| DIMETHYLOLPROPIONIC ACID | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 4767-03-7 |
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| ELINCS/EINECS NO. | 225-306-3 | |
| FORMULA | CH3C(CH2OH)2COOH | |
| MOL WT. | 134.13 | |
| H.S. CODE |
2918.19 | |
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TOXICITY |
Orl rat LD50: >5 gm/kg | |
| SYNONYMS | 2,2-Bis(hydroxymethyl)propionic acid; Bis-MPA; DMPA; | |
| 3-hydroxy-2-(hydroxymethyl)-2-methyl-propanoic Acid; Dihydroxypivalic Acid; Alpha, Alpha-bis(Hydroxymethyl) Propionic Acid; | ||
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RAW MATERIALS |
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE | white to off white crystalline solid | |
| MELTING POINT | 189 - 190 C | |
| BOILING POINT |
>200 C | |
| SPECIFIC GRAVITY | ||
| SOLUBILITY IN WATER | soluble | |
| pH |
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| VAPOR DENSITY | ||
| AUTOIGNITION |
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| NFPA RATINGS |
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REFRACTIVE INDEX |
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| FLASH POINT |
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| STABILITY |
It is hygroscopic. It should be handled and stored to prevent moisture. | |
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APPLICATIONS |
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| Polyol and carboxyl acid are essential in polyurethane manufacturing system. Dimethylol propionic acid (DMPA) contains two kinds of functional groups in one molecule. There are two primary hydroxyl groups and one tertiary carboxyl group which provide function of making polyurethanes and polyesters especially water soluble. Application includes polyurethane dispersion, alkyds and polyesters, chemical building block, printing inks, photographic chemicals. | ||
| SALES SPECIFICATION | ||
| APPEARANCE |
white to off white crystalline solid | |
| ASSAY |
99.0% min | |
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HYDROXYL GROUPS |
810 min (mg KOH/g) | |
| ACID VALUE |
405 min (mg KOH/g) | |
| ASH |
0.03% max | |
| WATER |
0.3% max | |
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MELTING POINT |
180 C min | |
| TRANSPORTATION | ||
| PACKING | 20kgs in Bag | |
| HAZARD CLASS | ||
| UN NO. | ||
| OTHER INFORMATION | ||
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