To request a TOFA 185 sample, you contact KORKİMYA and state your target application, for example alkyd resin production or a dimer acid/polyamide trial. In return you receive a sample that is traceable to a lot number and documented with its own Certificate of Analysis (CoA) and Turkish Safety Data Sheet (SDS). Testing this sample in your own lab, for example in an alkyd resin batch, before placing a purchase order lets you screen out an off-spec or lot-to-lot inconsistent material before you commit to it.

How do you request a TOFA 185 sample?

To ask KORKİMYA for a TOFA 185 sample, state the product name and your target application (alkyd resin, dimer acid/polyamide, ink, adhesive). KORKİMYA works out a sample quantity and delivery method with you based on your trial; because sample size and delivery time vary by product and request, ask for these details when you request the sample.

What documentation ships with the sample?

  • Lot-specific Certificate of Analysis (CoA): shows the measured acid value, iodine value, rosin acid and unsaponifiable results for the lot the sample came from.
  • Turkish Safety Data Sheet (SDS/GBF): handling, storage and personal protective equipment information.
  • KKDIK registration status: confirmation that the product meets Turkey's chemical registration requirement.
  • Lot/batch number: traceability that ties a future purchase order to the same quality record as the sample.

Lab checklist for when the sample arrives

Comparing the CoA results against your own measurement once the sample arrives means your sourcing decision rests on your own data rather than a single document. Key parameters to check for TOFA 185:

  • Acid value (ASTM D1980): should be min. 185 mg KOH/g; this sets the free fatty acid content and therefore the stoichiometry of your alkyd resin or dimer acid reaction.
  • Iodine value (ASTM D5768): should be min. 150; this shows the unsaturation needed for the oxidative drying of alkyd resins and for dimerization in dimer acid production.
  • Rosin acid content (ASTM D1240): should be max. 2%; values above this limit can cause yellowing and color shift during esterification.
  • Unsaponifiable matter (ASTM D1065): should be max. 4%; a low value affects resin clarity and the amount of unreacted residue.
  • Appearance: a light yellow to amber liquid; compare the sample's color against the CoA for the lot.

Once you have verified these four parameters in your own lab, run the sample directly in your target application, for example a small-scale alkyd resin batch or a dimer acid trial, to see how it performs in your own formulation.

BİO BAZLI ÜRÜNLERTall Oil Fatty Acids 185 (TOFA)Request a TOFA 185 sample from KORKİMYA to validate it in your alkyd resin, dimer acid or polyamide trial before you buy.

Why documentation and consistency matter more than the lowest unit price

In alkyd resin production, the color, viscosity and drying performance of the finished batch depend on the consistency of the fatty acid used. A TOFA 185 whose acid value or rosin acid content drifts from lot to lot means recalculating your recipe and a production deviation. For a first order, looking for a lot that is documented with a CoA and in spec, rather than the lowest unit price, means less rework and a more predictable production process over time. If you are still weighing TOFA 185 against TOFA 180, the "TOFA 185 vs TOFA 180" comparison lays out both grades' specifications side by side.

Safe handling and storage

TOFA 185 is a non-flammable but fatty-acid-type liquid; it can cause irritation on skin and eye contact, and heating it to high temperatures can generate fatty acid vapor/fumes. Use chemical-resistant gloves and eye protection, provide ventilation during heated transfers, and follow the product's current Safety Data Sheet (SDS).

A sample may arrive in a small container, but the same storage principles apply as for bulk shipments.

  • Store at 20–40 °C in closed containers, protected from direct sunlight and moisture.
  • As an unsaturated fatty acid, prolonged air exposure can cause oxidation/color darkening; keep containers tightly closed.
  • Bulk shipment is in carbon steel or stainless steel tanks; ISO tank 20–22 MT net.
  • Shelf life is typically 12 months and can be extended to 24 months with controlled monitoring.
Is a TOFA 185 sample free, and how much volume do you send?

Sample volume and any cost depend on your target application and the tests you plan to run; ask KORKİMYA for these details when you request the sample. The site does not quote a fixed sample size or price because the need differs between an alkyd resin trial and a dimer acid trial.

Does the sample come with a CoA?

Yes. TOFA 185 ships with a Certificate of Analysis issued separately for each lot; the CoA shows the measured acid value, iodine value, rosin acid and unsaponifiable results.

What should I test first on the sample?

Verifying the acid value (ASTM D1980, min. 185 mg KOH/g) and the iodine value (ASTM D5768, min. 150) first confirms the stoichiometry and unsaturation your recipe needs fastest; then compare the rosin acid and unsaponifiable results against the CoA.

Can I move straight to a purchase order if the sample works?

Yes. Once the sample performs in spec in your lab and target application, you can move to a purchase order with the same lot traceability and CoA guarantee.

Does the TOFA 185 sample come with KKDIK registration and a Turkish SDS?

Yes. TOFA 185 is KKDIK-registered, and a Turkish Safety Data Sheet (SDS/GBF) is provided with the sample, so these documents are in hand from the sample stage for your audit and internal compliance processes.