective agent, emulsifier and dispersant.

 

4. Hot gelling

When the Hydroxyethyl Methylcellulose (MHEC) aqueous solution is heated to a certain temperature, it becomes opaque, gels, and precipitates, but when it is continuously cooled, it returns to its original solution state. The temperature at which this gel and precipitation occurs mainly depends on their lubricants, suspending agent, protective colloid, emulsifier, etc.

 

5. Bio-stable

Hydroxyethyl Methylcellulose (HEMC) has relatively good anti-mold ability and good viscosity stability during long-term storage.

 


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