Diphenylamine ER Qualigens, 100g

• Purity: Generally 99.0% (by GC).
• Appearance: White to off-white, yellowish, or pale-brown crystalline flakes or powder.
• Melting Point: 50C to 55C.
• Solubility: Insoluble in water; soluble in ethanol, ether, and benzene.
• Sensitivity: Passes standard ACS/analytical tests for nitrates

• Redox Indicator: Used as an oxidation-reduction indicator in titrations (e.g., titrating iron with dichromate).
• Nucleic Acid Analysis: Employed in the Dische diphenylamine test for the colorimetric estimation and identification of DNA.
• Organic Synthesis: Serves as a chemical intermediate and stabilizer for rubber and explosives.

Q: How is Diphenylamine ER Qualigens typically used in laboratory settings?

A: Diphenylamine ER Qualigens is primarily used as a reagent in chemical analysis, synthesis, and research studies. Its high purity makes it suitable for sensitive applications such as detecting nitrates and nitrites, and it is also involved in some organic synthesis procedures.

Q: What safety precautions should be taken when handling Diphenylamine ER Qualigens?

A: Always handle Diphenylamine in a well-ventilated area using appropriate personal protective equipment such as gloves, lab coat, and safety goggles. Avoid direct contact and inhalation of dust. Store the product in its original glass bottle in a cool, dry place away from heat or ignition sources.

Q: When should Diphenylamine ER be replaced or discarded?

A: It is recommended to use the chemical within its 60-month shelf life to ensure optimal performance and purity. If the appearance changes significantly or if the integrity of the bottle is compromised, proper disposal protocols should be followed as per laboratory safety guidelines.

Q: Where should Diphenylamine ER be stored for maximum shelf life?

A: Store Diphenylamine ER Qualigens in its original tightly sealed glass container, in a cool, dry environment away from direct sunlight and moisture. This helps preserve the compound's integrity and minimizes degradation over time.

Q: What benefits does the high purity (98.5% to 99.0%) of this product provide?

A: The high purity of Diphenylamine ER ensures minimal interference from contaminants during experiments, which contributes to the accuracy, reproducibility, and reliability of laboratory results.

Q: Can Diphenylamine ER Qualigens be used in aqueous solutions?

A: Due to its sparing solubility in water, Diphenylamine is generally used in organic solvents for laboratory procedures. Its effectiveness is maximized in non-aqueous environments.