Hydroxypropyl Cellulose for Use as Water Retention Agent

Introduction of Hydroxypropyl Cellulose

Physical and chemical properties of Hydroxypropyl Cellulose
A propylene glycol ether of methyl cellulose in which both hydroxypropyl and methyl groups are bound by ether bonds to the anhydrous glucose ring of the cellulose. The ratio of methoxy to hydroxypropyl content varies from type to type. White to off-white fibrous powder or granules. Soluble in water and some organic solvents. Insoluble in ethanol, the aqueous solution is surface-active and forms a thin film after drying, which undergoes a reversible transformation from a sol to a gel sequentially by heating and cooling.White or slightly yellow or gray particles or fibrous powder. Odorless and tasteless, combustible, thermoplastic. Dissolves in water into transparent to milky white viscous colloidal solution. Soluble in ethanol, insoluble in ether. Insoluble in water above 38℃.

EINECS:618-388-0
Chemical formula:C3H7O*
Molecular weight:59.08708
Density:0.5 g/mL at 25 °C (lit.)
Melting point:371.06 °C
Boiling point:891.2°C at 760 mmHg
Flash Point:492.8°C
Water solubility:Soluble in polar organic solvents, in water at room temperature.Soluble in water, methyl alcohol, ethyl alcohol and other organic solvents.
Vapor Pressure:0 mmHg at 25°C

Color:White to light cream

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（1）Catalysts And Auxiliaries：Generally speaking, a catalyst is a substance that participates in the intermediate course of a chemical reaction and can selectively change the rate of the chemical reaction, while its own quantity and chemical properties remain basically unchanged before and after the reaction. Usually, the catalyst accelerates the chemical reaction, so that the reaction reaches the chemical equilibrium as soon as possible is called catalytic effect, but does not change the equilibrium of the reaction.

Additives are a variety of auxiliary chemicals that need to be added during the production or processing of certain materials and products in order to improve the production process and enhance the performance of the product required for a variety of auxiliary chemicals.

（2）Petrochemicals:Petroleum products is a generic term for a variety of commodities that are produced directly from petroleum or a portion of petroleum.Petrochemical use petroleum as the basic raw material.The petroleum industry has always been dominated by the production of petrol, paraffin and Fuel Oil for industrial boilers. 

（3）Our Petrochemicals include Special Oils And Fats, Petroleum Product Additives, petroleum waxes and so on.