Purple-K
0Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers. It is the second most effective dry chemical in fighting class B (flammable liquid) fires after Monnex (potassium allophanate), and can be used against some energized electrical equipment fires (USA class C fires). It has about 4–5 times more effectiveness against class B fires than carbon dioxide, and more than twice that of sodium bicarbonate. Some fire extinguishers are capable of operation in temperatures down to −54 °C or up to +49 °C. Dry chemical works by directly inhibiting the chemical chain reaction which forms one of the four sides of the fire tetrahedron (heat + oxygen + fuel + chemical chain reaction = fire). To a much smaller degree it also has a smothering effect by excluding oxygen from the fire. "Dry chemical" extinguishers, such as Purple-K, are different from "dry powder" extinguishers that are used to fight Class D flammable metal fires.Purple-K was developed by the United States Naval Research Laboratory in 1959, as an improvement over sodium bicarbonate for extinguishing oil and gasoline fires. It was named due to the characteristic lavender tint imparted to flames, owing to the potassium (chemical symbol "K") content.
Source: https://en.wikipedia.org/wiki/Purple-K
Created with WikipediaReaderReborn (c) WikipediaReader
Other Videos By WikiReader
| 2022-02-05 | Galaxias papilionis |
| 2022-02-05 | José de Jesús Corona |
| 2022-02-05 | Canton of Lassay-les-Châteaux |
| 2022-02-05 | Pasteur (Milan Metro) |
| 2022-02-05 | Bermann |
| 2022-02-05 | VAQ-34 |
| 2022-02-05 | Karen Mellor |
| 2022-02-05 | Peter McConville |
| 2022-02-05 | Xiulang Bridge metro station |
| 2022-02-05 | Andreas Gruber (footballer) |
| 2022-02-05 | Purple-K |
| 2022-02-05 | Max Martini |
| 2022-02-05 | Fulgence Rwabu |
| 2022-02-05 | Tua River (Papua New Guinea) |
| 2022-02-05 | Skagway Seaplane Base |
| 2022-02-05 | Question 4 |
| 2022-02-05 | Pacific Crest Securities |
| 2022-02-05 | Rosie Vanier |
| 2022-02-05 | Kenyan migration to the United Kingdom |
| 2022-02-05 | Deception (2013 American TV series) |
| 2022-02-05 | Harrys Depot |