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Product Name |
Squaric acid |
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Formula |
C4H2O4 |
Molecular Weight |
114.06 |
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CAS NO. |
2892-51-5 |
Quantity |
500KG |
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Items |
Specification |
Results |
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Appearance |
off-white to pale yellow powder
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Conforms |
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Assay |
≥99% |
99.1% |
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Moisture |
≤1.0% |
0.3% |
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CONCLUSION |
The result conform with standard |
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Melting point: >300 ° C (lit.)
Boiling point: 250.96 ° C
Density: 1.82g/cm3
Refractive index: 1.5800 (estimate)
Flash point: 190 ° C
Storage conditions: inertia, roomtemperature
Solubility: 20g/l
Acidity coefficient: (PKA) 1.5 (AT25 ℃)
It is used as acylation reagent to acylate with electrically activated aromatic ring; React with active double bonds and active methyl groups to produce new compounds with special properties; It is used to synthesize photoconductive squaryl cyanine and squaric acid dyes; Treatment with oxalyl chloride to produce dichlorocyclobutene diketone.
