Carboxyl Methyl Cellulose / CMC

Quick Details

Classification: Chemical Auxiliary Agent

CAS No.: 9004-62-0

Purity: 95%

Place of Origin: Tianjin, China (Mainland)

Type: Other

Usage: Surfactants

Other Names: Hydroxyethyl Cellulose

 

Packaging & Delivery

Packaging Detail: 25kgs per bag.

Delivery Detail: PROMPT SHIPMENT

 

Specifications

We specialize in producing and selling high quality products Hydroxyethyl cellulose HEC with reasonable price.

 

Physical Properties

Hydroxyethyl cellulose HEC is one kind of non-ionic surface active agent, white or a kind of white odorless tasteless easy to flow powder, 40 item ratio is great than or equal to 99%, softening temperature: 135-140° C, apparent density: 0.35-0.61g/ml, decomposition temperature: 205-210° C, has water absorbability and balance moisture content: 23° C; 50%rh 6%, 84%rh, 29%. Normaly dissolves in cold and hot water, does not dissolve in the majority organic solvents. pH in 2-12 viscosity changes little, but surpass this scope viscosity will reduce. Under high temperature or boil it may be not precipitates, has wide range solubility and viscosity, namely non-hot gelatin nature; It can exist with water-soluble, surfactants, salt. It is an excellent colloid thickener with high concentration, moisture is twice than methyl cellulose and has good flow accommodative. HEC has protective colloid ability.

 

Purpose introduced

1. Used in water emulsion coating: HEC as protective colloid can be used to VAC(vinyl acetate) emulsion polymerization, improve the aggregate system in wide pH polymer system within the scope of the stability. In the manufacture of products that filler pigments stable and provide uniform dispersion thickening.

2. For styrene. Acrylate. Acrylonitrile made such suspension polymer dispersing.

3. In oil drilling: In drilling well cementing and fracturing operation all kinds of mud, HEC as a thickener, make good liquidity and mud. In drilling, improve mud carrying capacity and prevent water from the mud into the oil reservoir, stable production capacity.

4. Be used to build construction and building material. Because the ability of guaranteeing water is strong and HEC is a cement paste the mortar's effective increase the dense agent and agglomerant, put it to the mixed mortar, it can improve flowability and the function being under construction and prolong moisture content evaporating time and improve the concrete initial stage intensity and avoid a crack. Be used to whitewash gupse and notably rise the ability in water-proof and cementation intensity.

5. Be used for toothpaste. Because the resisting of salt and acidity stronger, HEC can ensure the toothpaste lubricates body's stability and increase mouth feeling. Another because the good guarantee ability in water and the emulsification ability, it can force toothpaste not to exchange drying.

6. In being used for ability in printing ink, HEC may make ink drying not permeate quickly. Another HEC is widely used for spinning, weaving printing and dyeing, paper making, chemistry product.

 

 

Indexes/Model	Toothpaste Grade		Pharmaceutical Grade				Chemical Reagent Grade
	IH10	IH9	PH9	PM9	PH7	PM7	PH6	RM6
Viseosity, mpa. S 2% Water Solution	800-1200	800-1200	800-1200	300-800	800-1200	300-800	800-1200	300-800
Degree of Substitution ≥	0.95	0.85	0.85	0.85	0.70	0.70	0.65	0.65
Chloride % ≤	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
PH	6.5-8.0	6.5-8.0	6.5-8.0	6.5-8.0	6.5-8.0	6.5-8.0	6.5-8.0	6.5-8.0
Loss on Drying % ≤	7.0	7.0	7.0	7.0	7.0	7.0	7.0	7.0
Heavy Metal % ≤	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002
Iron % ≤	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03
Arsenic % ≤	0.0002	0.0002	0.0002	0.0002	0.0002	0.0002	0.0002	0.0002

Resource:

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