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| Customization: | Available |
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| Apperance: | White Powder |
| Application: | Thickening Agent |
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Product name: Methyl Hydroxyethyl Cellulose (MHEC/HPMC)------CAS No.: 9032-42-2
Hydroxyethyl Methyl cellulose (MHEC) is a kind of methyl cellulose derivative which is made from natural high polymer cellulose. It is widely used in many different industries as water retention agent, thickener, adhesive agent and dispersant etc. It could dissolve in water and form a clear solution with specific viscosity. MHEC has a good stability even though in alkaline environment and provide a good stability in heat environment. Widely used in dry mix mortar industry, oil drilling, detergent and paint and costings etc.
Product Description
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Typical grade
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Viscosity
(NDJ, mPa.s, 2%) |
Viscosity
(Brookfield, mPa.s, 2%) |
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HPMC KM400
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320-480m
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320-480m
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HPMC KM810M
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5500-10000
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5500-10000
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HPMC KM815M
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10000-18000
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10000-18000
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HPMC KM840M
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36000-48000
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15000-25000
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HPMC MP200M
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160000-240000
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Min70000
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HPMC KM860M
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48000-72000
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24000-36000
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HPMC KM4000
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3200-4800
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3200-4800
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HPMC KM8100M
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80000-120000
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38000-55000m
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HPMC KM8100MS
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80000-120000
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38000-55000
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HPMC KM8150M
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120000-180000
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55000-65000
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HPMC KM8150MS
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120000-180000
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55000-65000
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HPMC KM8200M
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160000-240000
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Min 70000
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HPMC KM8200MS
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160000-240000
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Min 70000
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Application
(1) Construction
Cement mortar and putty powder: As a thickener and water-retaining agent, adding HPMC can increase the viscosity of mortar and putty powder, improve construction fluidity, and reduce excessive evaporation of water, thus avoiding wall cracking and powdering. It also enhances the adhesion between the coating and the base layer and prolongs the construction open time.
Tile adhesive: It can improve the water retention and bonding strength of tile adhesive, prevent tiles from hollowing and falling off due to rapid water loss, ensure that tiles are firmly adhered, and is suitable for all types of indoor and outdoor tile paving scenes.
External wall insulation mortar: It can optimize the workability of the insulation mortar, improve the integrity and stability of the insulation layer, reduce shrinkage and deformation, enhance the insulation effect, and help build energy conservation.
(II) Pharmaceutical field
Oral preparations: used as binders, disintegrants, and coating materials in tablets and capsules. As a binder, it can tightly bind the drug powder, ensuring that the tablet hardness and disintegration meet the standards; as a coating material, it can form a smooth film, mask the drug odor, control the drug release rate, and improve drug stability.
Ophthalmic preparations: used in eye drops, eye gels and other products as thickeners and suspending agents to increase the viscosity of the liquid, prolong the drug's residence time in the eye, improve the drug's efficacy, and reduce drug irritation to the eye.
Topical preparations: They play a role in thickening, emulsifying and stabilizing ointments and creams, improving the texture and ductility of the preparations, ensuring uniform distribution of active ingredients, and improving comfort during use.
(3) Food sector
Food additives: As thickeners, stabilizers, and emulsifiers, they are used in cold drinks (such as ice cream and popsicles) to improve the taste of the product, increase its smoothness, and prevent ice crystal precipitation; in baked goods (such as bread and cakes), they can enhance the water retention of the dough, delay product aging, and extend the shelf life; in sauces (such as salad dressing and ketchup), they can increase viscosity, improve fluidity, and stability.
Health food: It can be used as a carrier of dietary fiber or used to prepare sustained-release health food to help control the release of active ingredients and improve human absorption efficiency.
(IV) Daily Chemicals
Cosmetics: In products such as creams, lotions, and shampoos, it acts as a thickener and stabilizer to adjust product viscosity, make the texture more uniform, enhance product stability, prevent stratification, and improve skin feel and smoothness during use.
Detergent: It can increase the viscosity of detergent, improve the appearance of the product, and at the same time help enhance the cleaning ability, reduce the loss of detergent during use, and improve the efficiency of use.Transportation Methods
1. Road transport
Use kraft paper bags or paper barrels lined with polyethylene plastic bags (common specifications are 25kg/bag and 50kg/barrel). Transport vehicles must be equipped with rain and moisture-proof facilities. During transportation, avoid packaging damage, squeezing, and exposure to sunlight. Do not mix with strong oxidants, strong acids, strong bases, and other corrosive substances. Suitable for medium and short distance transportation, with fast transportation time and high flexibility.
2.Railway transportation
Choose boxcar transport, ensuring the carriage is dry and clean, and the packaging is secure to prevent damage from bumps during transport. Rail transport has a large load capacity and is relatively low-cost, making it suitable for long-distance, large-volume transportation. During transportation, the railway department's regulations on the transportation of dangerous goods and chemical raw materials must be followed (HPMC is not a dangerous good and is transported as a normal chemical raw material).
3. Ocean transport
Use well-sealed containers for transportation, and the packaging must be moisture-proof to prevent seawater erosion and humid environments from affecting product quality. Ocean transportation is suitable for cross-border and long-distance large-volume transportation. The transportation cost is low, but the timeliness is relatively slow. The transportation time must be planned in advance, and it must comply with the relevant standards and customs declaration requirements of the destination country for chemical product imports.
Storage Conditions
HPMC should be stored in a cool, dry, and well-ventilated warehouse, away from direct sunlight and high temperatures (recommended storage temperature not exceeding 30°C), and away from sources of fire and heat. The relative humidity in the warehouse should be controlled below 60% to prevent the product from absorbing moisture and clumping. During storage, it should be stacked separately, away from toxic, harmful, odorous, and corrosive substances. Stacking should not be too high to prevent the bottom packaging from being compressed and damaged. The product has a shelf life of 24 months (unopened and in compliance with storage conditions). After opening, it should be used as soon as possible and the packaging should be sealed to prevent moisture and deterioration.
Quality Standards
This product complies with the relevant quality requirements of GB/T 20783-2021 "Cellulose E thers," USP (United States Pharmacopoeia), EP (European Pharmacopoeia), and JP (Japanese Pharmacopoeia). Test reports for these standards can be provided upon request. Each batch of product undergoes rigorous inspections before shipment, including appearance, content, viscosity, loss on drying, and residue on ignition, to ensure consistent, up-to-standard product quality, meeting the requirements of diverse applications.
Company Profile
Hebei Youlilai New Material Technology Co., Ltd is the first-class chemical and plastic raw materials dealer in the world. We are experts in research and production of detergent raw material coatings, UPR, polyurethane, water treatment products and solvents, etc. We also has TPU, TPE PLA, HDPE, LDPE PP and so on, our company is famous for high quality products and excellent services. Now we are stable supplying our products to more than 200 countries and regions which are located in the Middle East, South America, North America, Southeast Asia, Africa, Europe. We have both the expertiseand geographical advantage to optimize the local resources and provide you with competitiveproducts while minimizing your costs. With decades of experience in chemicals production and trade, We can also be your honest consultant for chemicals in China to provide additional assistance for your business development.
FAQ
1. Can HPMC still be used after it agglomerates?
If the lumps are slight and the solubility and use effect are not affected after crushing the lumps, it can be used normally. If the lumps are severe and there is still a hard core after crushing, or if insoluble matter appears after dissolution or the solution is turbid, it means that the product may have absorbed moisture and deteriorated. It is recommended to stop using it to avoid affecting the quality of the final product.
2. Can HPMCs of different viscosities be used interchangeably?
The appropriate viscosity should be determined based on the specific application scenario. For example, in construction putty powder, low-viscosity HPMC (e.g., 5,000-10,000 mPa·s) is suitable for applications requiring smooth construction, while high-viscosity HPMC (e.g., 100,000-200,000 mPa·s) is suitable for applications requiring high water retention and thickening properties. In pharmaceutical tablet adhesives, viscosity selection must match tablet hardness and disintegration requirements. If the appropriate viscosity is unclear, it is recommended to conduct a small-batch trial to confirm the effect before making an adjustment.
3. How can I resolve the issue of uneven dissolution of HPMC during use?
Uneven dissolution is usually caused by improper dissolution methods. It is recommended to first mix the HPMC powder with a small amount of water-soluble excipients (such as white sugar and ethylene glycol) and then slowly add it to the stirring water. Alternatively, the "cold water dispersion, warm water dissolution" method can be used. This means first dispersing the powder into a suspension in cold water, then heating it to 40-50°C to accelerate dissolution while maintaining stirring. This can effectively avoid agglomeration and achieve uniform dissolution.
4. What should I do if the packaging is damaged during transportation and a small amount of product leaks?
First, isolate the leaked product from intact products to avoid contamination. If the leakage is small and the product is not damp or contaminated with impurities, it can be collected and sealed for storage, preferably used in scenarios where purity requirements are not high (such as ordinary construction mortar). If the product is damp, contaminated with impurities, or the leakage is large, it is recommended to discard it to ensure the quality of use, and check whe ther the other packaging is intact to prevent further leakage.
5. Is HPMC a dangerous good? Are there any special safety requirements for its transportation and storage?
HPMC is not classified as a hazardous material and is not flammable, explosive, or corrosive. It can be transported and managed like a standard chemical raw material. However, care should be taken to prevent moisture absorption and agglomeration during storage to prevent it from absorbing moisture and affecting its use. It is recommended to wear a dust mask during handling to prevent respiratory discomfort caused by inhalation of excessive powder. Wash hands promptly after handling. There are no special toxicity or safety risks.
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