Hydroxyethylmethyl cellulose is a nonodorless, tasteless, and non-toxic white powder that dissolves in cold water to form a transparent, viscous solution.
It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, cemelling, surface activity, maintaining water, and protecting colloid, etc.
Because the aqueous solution has a surface-active function, it can act as a colloidal protective agent, emulsifier and dispersant.Hydroxyethylmethyl cellulose solution is a high efficiency water retaining agent.
Hydroxyethyl methyl cellulose because of the hydroxyethyl group, so it has good mildew resistance, good viscosity stability in long-term storage and mildew resistance.
1. Appearance: HEMC is a color or white fibrous or granular powder; odorodor.
2. Solubility: Model H in HEMC can be soluble in both cold water and hot water, model L can only be soluble in cold water, and HEMC is insoluble in most organic solvents.HEMC is dispersed in cold water and dissolves slowly, but its PH modulation from 8 to 10 can dissolve quickly.
3.PH stability: the viscosity of the PH value changes less in the range of 2 to 12, and the viscosity decreases beyond this range.4. Granularity: 40 entry pass rate> 99%80 entry pass rate 100%
4. Visual density: 0.30-0.60g/cm
5. HEMC has the characteristics of thickening, suspension, dispersion, adhesion, emulsification, film formation and water retention. It has stronger water retention than methyl cellulose, and stronger viscosity stability, mildew resistance and dispersion than hydroxyethyl cellulose.