Introduction to Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Hydroxypropylmethylcellulose (HPMC), hvis kinesiske navn er hydroxypropylmethylcellulose, er en semisyntetisk, ikke-ionisk celluloseether opnået ved kemisk modificering af naturlig cellulose. Dette hvide pulver kan danne en gennemsigtig viskøs opløsning efter opløsning i vand. Den har fremragende fortykkelse, vandophobning, stabilitet og filmdannende egenskaber. Det er et uundværligt multifunktionelt additiv inden for mange områder, såsom byggeri.

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

Fremragende vandopløselighed: Det kan hurtigt opløses i koldt vand for at danne en klar og stabil opløsning.

Effektiv fortykkelse og vandretentionsevne: Forøg materialets viskositet, reducerer effektivt vandfordampningen, og forbedre arbejdseffektiviteten.

God stabilitet: Det har god stabilitet over for syrer, alkalier, og salte, og er velegnet til en lang række pH-værdier.

Filmdannende og beskyttende effekter: Efter tørring, det danner en sej og gennemsigtig film for at beskytte underlaget og forhindre vandindtrængning og fordampning.

Ikke-giftig og ikke-irriterende: Det har god biokompatibilitet og er velegnet til medicin og fødevarer.

Justerbarhed: Ved at ændre graden af ​​substitution og molekylvægt, dens ydeevne kan justeres for at opfylde forskellige applikationskrav.

Specifications of Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Hydroxypropylmethylcellulose (HPMC)– Produktspecifikationer

Standard Information

CAS nummer: 9004-65-3
Kemisk navn: Hydroxypropylmethylcellulose
Molekylær formel: C8H16O6 (stands for the duplicating system; actual polymer varies by grade).
Udseende: Hvid til råhvid, fritflydende pulver.

Trick Physical and Chemical Residences

HPMC is a non-ionic cellulose ether made from natural cellulose. It liquifies easily in chilly water yet does not dissolve in hot water over its gelation temperature level. The product creates clear, anemic services with excellent film-forming ability.

Typical viscosity varieties from 5 mPa · s til 100,000 mPa · s (fastlagt kl 2% koncentration, 20 °C), relying on the grade. Wetness content stays below 5% (efter vægt). pH af a 2% remedy normally falls in between 4.0 og 8.0.

Pureness and Top Quality Standards

This HPMC fulfills pharmacopeial criteria such as USP-NF, EP, and JP when made use of in pharmaceutical applications. For industrial or building uses, it complies with appropriate technological requirements. Hefty metals are kept under 10 ppm. Residue on ignition stays below 1.5%. Microbial limits comply with basic guidelines: overall cardio count ≤ 100 CFU/g, yeast and mold and mildew ≤ 10 CFU/g, and absence of E. coli og Salmonella.

Opbevaring og håndtering

Shop HPMC i en fantastisk, tørt sted væk fra direkte solskin. Keep containers firmly near protect against wetness absorption. Use basic commercial health techniques when handling. Prevent creating dirt.

Almindelige applikationer

HPMC is commonly made use of in pharmaceuticals as a binder, fortykningsmiddel, or controlled-release agent in tablets. I bygning, it boosts workability and water retention in cement-based items like tile adhesives and provides. It also serves as a stabilizer in food, kosmetik, and paints.

Applications of Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Anvendelser af hydroxypropylmethylcellulose (HPMC) CAS 9004-65-3

Bygge- og byggematerialer

HPMC is commonly used in dry-mix mortars, keramiske fliser klæbemidler, og selvnivellerende forbindelser. It boosts water retention so cement can completely hydrate. This leads to more powerful bonds and much better workability. Builders also depend on HPMC to reduce drooping and prolong open time throughout application.

Narkotika

I tabletter og piller, HPMC fungere som bindemiddel, filmovertræksmiddel, eller matrix med kontrolleret frigivelse. It liquifies gradually in the digestive tract, aiding active ingredients launch at the appropriate rate. Because it is non-toxic and steady, regulative companies approve it for dental use worldwide.

Madmarked

HPMC virker som fortykningsmiddel, emulgator, and stabilizer in numerous refined foods. You can locate it in sauces, flødeis, og glutenfri bagværk. It helps keep appearance and avoids separation without changing taste.

Personlig behandling og kosmetik

Shampoos, lotioner, and tooth pastes frequently consist of HPMC. It gives products a smooth feel and keeps ingredients equally combined. Its film-forming capacity additionally aids skincare products remain on the skin much longer.

Maling og belægninger

Suppliers add HPMC to water-based paints to control thickness and stop splattering. It increases pigment suspension and makes brushing easier. The outcome is an uniform do with less brush marks.

Landbrug

In chemical and fertilizer formulations, HPMC works as a carrier and adhesive. It aids active components adhere to plant surfaces and slows down drainage after rain. This increases efficiency and reduces waste.

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5 FAQs of Hydroxypropyl Methyl Cellulose HPMC CAS 9004 65 3

Ofte stillede spørgsmål om hydroxypropylmethylcellulose (HPMC)

Hvad er HPMC?

HPMC står for Hydroxypropyl Methyl Cellulose. It is a white to off-white powder made from plant cellulose. People use it in many products like medicines, mad, og byggematerialer. It dissolves in cold water but not in hot water. This makes it useful for controlling texture and thickness.

Er HPMC sikker at bruge?

Ja, HPMC er sikkert. Regulatory groups like the FDA and EFSA have approved it for use in food and drugs. Det passerer gennem kroppen uden at blive absorberet. That means it does not cause harm when used as directed. Følg altid sikkerhedsinstruktionerne på produktetiketten.

What are common uses of HPMC?

HPMC fungerer som et fortykningsmiddel, bindemiddel, og filmdanner. I byggeriet, it helps tile adhesives and plasters stay smooth and work well. I lægemidler, it coats pills so they dissolve at the right time. I mad, it adds texture without changing taste. You can also find it in eye drops and cosmetics.

Hvordan skal HPMC opbevares?

Opbevar HPMC på køl, tørt sted. Hold det væk fra fugt og direkte sollys. Use a tightly closed container to stop clumping. Hvis pulveret bliver vådt, it may lose its quality. Tjek udløbsdatoen før brug.

Kan HPMC erstatte andre fortykningsmidler?

HPMC can often replace other cellulose-based thickeners like methyl cellulose or carboxymethyl cellulose. But results may vary based on the application. Test small batches first to make sure performance meets your needs. Its unique mix of solubility and stability makes it a strong choice in many cases.