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Methyl cellulose

Brand : JST Chemical

Product origin : Zibo

Delivery time : Within 5-7 days after receive the advanced payment

Supply capacity : 5000kg per month

Product specification:

CAS No.: 9004-67-5

EINECS No.:232-674-9

Molecular Weight: 0

HS code: 3912310000

Molecular formula: N/A

Density: 1.39g/cm3

Apparent density: 0.25-0.7g/cm3

Carbonization temperature: 225-230°C Color-change

temperature: 190-200°C

Surface tension(25°C): 47-53dyn/c


Product description:

Methyl cellulose/MC is a kind of non-ion aqueous cellulous ether,white or white-similar powder or granule,no odor or taste,nontoxic,with a little hygroscopicity. Different substitution offers different solubility,usually medium substitution(DS between 1.5-2.0) comes under cool aqueous model,and finds widest applications. Methyl cellulose dissolves in cool water and some organic solvents,does not dissolve in hot water.In hot water at 80-90°C it dissolves and swells,after cooled down,dissolving quick. Its solution possesses reversible hot gelling characteristic,stable to acid and alkali,is not effected between PH 2-12, with excellent anti-mildew ability,capable of dispersing, emulsifying, agglomerating, thickening, holding water,forming film etc.Film formed by its offers superior toughness flexibility, transparency and oil resistance.

Methyl cellulose is used as agents of thickening,coherence,water-holding,film-forming, shaping, dispersing, retard etc.In building construction, building material, coating, ceramics, textile printing & dyeing,leather,tobacco, ink,paper making,petrochemical,daily-use chemical etc.For example,putting MC in cement slurry may decrease water loss on the surface, even if used in dry wall it also can prevent wall cracking, improve its coherence and workability;used in cement product, MC makes methyl cellulose firm and hard but not shrink too much; used in emulsion or aqueous resin coating, MC gives coating a good wearability,fluidity,uniformity,stability for storage and endurance to heavy metal pigment dissolving.


Product usage:

1. Use after fast dissolving:

While kept stirring,methyl cellulose may disperse,swell,dissolve until transparency.The following method may reach fast dissolving:

(1) Heat the required water to 80-90℃ ,put in MC slowly while stirring,when slurry is formed and cooled,continue to stir,it will dissolve fully.

(2) Heat half the water to 80-90℃,put it in while stirring until it becomes slurry,then add the residual cool water and stir it until transparency.

2. Prepare Gruel-like Mother liquor for Use:

First prepare MC into high thick gruel-like mother liquor(the same method as above), when used, supplement adequate cool water and continuously stir until transparency.

3. Dry-Blending:

Methyl cellulose owns excellent compatibility, so it can be easily mixed dry with cement, plaster powder, pigment etc.a good effect can be obtained.Especially,it has good mixing-ability with water-soluble substance such as washing powder,starch etc.so it can be directly be mixed.


Package and Storage:20kg or 15kg net weight in plastic-coated or paper-plastic compound bag lined with PE bag inside.


Product parameters:

Item

Grade

 

Methoxy (WT%)

27.5-31.5

Gelation temperature ()

50.0-55.0

Viscosity (mPa.s) (2% solu., 20)

15, 20, 50, 100, 400, 4000

Loss on drying (%)

≤5.0

Residue on ignition (%)

≤1.0

pH

4.0-8.0

Heavy metals (ppm)

≤20

Arsenic (ppm)

≤2.0





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