Choosing DMA 40% Specifications for Industrial Applications
2026-11-12
China Amines Co., Limited
For procurement teams working with China Amines Co., Limited, selecting dimethylamine 40% aqueous solution starts with the requirements of the intended application.
Dimethylamine serves as a chemical building block across sectors including surfactants, agrochemical intermediates, rubber chemicals, and water-treatment chemicals. Manufacturer literature also distinguishes aqueous grades from anhydrous supply.
The next step is to translate the application’s needs into a measurable purchasing specification.
Confirm that the aqueous grade fits
Ask the process team to confirm the required concentration and acceptable water contribution.
At exactly 40.0% by weight, 1,000 kg of solution contains 400 kg of DMA. For a simplified two-component calculation, the remaining 600 kg is water.
Use this relationship for preliminary material planning, then review the actual grade documentation and batch assay. Any change from an approved supply form needs technical assessment.
Identify the quality parameters that matter
Define which properties affect material acceptance and application performance.
A manufacturer’s standard specification can provide a useful starting point. Eastman’s DMA 40% specification lists assay, ammonia, monomethylamine, trimethylamine, and color separately, with associated test methods. These requirements apply to its named grade.
For your supply, agree on the required limits rather than relying only on the nominal “40%” description.
Connect testing to application evaluation
Laboratory quality checks establish whether the sample meets the agreed analytical requirements.
Where application testing is needed, document the evaluation conditions, results, and approval scope. Keep those records connected to the sample’s grade and batch identification.
Confirm that the material proposed for commercial delivery follows the approved specification and qualification requirements.
Include practical supply requirements
Review packaging, net quantity, receiving arrangements, and required documents alongside technical acceptance.
State expected consumption and delivery timing so the proposed order fits production planning. Obtain the relevant SDS for handling review and agree on shipment-specific quality documentation before dispatch.
This gives purchasing, quality, and operations teams a shared basis for the first order and repeat deliveries.
Discuss your DMA 40% application
Send China Amines Co., Limited your intended application, approved specification, expected quantity, packaging preference, and destination.
Highlight any application-specific quality limits or qualification requirements so the proposed supply can be reviewed against your needs.
Inquiries: info@chinaamines.com