Chemicals & Applications

Dongying EastChem Co., Ltd manufactures and supplies 30 chemical products across six families — alkanes, alcohols and glycols, carbonate esters, alkenes and polymers, heterocyclics and hydrazine-class chemistry — backed by 19 years of production across three subsidiaries. This index maps every product and every technical article on this site, so you are never more than two clicks from the chemistry you need.

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Alkanes and Blowing Agents

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• N-pentane — 99%+ straight-chain pentane — EPS/XPS blowing agent, polymerization solvent, molecular-sieve desorption.

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• Isopentane — 2-methylbutane, 99%+ — fast-foaming blend component and ORC working fluid.

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• Cyclopentane — 95/99%+ — the PU rigid-foam blowing agent for refrigerator and construction insulation.

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• N-hexane — 60/80/99% grades — extraction and industrial solvent.

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• Isohexane — 2-methylpentane, 99%+ with ultra-low n-hexane — food-grade extraction and precision cleaning.

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• N-heptane — 99%+ — octane-rating reference fuel and analytical solvent.

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• N-octane — 99%+ — higher-boiling solvent and chromatography reference.

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• Isooctane — 2,2,4-trimethylpentane, 99.5%+ — RON 100 reference standard and octane booster.

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Alcohols and Glycols

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• Propylene Glycol — industrial and USP grades — low-toxicity glycol for food, pharma, resins and coolants.

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• Ethylene Glycol — 99.9% fiber grade — PET feedstock and antifreeze base.

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• Diethylene Glycol — 99.5%+ — gas dehydration, resins and humectant duty.

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• Ethanol — 75/95/99.5% grades — solvent, disinfectant base and fuel oxygenate.

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• Isopropanol — 99.9% — electronics cleaning and disinfection standard.

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• Butanediol (BDO) — 99.5%+ — THF, PBT and polyurethane feedstock.

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• 2-Ethylhexanol — 99.5%+ — C8 oxo alcohol for DOTP/plasticizer and acrylate chains.

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• 1-Hexanol — 99%+ — plasticizer and fragrance intermediate.

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• Neopentanediol (NPG) — 99%+ white flake — powder-coating polyester diol.

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Carbonate Esters

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• Dimethyl Carbonate — 99.95% battery grade — Li-electrolyte solvent and green reagent.

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• Ethyl Methyl Carbonate — 99.95% — low-temperature performance co-solvent for Li-ion cells.

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• Diethyl Carbonate — 99.9% — electrolyte co-solvent and ethylation reagent.

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• Propylene Carbonate — 99.9% — CO2 capture absorbent and polar aprotic solvent.

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Alkenes and Polymers

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• Styrene Monomer — 99.8% TBC-inhibited — PS/EPS/ABS/SBR feedstock.

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• Expandable Polystyrene — pentane-impregnated EPS beads for insulation, packaging and lost-foam casting.

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• Polypropylene — homopolymer, random and impact copolymer grades.

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• Polyethylene — LDPE/LLDPE/HDPE grades for film, molding and pipe.

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• Dicyclopentadiene — 95/98% — UPR modification, hydrocarbon resins and EPDM chemistry.

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Heterocyclics

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• Tetrahydrofuran (THF) — 99.95% inhibited — PVC adhesives, pharma synthesis, PTMEG monomer.

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• Epoxypropane (Propylene Oxide) — 99.9% — polyether polyol and propylene glycol feedstock.

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• Epichlorohydrin — 99.5%+ — epoxy resin and water-treatment resin intermediate.

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Hydrazine Class

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• Hydrazine Hydrate — 64/80/100% grades — boiler oxygen scavenger and synthesis intermediate.

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Technical Knowledge Base

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Blowing Agents, Foam and Insulation

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• Blend pentane ratios for EPS: process and seasonal guidance

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• How pentane blowing agents improve insulation performance

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• Pentane vs HFCs: the environmental case in numbers

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• Cyclopentane in the refrigeration industry

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• Cyclopentane: a game changer for refrigerator insulation

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• How refrigerants work: the principle explained

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• Refrigerant development trends

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• EPS: a versatile high-performance polymer

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• Expandable polystyrene: products and applications

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Plasticizers and Esters

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• DOTP: the non-phthalate plasticizer in depth

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• DOP: industrial supply guide and regulatory map

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• DOA: the cold-resistant plasticizer

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• MTBE: driving cleaner fuels

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• Butyl acetate: a high-performance solvent

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Glycols, Alcohols and Solvents

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• Ethylene glycol: production, properties and applications

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• Propylene glycol: the low-toxicity glycol

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• Triethylene glycol: gas dehydration and beyond

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• Glycerol: grades, markets and applications

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• Ethanol: grades, uses and quality control

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• 1-Propanol: properties and applications

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• Potassium hydroxide: caustic potash in depth

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• Related glycol guides

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• Methylal (DMM): introduction and uses

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Surfactants, Nutrition and Specialty Chemistry

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• SLES: premium performance

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• SLES: properties and formulation practice

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• Betaine: methyl donor for feed, food and cosmetics

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• Hydrogenated polydecene: cosmetic emollient and synthetic base oil

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• The versatile applications of salicylic acid

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• Melamine: resins, admixtures and flame retardants

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• Phthalic anhydride applications

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• Polyformaldehyde (PFO) introduction

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• Sodium percarbonate (SPC) supply

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• Tert-butanol introduction

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• DOA cold-flexibility guidance

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• Isopropyl alcohol for global export

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• Polyisobutylene (PIB) introduction

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• CO2-based polyether polyol for PU foam

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• Methanol: uses and supply

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Company News

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• Company updates and customer visits

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How to Buy

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Minimum order is one 20-foot container; samples dispatch within about 2 days; payment by T/T or L/C; every lot ships with a batch-specific COA, and mixed containers across families are routine. Contact our sales team or WhatsApp +86 188 5467 0769 / email info@dyeastchem.com.

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