2,2-Dihydroxymethylbutyric acid (DMBA)

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2,2-Dihydroxymethylbutyric acid (DMBA)

Product Features

2,2-Dimethylolbutyric acid (DMBA) is a kind of hydroxyl and carboxyl groups, unique multifunctional hindered diol molecules, in different solvents with better solubility than DMPA, as a chain extender and hydrophilic agent, DMBA has been widely used in the production of water-based polyurethane system of water-based coatings, water-based adhesives, water-based leather finishing agent.
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Product Details

Chinese name2,2-Dihydroxymethylbutyric acid (DMBA)

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English Name

Dimethylolbutanoic Acid Bis(hydroxymethyl)butyric Acid

Short form: DMBA

structural formula2,2-二羟甲基丁酸（DMBA）
Molecular formula

C6H12O4

CAS No.10097-02-6
molecular weight148.16
Melting Point≥ 108 ℃
Physical PropertiesThis product is a tasteless, free-flowing white crystal, soluble in water, methanol, dimethylformamide, acetone and so on.
Quality Index

 

Indicator name Index

Standard Standard

外观AppearanceWhite crystal with white granular crystals
Content Content (%)≥99
Water (%)≤ 0.3
熔点Melting Point (℃)108-116
Ash (%)≤ 0.03
残醛Residue Formaldehyde (%)≤ 0.03
酸值Acid Value (mgKOH/g)374.7-378.2
羟值Hydroxyl Value (mgKOH/g)728-782
Iron Fe3 (PPM)≤5
钠Na (PPM)≤ 150
Potassium K (PPM)≤10
acetone-triethylamine dissolution testAcetone-ET3NSolube ExperienceClarification and transparencyTransparent

 

Use

DMBA is a kind of hydroxyl and carboxyl groups, unique multi-functional hindered diol molecules, in different solvents with better solubility than DMPA, as a chain extender and hydrophilic agent, DMBA has been widely used in the production of water-based polyurethane system of water-based coatings, water-based adhesives, water-based leather finishing agent.

Packaging25Kg aluminum foil bag plus carton or according to user requirements.
StorageRequires closed storage, stored in a cool and dry place. When stacking, it is padded with 10cm thick board and 50cm away from the wall.

 

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Dimethylol propionic acid (DMPA regular powder)

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