important widely used coating chemical 2,2-Bis(hydroxymethyl)butyric acid, DMBA Specification: TESTSSPECIFICATIONS AppearanceOdorless White crystalFe5 ppm max Na150 ppm max K, P, SO42-10 ppm max Silicon1 ppm max Hydroxyl value(mg KOH/g)728-782 Residue aldehyde0.01% Residue on ignition0.03% Moisture0.2% max Assay99.0% min Application:PU resinepoxy resinwater soluble alkyd resinpolyester resin 2,2- ...
cold storage tube 5ml For liquid nitrogen storage,wrting area,graduation... keep good seal and shape 1.5ML 1.8ML 2ML 4ML 5ML cold storage tube 5mlcryovial tube We are carefully inspected raw material and carry out strict in-process check as well as laboratory test to ensure our products with good quality.Freezing tubes can bear temperature of 120 and low temperature of -190. Very good mechanical, ...
Chemical name:DODECYL/TETRADECYL DIMETHYL AMINE It is mainly used to produce positive ion and amphoteric surface active agent. Chemical formula: Molecular weight:220 Chemical name:dimethyl dodecyll/tetradecyl amine Property:colorless and transparent liquid,insoluble in water,soluble in organic solvent such as alcohol,ether,etc.Perform standard:GB/T15045-94ASSAY ITEMSPECIFICATIONSTotal Amine98% ...
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