KORKİMYA
KORKİMYA

Resources and Guides

Technical guides, definitions and application notes across chemistry families. Answers your questions and points you to the right product.

Acrylic resins and monomers

Guides on acrylic resins, methacrylic acid and related monomers: definitions, applications and product selection.

1 · All guides

Amines and amine derivatives

Guides on amine chemicals, their derivatives and industrial applications: definitions, uses and product selection.

2 · All guides

Silicone chemicals

Technical guides on silicone fluids, emulsions and fumed silica: dosage, applications and industry solutions.

3 · All guides

Solvents

Industrial solvent types, selection criteria and applications: polar/non-polar solvents and safe handling.

1 · All guides

Inorganic chemicals

Guides on inorganic chemicals, acids and bases: grade differences, applications and safe storage.

9 · All guides

Thermoplastic polymers

Guides on thermoplastic polymers and hydrocarbon resins: PE/PP selection, C5/C9 resins and applications.

2 · All guides

Surfactants

Guides on surfactants: anionic, nonionic and cationic surfactants, applications and selection.

2 · All guides

Raw material supply

Chemical raw material sourcing guides: import vs local stock, supplier selection criteria, KKDIK and Turkish SDS compliance, and sample plus CoA validation.

1 · All guides

Bio-based products and tall oil derivatives

Guides on the tall oil value chain: CTO, TOFA (180/185), distilled tall oil and the Ecosky-3103 bio-based rubber process oil — definitions, applications and sustainable supply.

13 · All guides

Tall oil fatty acids (TOFA)

Guides to the tall oil fatty acid (TOFA) family: TOFA 180 and TOFA 185 grades, fatty acid / rosin acid balance, alkyd resin, flotation, bitumen and metalworking applications, plus supply and quality validation.

24 · All guides

Latest articles

How to request a TOFA 185 sample: lab validation before you buyA TOFA 185 sample ships with a lot-specific Certificate of Analysis (CoA) and a Turkish Safety Data Sheet. We explain how to validate it in your own alkyd resin batch or dimer acid trial before committing to a purchase order.How to request a TOFA 180 sample and what to check in the lab firstWhat to know before requesting a TOFA 180 sample: which documents come with it, which values to check in your own lab, and how to move from a validated sample to a purchase order.Ecosky-3103 vs petroleum-based process oils: supply chain riskPetroleum-based process oils such as TDAE and MES come from crude oil, and most of the world's crude supply moves through a handful of maritime chokepoints, the largest being the Strait of Hormuz. Ecosky-3103 is made from tall oil, so it does not depend on that concentrated risk. We look at the data behind the 2026 disruption in the Strait of Hormuz and what it means for process oil supply.Choosing a TOFA supplier from Europe: specification, documentation and logisticsHow a European formulator selects a tall oil fatty acid (TOFA) supplier: which parameters to demand on the spec sheet, which documents to request, and how to plan bulk logistics.TOFA supplier in Türkiye: distiller or stockholder, KKDIK registration and local stockChoosing a TOFA supplier in Türkiye: the difference between a distiller and a stockholding supplier, KKDIK registration and the Turkish SDS requirement, TRY invoicing and terms, local stock versus import.What determines tall oil fatty acid (TOFA) prices: why every quote is taken freshTOFA has no list price. CTO feedstock availability, pulp output, grade purity, packaging and shipment mode, freight and FX: the real variables behind a quotation, explained.CAS 61790-12-3 (tall oil fatty acids): chemical identity, composition and specification guideWhat CAS 61790-12-3 covers, how the composition of tall oil fatty acids is defined, which ASTM methods sit behind each specification line, and what to expect on storage and documentation.TOFA vs oleic acid: origin, composition and where each one winsTOFA is a mixed fatty acid fraction from tall oil distillation; oleic acid is a mainly single-chain cut split from vegetable and animal fats. We compare origin, composition, colour and applications against real specification rows.TOFA vs DTO: what the rosin acid ceiling actually decidesTOFA and distilled tall oil (DTO) come off the same distillation train; where they part is the rosin acid ceiling. Max 2-3% in TOFA grades, max 30-40% in DTO grades. We explain what that means for alkyd colour, acid value and grade selection.
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