Introduction to Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Hydroxypropyl Methylcellulose (HPMC), na ang Chinese na pangalan ay hydroxypropyl methylcellulose, ay isang semi-synthetic, non-ionic cellulose eter na nakuha sa pamamagitan ng chemically modifying natural cellulose. Ang puting pulbos na ito ay maaaring bumuo ng isang transparent na malapot na solusyon pagkatapos matunaw sa tubig. Ito ay may mahusay na pampalapot, pagpapanatili ng tubig, katatagan at mga katangian ng pagbuo ng pelikula. Ito ay isang kailangang-kailangan na multifunctional additive sa maraming larangan tulad ng konstruksiyon.

Characteristics and advantages of Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Napakahusay na solubility sa tubig: Maaari itong mabilis na matunaw sa malamig na tubig upang bumuo ng isang malinaw at matatag na solusyon.

Mahusay na pampalapot at kakayahan sa pagpapanatili ng tubig: Dagdagan ang lagkit ng materyal, epektibong bawasan ang pagsingaw ng tubig, at pagbutihin ang kahusayan sa trabaho.

Magandang katatagan: Ito ay may mahusay na katatagan sa mga acid, alkalis, at mga asin, at angkop para sa malawak na hanay ng mga halaga ng pH.

Mga epekto sa pagbuo ng pelikula at proteksyon: Pagkatapos matuyo, ito ay bumubuo ng isang matigas at transparent na pelikula upang protektahan ang substrate at maiwasan ang pagtagos ng tubig at pagsingaw.

Non-toxic at hindi nakakairita: Ito ay may mahusay na biocompatibility at angkop para sa mga larangan ng medisina at pagkain.

Pagsasaayos: Sa pamamagitan ng pagbabago ng antas ng pagpapalit at molekular na timbang, ang pagganap nito ay maaaring iakma upang matugunan ang iba't ibang mga kinakailangan sa aplikasyon.

Specifications of Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Hydroxypropyl Methyl Cellulose (HPMC)– Mga Detalye ng Item

Basic Info

Chemical Call: Hydroxypropyl Methyl Cellulose
Numero ng CAS: 9004-65-3
Molecular Formula: C₈H₁₄O₄ (repeating device, varies by replacement).
Hitsura: Puti hanggang beige na free-flowing powder.
Ang amoy: Walang amoy.

Trick Physical and Chemical Features

HPMC dissolves quickly in cold water to form a clear, thick remedy. It does not dissolve in hot water above its gelation temperature (karaniwang 50– 90 ° C, depending upon quality). The product is non-ionic and secure over a broad pH variety (3– 11). It shows excellent film-forming capacity, pagpapanatili ng tubig, and thickening efficiency.

Viscosity varies by item grade. Usual thickness arrays include 5 mPa · sa 100,000 mPa · s (gauged as a 2% solusyon sa 20 ° C). Substitution degrees are managed to satisfy details application needs:.
– Nilalaman ng methoxy: 19%– 30%.
– Hydroxypropoxy na nilalaman sa web: 4%– 32%.

Purity and Quality Requirements

HPMC fulfills significant pharmacopeial standards, including USP-NF, EP, at JP, when made use of in pharmaceutical applications. For industrial or building usages, it abides by relevant technical specifications. Heavy steels are limited to ≤ 20 ppm. Recurring solvents like methanol and isopropanol remain listed below safety and security limits. Microbial restrictions adhere to industry norms (hal., complete aerobic matter ≤ 100 CFU/g).

Mga Karaniwang Aplikasyon

This raw material is widely made use of in:.
– Pharmaceuticals: As a binder, layer representative, o controlled-release matrix sa mga tablet computer.
– Gusali: In cement-based products for enhanced workability and water retention.
– Pagkain: As a thickener or stabilizer (where allowed).
– Individual treatment: In hair shampoos, mga lotion, and tooth paste for texture control.

Storage needs to remain in an amazing, dry location in secured containers to prevent moisture uptake. Service life is usually 24 months under appropriate problems.

Applications of Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Mga aplikasyon ng Hydroxypropyl Methyl Cellulose (HPMC)– CAS 9004-65-3

Construction and Building Products

HPMC is commonly made use of in cement-based products like tile adhesives, self-leveling compounds, at mga plaster. It enhances workability by retaining water throughout the healing procedure. This aids prevent cracks and makes certain strong bonding. Building contractors rely on HPMC for constant performance in dry-mix mortars.

Pharmaceuticals

In medicine, HPMC work as a binder, kinatawan ng film-coating, o controlled-release matrix sa mga tablet computer. It liquifies gradually in the digestive system system, permitting drugs to launch continuously over time. The compound is safe and approved for use in oral medicines worldwide.

Industriya ng Pagkain

HPMC serves as a thickener, emulsifier, and stabilizer in lots of refined foods. It assists keep appearance and protects against component splitting up in items like sauces, gelato, and gluten-free baked products. Regulative agencies acknowledge it as risk-free for consumption under particular use degrees.

Mga Pintura at Patong

Repaint producers include HPMC to water-based formulations to regulate thickness and enhance application. It stops pigments from working out and offers a smooth surface. The additive additionally boosts open time, allowing painters function much longer prior to the covering dries out.

Cosmetics and Personal Treatment

Sa mga lotion, mga shampoo, and toothpaste, HPMC supplies structure and stability. It produces a pleasant feeling on the skin or hair without triggering irritability. Its ability to form clear gels makes it suitable for clear cosmetic items.

Agriculture

HPMC is utilized in chemical and fertilizer formulas to improve attachment to plant surface areas. It reduces active component launch, boosting performance and decreasing runoff. Farmers take advantage of much better protection and longer-lasting results.

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5 FAQs of Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Frequently Asked Questions About Hydroxypropyl Methyl Cellulose (HPMC)

Ano ang HPMC?

Ang HPMC ay kumakatawan sa Hydroxypropyl Methyl Cellulose. It is a white or off-white powder made from natural cellulose. This chemical raw material is widely used in construction, mga pharmaceutical, pagkain, at mga pampaganda. Ito ay natutunaw sa malamig na tubig at bumubuo ng isang malinaw, malapot na solusyon.

What is the CAS number for HPMC?

The CAS number for Hydroxypropyl Methyl Cellulose is 9004-65-3. This unique identifier helps confirm you are using the correct substance in your application or formulation.

What are the main uses of HPMC?

Sa pagtatayo, HPMC works as a thickener and water-retention agent in tile adhesives, mga plaster, at self-leveling compounds. Sa pharma, it acts as a binder or coating in tablets. Food makers use it as a stabilizer or emulsifier. Cosmetic products use it to improve texture and consistency.

Is HPMC safe to use?

Oo. HPMC is non-toxic and approved for use in many industries. Regulatory bodies like the FDA and EFSA have reviewed its safety. Always follow handling instructions and use proper protective gear when working with fine powders.

Paano dapat iimbak ang HPMC?

Itabi ang HPMC sa malamig, tuyong lugar na malayo sa kahalumigmigan. Keep the container tightly closed. Exposure to humidity can cause clumping or reduce performance. Gumamit ng malinis, dry tools when measuring or transferring the powder to avoid contamination.