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Home » News » DOP Dioctyl Phthalate (CAS 117-81-7) | PVC Plasticizer | Dongbo Factory Supply

DOP Dioctyl Phthalate (CAS 117-81-7) | PVC Plasticizer | Dongbo Factory Supply

Views: 0     Author: Site Editor     Publish Time: 2026-06-04      Origin: Site

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Dioctyl Phthalate (DOP), also known as bis(2-ethylhexyl) phthalate (CAS 117-81-7), is the benchmark general-purpose PVC plasticizer that has dominated the flexible PVC industry for decades. As a phthalate-based environmental plasticizer produced under stringent REACH compliant protocols, DOP delivers unmatched compatibility with polyvinyl chloride (PVC) resins, excellent plasticizing efficiency, and reliable low-temperature flexibility. Our DOP is manufactured by Ningbo Dongbo New Energy Co., Ltd. using advanced esterification technology that ensures consistent ester content >=99.5% and acid value <=0.01 mgKOH/g -- specifications that exceed industry standards for PVC additives used in construction, automotive, and consumer goods. With low migration characteristics critical for demanding PVC compounding, this DOP grade is suitable for applications ranging from wire and cable insulation to synthetic leather and flooring materials.

The technical excellence of our DOP PVC plasticizer stems from precision manufacturing and rigorous quality assurance. Each batch undergoes gas chromatography (GC) analysis to verify ester purity, Karl Fischer titration for water content, and platinum-cobalt colorimetric testing to ensure a clear, water-white appearance (Pt-Co <=30). The low acid value (<=0.01 mgKOH/g) minimizes corrosion risk in processing equipment, while the high flash point (>=210 deg C) provides safe handling during high-temperature PVC compounding operations. Our DOP exhibits a density of 0.983-0.987 g/cm^3 at 20 deg C, a refractive index of 1.485-1.487, and excellent heat stability with weight loss <=0.1% after thermal aging. These properties make it the preferred PVC additive for manufacturers seeking consistent, reliable plasticizing performance across large-scale production runs.

DOP serves as the foundational PVC plasticizer across numerous industries. In wire and cable manufacturing, it provides the flexibility and electrical insulation properties required for building wiring, automotive harnesses, and appliance cords. Flooring manufacturers rely on DOP for producing durable, resilient vinyl flooring with excellent wear resistance. The synthetic leather industry uses DOP to achieve the soft, leather-like hand feel demanded by furniture, automotive interior, and fashion accessory markets. Additional applications include flexible hoses and tubing, coated fabrics, gaskets and seals, adhesive and sealant formulations, and general-purpose flexible PVC films and sheets. For low migration food packaging applications, our REACH compliant DOP grade meets the necessary purity requirements when used within applicable regulatory frameworks, making it a versatile choice for packaging converters seeking a cost-effective PVC plasticizer solution.

Ningbo Dongbo New Energy operates three strategically located overseas warehouses to serve global markets with fast, reliable delivery. Our Hamburg, Germany warehouse covers the European Union with full REACH, RoHS, and EU 10/2011 compliance, supporting SEPA bank transfers for seamless EU transactions. The Los Angeles, USA warehouse ensures TSCA, CPSIA, and California Proposition 65 compliant inventory is always available for North American customers with short lead times. For the growing Southeast Asian market, our Singapore distribution hub provides ASEAN-compliant products with regional logistics support. We accept three flexible payment methods: T/T (telegraphic transfer) for bulk orders, L/C (letter of credit) at sight for long-term contract security, and PayPal for sample orders and small-volume trial purchases. This tri-regional infrastructure means most orders ship from local stock within 3-7 business days, significantly reducing your import duties, freight costs, and customs clearance time.

As an ISO 9001:2015 certified manufacturer established in 2010, Ningbo Dongbo New Energy Co., Ltd. offers direct factory pricing with no intermediary markups on all plasticizer products. Our production facility near Shanghai Port ensures competitive ocean freight rates and efficient container loading. We provide free samples (up to 1 kg) for laboratory evaluation -- simply share your DHL/FedEx/UPS account number and we ship within 48 hours. OEM and custom packaging services are available: choose from 200 kg iron drums, 1000 kg IBC totes, 23 MT flexitanks, or your own branded packaging specifications. Minimum order quantities start as low as 1 MT for trial orders, scaling to 100+ MT monthly supply agreements. Contact Ms. Alice Yang at alice@dobonewenergy.com or WhatsApp +86-15824288686 to request your free sample, discuss technical specifications, or receive a tailored quotation today.

Technical Parameters

Parameter

Specification

Product Name

Dioctyl Phthalate (DOP)

CAS Number

117-81-7

Molecular Formula

C24H38O4

Molecular Weight

390.56 g/mol

Ester Content

>=99.5%

Acid Value

<=0.01 mgKOH/g

Density (20 deg C)

0.983-0.987 g/cm^3

Flash Point (Open Cup)

>=210 deg C

Heat Loss

<=0.1%

Color (Pt-Co)

<=30

Refractive Index (20 deg C)

1.485-1.487

Water Content

<=0.1%

Volume Resistivity

>=1x10⁹ Ohm·m

Packaging Options

200 kg drum / 1000 kg IBC / 23 MT flexitank

Shelf Life

24 months in sealed original packaging