- - Technical Support Check if the supplier provides technical assistance, as HEC's usage can be complex.
- CAS (Chemical Abstracts Service) numbers are unique identifiers assigned to chemical substances, enabling accurate information retrieval in scientific research and databases. The CAS number 9004-62-0 specifically denotes hydroxyethyl cellulose, which is derived from cellulose, a natural polymer abundant in plant cell walls. The '9004' segment of the CAS number signifies that HEC falls under the category of Polymers and Resins, while the following digits '62-0' are unique to this particular compound.
- Do not touch the container tip to the eye, lid, or other skin.
(2) Film forming machine:
Due to its film-forming properties, HPMC can be used to manufacture coatings for tablets and capsules. This coating serves a variety of purposes, including improving appearance, masking taste, and protecting active ingredients from environmental factors.- Neben dem vielfältigen Einsatz in der Lebensmittelindustrie findet HPMC auch in vielen anderen Bereichen Anwendung. So z. B. in der Baustoffindustrie zur Regulierung der Fließeigenschaften, bei der Herstellung von Kosmetika wie Zahnpasta, Shampoo, Seife, Creme sowie Lotion und in der Pharmaindustrie als Bestandteil von Medikamenten.
Hydroxypropyl methyl cellulose is considered safe for all animal species. Setting a maximum content in complete diets is not considered necessary.
- In the personal care industry, HPMC is used in a wide range of products such as lotions, creams, shampoos, and toothpaste. The grade of HPMC used in personal care products is typically low in viscosity and provides a smooth and silky feel to the skin or hair. HPMC also helps stabilize emulsions, control rheology, and enhance the overall performance of the product.
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- One notable application of MHEC is in the formulation of tablets for the pharmaceutical industry
Common HPMC sources:
- In addition to its thickening and stabilizing properties, HEC also has a film-forming ability, which makes it an ideal ingredient for creating protective films on the skin or hair. This property is particularly useful in skincare products such as creams and lotions, where a protective barrier is needed to prevent moisture loss.
- Next, prepare a vessel filled with tepid water—water that is too hot can degrade the polymer, while cold water will not facilitate efficient wetting. It is recommended to use a temperature around 20°C to 25°C for optimal results. The quantity of water needed will depend on the desired concentration of the HPMC solution, but generally, using more water than you think is necessary will help in preventing clumps.
- Furthermore, HEC's non-toxic nature, biodegradability, and non-reactivity make it an environmentally friendly choice. Its ability to form clear solutions and its compatibility with both acidic and alkaline systems further enhance its utility.
- Now, sprinkle the HPMC slowly and evenly over the surface of the water while gently hand stirring or using a stirrer at low speed. The key here is to create a gradual introduction of the powder to the water without causing rapid agglomeration. A whisk or an impeller-type stirrer can work well for this purpose A whisk or an impeller-type stirrer can work well for this purpose
A whisk or an impeller-type stirrer can work well for this purpose A whisk or an impeller-type stirrer can work well for this purpose
how to dissolve hpmc in water.
- In addition to these factors, the geographical location of HPMC manufacturers and distributors can also impact its price. Shipping and transportation costs can vary depending on the distance between the manufacturer and the end-user, which can ultimately affect the overall price of HPMC.
- Furthermore, China's growing pharmaceutical and cosmetic industries have also contributed to the demand for HPMC. In pharmaceuticals, HPMC is used as a thickening agent, stabilizer, and binder in tablet formulations, while in cosmetics, it is used in products such as creams, lotions, and shampoos for its emulsifying and thickening properties.
- Conclusion
- HPMC Ltd, also known as Hydroxypropyl Methylcellulose Limited, is a leading manufacturer and supplier of cellulose ethers. The company specializes in producing high-quality HPMC products that are widely used in various industries such as construction, pharmaceuticals, cosmetics, and food.
- Understanding the Purchase of HPMC A Comprehensive Guide
Pharmaceuticals
- China's Redispersible Polymer Powder A Game-Changer in Construction
- In conclusion, building coating adhesive HPMC is a versatile and essential ingredient in the construction industry. Its excellent binding, thickening, and film-forming properties make it suitable for use in a wide range of applications, including paints, coatings, adhesives, and sealants. By using HPMC in building coatings, contractors and homeowners can achieve improved performance, cost savings, ease of use, and environmental friendliness.
- Understanding the Role of HPMC in Building Coating Adhesives
- Stability: HPMC capsules are exceptionally stable over a wide range of temperatures and humidity levels, making them suitable for use in a variety of climates without the risk of degradation often associated with gelatin capsules.
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- Each of these manufacturers employs unique production techniques, including spray-drying and emulsion polymerization, to create redispersible polymer powders with specific properties. They invest heavily in research and development to innovate, improve efficiency, and cater to the ever-changing demands of the construction and coating industries.
Data on chronic toxicity and carcinogenicity are available for microcrystalline cellulose (E 460), methyl cellulose (E 461) hydroxypropyl cellulose (E 463), HPMC (E 464) and sodium carboxymethyl cellulose (E 466). Some studies were unfit for evaluation due to methodological shortcomings. In the only relevant study, the dietary administration of even high doses of microcrystalline cellulose (E 460) (30%, 15,000 mg/kg bw) to rats for 72 weeks did not affect survival, feed efficiency or haematology. Apart from some dystrophic calcification in renal tubules, no other relevant lesions were noted and tumour incidence did not differ with that of controls. Several studies were conducted in rats with methyl cellulose (E 461) via feed or drinking water or by gavage at concentrations up to 5% (2,500 mg methyl cellulose/kg bw per day) and for up to 2 years. For all examined parameters, no adverse effects were reported and also the observed tumours did not differ in type and number in treated and control groups. In the only identified study, the daily dosing of male and female rats (0, 1,500, 3,000 or 6,000 mg hydroxypropyl cellulose/kg bw) via gavage for 6 months did not cause adverse effects (including carcinogenicity) apart from a decrease in body weight in high-dosed rats (statistically significant in females only). Apart from a decrease in body weights of high-dosed males, no other significant adverse findings were reported and there was no indication of a carcinogenic effect in rats of either sex dietary exposed to HPMC (E 464) up to 20% (10,000 mg/kg bw per day) for 1 year. Carboxy methylcellulose (E 466) was tested in mice and rats at dosages of 0, 10,000 or 100,000 mg/kg diet (equivalent to 0, 1,500 or 15,000 mg/kg bw per day for mice and to 0, 500 or 5,000 mg/kg bw per day for rats) for up to 104 weeks. Despite the increase in feed intake, a treatment related decrease in body weight was noted at the end of the treatment. Histological examination revealed no intestinal abnormality or evidence of the passage of the additive across the intestinal wall in either species and the tumour incidences were comparable among groups.
- Hydroxyethyl cellulose (HEC), a water-soluble polymer derived from cellulose, is widely utilized in various industries due to its unique properties. Its solubility in different solvents, particularly ethanol, plays a crucial role in determining its application and performance characteristics.
- The degree of substitution of HPMC also plays a significant role in determining its gelation temperature. Higher degrees of substitution result in stronger hydrogen bonding interactions between polymer chains, which can lower the gelation temperature. Additionally, the concentration of HPMC in solution can affect gelation temperature, with higher concentrations generally leading to lower gelation temperatures due to increased polymer-polymer interactions.