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| | Murexide Basic information |
| Product Name: | Murexide | | Synonyms: | Acid ammonium purpurate,Ammonium purpurate,5,5'-Nitrilodibarbituric acid ammonium salt;5,5'-NITRILODIBARBITURIC ACID MONOAMMONIUM SALT;ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-ylideneamino)barbiturate;AMMONIUM PERPURATE;AMMONIUM PURPURATE;AMMONIUM PURPURATE ACID;Purpuric Acid, Ammonium Salt;MUREXIDE A.C.S. REAGENT | | CAS: | 3051-09-0 | | MF: | C8H8N6O6 | | MW: | 284.19 | | EINECS: | 221-266-6 | | Product Categories: | Chemical Synthesis;Colours, Dyes, Indicators & Pigments | | Mol File: | 3051-09-0.mol |  |
| | Murexide Chemical Properties |
| Melting point | 300 °C | | Boiling point | 443.25°C (rough estimate) | | density | 1.5756 (rough estimate) | | refractive index | 1.8000 (estimate) | | storage temp. | no restrictions. | | solubility | 1g/l | | form | Solid | | Colour Index | 56085 | | pka | pK1:0.0;pK2:9.20;pK3:10.50 (25°C) | | color | Reddish-violet | | Odor | Odorless | | PH | 5 (1g/l, H2O, 20℃) | | Water Solubility | Slightly soluble | | Merck | 14,6306 | | BRN | 3582175 | | InChIKey | HZRQHQKDQSVFMQ-UHFFFAOYSA-N | | NIST Chemistry Reference | Ammonium purpurate(3051-09-0) | | EPA Substance Registry System | 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-, monoammonium salt (3051-09-0) |
| Hazard Codes | Xn | | Risk Statements | 22-40 | | Safety Statements | 24/25-22-36/37 | | WGK Germany | 3 | | TSCA | Yes | | HS Code | 29335995 |
| | Murexide Usage And Synthesis |
| Chemical Properties | Bordeaux powder | | Uses | Indicator for complexometric titrations. | | Uses | Murexide is used as a complexometric indicator in analytical chemistry for complexometric titrations of calcium, copper nickel and cobalt. It is an inhibitor of dihydrofolate reductase. Further, it acts as an enhancer of sonochemical destruction of chlorinated hydrocarbon pollutants. | | Purification Methods | The sample may be grossly contaminated with uramil, alloxanthine, etc., and may be difficult to purify. It is better to synthesise it from pure alloxanthine [Davidson J Am Chem Soc 58 1821 1936]. Recrystallise it from water. [Kuhn & Lyman Chem Ber 69 1547 1936, Beilstein 25 I 709, 25 III/IV 4236.] |
| | Murexide Preparation Products And Raw materials |
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