How to Qualify a New MDEA Supplier for Your Plant

Your purchasing team has received an offer from a new N-methyldiethanolamine (MDEA, CAS 105-59-9) supplier. Before placing the first order, bring the proposed grade, supporting documents and acceptance requirements into one review. This gives procurement, quality and operations a shared basis for deciding whether the product is suitable for the plant.

Start with the approved solvent specification

Confirm whether the unit requires concentrated MDEA, an aqueous solution or a formulated solvent. MDEA is used for selective hydrogen sulfide removal in gas treatment, while commercial solvent formulations can be tailored to particular applications. For a formulated solvent, ask the process team to review the proposed grade against the unit’s approved requirements. energy-resources.basf.com

Compare the full specification and test methods

Create a comparison using the plant’s required limits and the supplier’s proposed values. Include assay, water content, color and any additional impurity limits your site specifies. Published MDEA technical data sheets list several of these items separately, so check each requirement and its reporting basis. Resolve differences in methods or units before requesting approval. amines.com

Define what the sample evaluation must establish

Ask the quality and process teams to agree on the tests, acceptance criteria and any application evaluation required. Record the sample identity, supplier grade and lot reference with the results. When the evaluation is complete, carry the approved specification revision into the purchase order so the first shipment can be checked against the same requirements.

Set the release requirements for the first shipment

Confirm which documents the supplier must provide before dispatch and which checks your receiving team will complete. Request a batch certificate of analysis for every supplied lot and a packing list linking lot numbers to shipment quantities. Assign a contact for resolving document or test discrepancies before the material is released for use.

Request an MDEA supplier review package

Send China Amines Co., Limited your approved specification, intended application, sample requirements, expected order quantity, preferred packaging and destination port. Include your first-shipment approval requirements so we can review the proposed grade and available documentation alongside the quotation.

Inquiries
info@chinaamines.com

Technical references

• BASF Gas Treatment — Formulations and Solvents
• Amines & Plasticizers Limited — Methyl Diethanolamine Technical Data Sheet