- Product Name:
- BENZOPURPURIN 4B
- BENZOPURPURIN B, FOR MICROSCOPY
- BENZOPURPURINE 4B, FOR MICROSCOPY,INDICA TOR
- Diclosulam, Pestanal
- Direct Benzo Purpine 4B
- SULTAN 4B
- PURPURINE 4B
- VICTORIA RED
- Product Categories:
- Analytical Chemistry
- Indicator (pH)
- pH Indicators
- Mol File:
BENZOPURPURIN 4B Chemical Properties
- Melting point:
- Solubility Soluble in water, ethanol, acetone, sodium hydroxide, sulfuric acid
- Colour Index
- PH Range
- Water Solubility
- Soluble in water (20 mg/ml), acetone, ethanol (3 mg/ml), sodium hydroxide, and sulfuric acid.
- Stable. Incompatible with strong oxidizing agents.
- Major Application
- Liquid crystal displays, thin films, electronic devices, inks, lithographic printing plates, lithographic printing plates, printing and dyeing applications, textiles, lubricants, food storage, microorganism staining agent, treatment of apolipoprotein E-related diseases, antifungal agent
- EPA Substance Registry System
- C.I. Direct Red 2, disodium salt (992-59-6)
- Language:English Provider:SigmaAldrich
BENZOPURPURIN 4B Usage And Synthesis
dark red or brown powder
For dyeing primarily cotton and viscose rayon: Colour Index vol. 2 (3rd ed., 1971) p 2101. As an analytical reagent in detection of Al, Mg, Hg, Ag, U; as a biological stain; as pH indicator, violet 1.2 to red 4.0.
Brown to dark red powder.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
BENZOPURPURIN 4B is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Flash point data for BENZOPURPURIN 4B are not available. BENZOPURPURIN 4B is probably combustible.
It crystallises from H2O. It is a biological stain that is violet at pH 1.2 and red at pH 4.0 and is used for detecting Al, Mg, Hg, Au and U. [Beilstein 16 H 411, 16 II 224, 16 III 474, 16 IV 601.]
- 010-82848833- ;010-82848833-
- 021-67121386 / 800-988-0390
- 400 638 7771
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- 1-Naphthalenesulfonic acid
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