Global - Premier Propylene Glycol: Ing Multifunctional Organic Compound

Pisikal at Kemikal a Katangian

Itsura at bau: Ing propylene glycol lulual ya bilang alang kule, malino, ampo malagkit a likidu. Atin yang malating tamis a lasa at halus alang bau, inya sa't masanting ya para kareng aplikasyun nung nukarin kailangan ing neutral a sensory profile.

Solubility: Atin yang masanting a miscibility, agyu nang isamut keng danum, ethanol, ether, acetone, chloroform, ampo reng aliwang organic solvents. Ing kayang katangian papalyarian na ing pamagobra na bilang epektibung solvent ampo emulsifier kareng miyayaliwang formulasyun.

Key Physical Constants: Atin yang molar mass a 76.09 g/mol, ing propylene glycol atin yang density a 1.036 g/cm3 keng 25°C, na mas siksik kesa keng danum. Ing melting point na - 59°C, inya sa’t manatili yang likidu king maragul a temperatura. Ing boiling point makatalakad ya keng 188.2°C keng standard pressure, papakit na ing katatagan na keng normal a temperatura ning kapaligiran. Ing flash point medyu matas ya, mga 99°C (saradu - tasa), babawasan na ing panganib ning aksidenting pamanyilab.

Chemical Reactivity: Bilang diol, ing propylene glycol malyari yang makiabe kareng miyayaliwang chemical reactions a tipikal kareng grupung alcohol. Malyari yang gawang ester nung maki-react ya kareng carboxylic acids, na importanti keng pamaglalang kareng dakal a industrial ampo consumer products. Dagdag pa, malyari yang dumalan kareng reaksyun ning dehydration lalam ning partikular a kundisyun, a magdalang pamaglalang kareng intramolecular cyclic ethers o intermolecular polymers.

Application Areas

Industriya ning Pamangan at Inuman: Ing propylene glycol atin yang dakal a obra keng sector ayni. Magsilbi yang humectant, sasaup yang manatili ing moisture kareng produktung pamangan antimo reng baked goods, confectioneries, ampo dairy items, inya sa’t mipalawig ing karelang shelf - life at mipapanatili ing karelang texture. Anting solvent, magagamit ya para lasawan la reng lasa, kule, ampo preservatives, para siguraduan ing pare-pareung pamikalat da reng formulasyun ning pamangan ampo inuman. Alimbawa, keraklan mayayakit ya kareng liquid flavorings para kareng soft drinks ampo bilang carrier para kareng essential oils kareng produktung pamangan. Me-apruba ya murin antimong pamangan a karagdagan (E1520) king Pisanmetung a Europa, at keraklan kikilalanan deng ligtas (GRAS) ning US Food and Drug Administration (FDA) nung gamitan ya kilub ning makatuldung limitasyun.

Industriya ning Parmasyutika: keng parmasyutika, ing propylene glycol atin yang maragul a papil. Maralas yang magagamit antimong solvent kareng panulu a e madaling matunaw king danum, a magpadali king karelang pamaglalang kareng oral, injectable, ampong topical a panulu. Alimbawa, kareng dakal a liquid oral a panulu, ing propylene glycol sasaup yang maglaso kareng aktibung sangkap ning panulu, para makasiguradung ustu ing pamag-dose. kareng topical a formula antimo reng cream ampo ointment, gagana ya bilang humectant ampo penetration enhancer, a magpasanting keng pamagsipsip ning balat kareng panulu. Atin ya namang mapilan a antibacterial ampong antifungal a katangian, a makaambag king pamagpreserba kareng produktung panulu.

Cosmetics ampo Personal Care: Ing propylene glycol metung yang sangkap keng dakal a cosmetics ampo personal care products. kareng skincare products antimo reng moisturizer, serum, ampo cleansers, gagawan neng humectant, kukunan ne ing danum ibat keng angin ampo itali ne keng balat, inya sa’t manatili yang hydrated ing balat. Ing kayang solvent properties papalyarian na ing pamag dissolve kareng miyayaliwang active ingredients ampo fragrances, para makasiguradung parehu ing pamikalat da kareng produktu. Magagamit ya naman kareng hair care products antimo reng shampoo ampo conditioner para mas masanting ing karelang texture ampo makasaup keng pamagdeliver kareng kapakibatan a sangkap keng hair shaft. keng nail polish, ing propylene glycol gagana ya bilang plasticizer, para e ya maging brittle ing polish ampo e ya madaling masira.

Industrial Applications: Ing propylene glycol metung yang maulagang sangkap keng pamaglalang kareng miyayaliwang materyales pang-industriya. Metung yang susi keng pamaglalang kareng unsaturated polyester resins, na maralas dang gagamitan keng pamaglalang kareng fiberglass - reinforced plastics. Deng plastic a reni atin lang aplikasyun kareng industriya antimo ing automotive, construction, ampo marine, pauli ning matas dang strength - to - weight ratio ampo corrosion resistance. keng automotive industry, propylene glycol - based antifreeze ampo coolant formulations ing gagamitan da para i-regulate ing temperatura da reng makina, para aiwasan ing sobrang pali ampo pamagyelo. Magsilbi ya namang solvent ampo carrier kareng coatings, tinta, ampo adhesives, para mas masanting ing karelang performance ampo application properties.

Paralan ning Pamagsadya

Epoxy Propane Hydrolysis: Metung ya ini kareng peka karaniwan a paralan ning industria. Kening prosesung ayni, ing epoxy propane (propylene oxide) maki react ya keng danum keng presensya ning catalyst. Ing reaksyun malyari yang malyari keng miyayaliwang kundisyun. keng direktang paralan ning danum - hydration, matas a temperatura (mga 150 - 200°C) ampo pressure (0.98 - 2.94 MPa) ing gagamitan, a maki water - to - epoxy propane molar ratio keraklan 20. Agyang ing conversion rate ning epoxy propane keng propylene glycol miras yang 85%, deng mapilan a polyprolypropene produktu la megawa ya. Ing metung pang paralan yapin ing acid - catalyzed hydrolysis, nung nu ing ditak a acid catalyst (antimo ing sulfuric acid) miragdagan ya. Ing reaksyun gagawan de keng mas mababang temperatura (50 - 70°C), at ing resulta kailangan yang i-neutralize ampo i-purify kapamilatan da reng prosesu antimo ing vacuum distillation para mika high-purity propylene glycol.

Glycerol Catalytic Hydrogenolysis: Malyari yang gamitan ing glycerol antimong raw material ba yang gawang propylene glycol. Kening paralan ayni, ing glycerol mumuna yang dumalan keng protonation da reng kayang hydroxyl groups, kaybat ing intramolecular dehydration para gawang intermediate a produktu antimo reng enol ampo reng keto - aldehyde tautomers. Deting intermediate a produktu kaybat dumalan la keng hydrogenation keng presensya ning catalyst (antimo ing copper - based catalyst), at ing katataulian magbunga yang 1,2 - propylene glycol. Ing paralan ayni atin yang advantage keng pamangamit keng renewable feedstock (glycerol), na malyaring akwa kareng pikuanan antimo ing biodiesel production.

Paralan ning Biotechnological: Deng mapilan a microorganisms, antimo reng mapilan a strain da reng bacteria ampong yeast, malyari lang i-engineer ba lang gawang propylene glycol kapamilatan ning prosesu ning pamag-ferment. Alimbawa, kapamilatan ning pamagbayu keng genetically Escherichia coli o Klebsiella pneumoniae, maliari lang gawang propylene glycol deng asukal (antimo ing glucose) o glycerol. Ing biotechnological a paralan mas maka-kapaligiran ya kumpara kareng tradisyunal a paralan ning kemikal, uling gagana ya keng mas banayad a kundisyun ampo malyari yang gumamit renewable carbon sources. Makanyan man, ing produktibidad ampo ing gastus - epektibidad da reng paralan a reni ila pa mu rin ing lugal ning aktibung pamanyaliksik at pamagpabuti.

Ingatan

Pamag-isip king kalusugan: Agyang ing propylene glycol keraklan ligtas yang gamitan keng pamangan, parmasyutika, ampo cosmetics kilub ning aprubadung limitasyun, ing matas a lebel ning pamaglaso o pamaglaso malyari yang mika negatibong epektu keng kalusugan. Ing pamangan dakal malyari yang magdalang sintomas antimo ing pamanalkus, pamanalkus, ampo pamanalkus. keng grabing kasu, malyari yang maging sangkan ning metabolic acidosis, metung a kondisyun nung nukarin ing katawan titipun yang masyadung acid. Ing pamakipag-ugnayan keng balat keng concentrated propylene glycol malyari yang maging sangkan ning iritasyun kareng mapilan a indibidwal, lalu na kareng ating sensitibong balat. Ing makabang o paulit-ulit a pamaglaso keng balat dapat iwasan. Nung gamitan ya keng industrial a lugal, kailangan ing masaleseng bentilasyon para aiwasan ing pamangisnawa kareng propylene glycol vapors, uling ing matas a lebel ning pamangisnawa malyari yang maging sangkan ning respiratory discomfort.

Peligro ning Sunog at Pamanyabog: Ing propylene glycol malyari yang masilab, agyang atin yang matas a flash point. Deng singaw na malyari lang gawang explosive mixtures keng angin lalam ning mapilan a kundisyun. Deng lugal a pipagtipunan at pipag-abala dapat lang ilako kareng makabuklat a api, kislap, at aliwa pang panibatan ning ignition. Deng fire- resistant storage containers ampo deng karapatdapat a fire- suppression equipment dapat atyu la kareng lugal nung nukarin ya makalage o magagamit ing propylene glycol.
Epekto keng Kapaligiran: Kabang ing propylene glycol biodegradable ya, ing maragul a pamagluwal keng kapaligiran, lalu na keng danuman, malyari ya pa muring mika epektu. Kareng sistemang aquatic, malyari yang kumang oxygen kabang mabubuluk ya, a malyaring makaapektu kareng bye king danum. Uli na niti, dapat ing masaleseng pamaniakup king basura at pamag-containment dapat mika-ayus ban aiwasan ing e makontrol a pamagluwal ning propylene glycol king kapaligiran.

Detalyadu

Quality Control Sheet