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| LC1558 1,2-Dihydroxy-3,4-cyclobutenedione for synthesis |
| Order number | Packaging | Quantity | Price € |
| AC28558 | Glass bottle | 5 g | 49.95 |
| Product information | |
| Synonyms | Quadratic acid |
| Hill Formula | C4H2O4 |
| HS Code | 2914 40 90 |
| EC number | 220-761-4 |
| Molar mass | 114.05 g/mol |
| CAS number | 2892-51-5 |
| Chemical and physical data | |
| Ignition temperature | 400 °C |
| Solubility | 20 g/l (30 °C) |
| Melting point | 293 °C decomposes |
| Molar mass | 114.05 g/mol |
| Density | 1.82 g/cm3 |
| pH value | 1 (1 g/l, H2O, 20 °C) |
| Vapor pressure | < – 0.01 hPa (20 °C) |
| Flash point | 190 °C |
| Safety information | |
| R Phrase | R 34 Causes burns. |
| S Phrase | S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
| Categories of danger | corrosive |
| Hazard Symbol |  corrosive |
| RTECS | |
| Storage class | 8 A Combustible substances, corrosive |
| WGK | WGK 3 highly water endangering |
| Disposal | 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. |
| Transport information | |
| Declaration (transport by sea) IMDG-Code | UN 3261 CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.(1,2-DIHYDROXYCYCLOBUTENE DIONE), 8, II, Segregation Group: 1 (Acids) |
| Declaration (transport by air) IATA-DGR | UN 3261 CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.(1,2-DIHYDROXYCYCLOBUTENE DIONE), 8, II |
| Specifications | |
| Assay (acidimetric) | ≥ 99 % |
| Identity (IR) | passes test |
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Hazard Symbol