How do you store picric acid?
Picric acid should be stored in a dry, dark environment away from potential sources of ignition, the concentration and solvent in which solutions are prepared should be clearly visible on the outside of the container.
What is the precaution we have to take during use of picric acid in fixative preparation?
To prevent contact with the eyes and skin, a lab coat, safety glasses, and gloves with adequate chemical resistance (nitrile preferred) must be worn during any picric acid manipulations. All work with picric acid should be performed in a properly functional chemical fume hood to minimize inhalation exposure.
Can picric acid explode?
It may be ignited by heat, sparks, or flames. Dried-out picric acid may explode if expose to heat, flame, friction, or shock, and should be treated as an explosive.
How do you get rid of picric acid?
If you decide to dispose of your wet picric acid, several options are available. First, you could try reducing the picric acid to a non-explosive form using sodium hydroxide and sodium sulfide (18). After this treatment, the material will still be toxic and have to be 06/18/02 Page 3 disposed of as hazardous waste.
Why do your fingers become yellow with picric acid?
For medical use it is incorporated in a surface anesthetic ointment or solution and in burn ointments. Picric acid is a much stronger acid than phenol; it decomposes carbonates and may be titrated with bases. In a basic medium, lead acetate produces a bright yellow precipitate, lead picrate.
What is the importance of picric acid?
Picric acid has antiseptic and astringent properties. For medical use it is incorporated in a surface anesthetic ointment or solution and in burn ointments. Picric acid is a much stronger acid than phenol; it decomposes carbonates and may be titrated with bases.
Is picric acid flammable?
When hydrated, picric acid is a typically safe to handle, but it becomes a powerful explosive when dry (less than 10% water). Dry picric acid is highly sensitive to heat, shock, and friction. The moistened solid is classified as a flammable solid.
Is picric acid a carcinogen?
Skin contact with picric acid can cause irritation and yellow staining of the skin. Eye contact may result in irritation and damage to the eye. Can picric acid cause cancer? There are no data on whether picric acid causes cancer in humans.
Which fixative is explosive?
Picric acid
Picric acid (2,4,6-trinitrophenol) is a highly explosive compound most commonly used in military applications.
What color does picric acid make?
yellow
Picric acid | Global FlyFisher | Dyeing with picric acid yields colors between a gorgeous olive and an electric yellow.