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Met-L-X (sodium chloride) was the first extinguisher developed in the US, with graphite, copper, and several other types being developed later. In the 1940s, Germany invented the liquid chlorobromomethane (CBM) for use in aircraft. It was more effective and slightly less toxic than carbon tetrachloride and was used until 1969.
Health (blue) 0: Poses no health hazard, requires no precautions, and would offer no hazard beyond that of ordinary combustible materials (e.g., wood, sugar, salt, propylene glycol) 1: Exposure would cause irritation with only minor residual injury (e.g., acetone, sodium bromate, potassium chloride) 2
Properties of water–NaCl mixtures [3]; NaCl, wt% T eq, °C ρ, g/cm 3 n η, mPa·s 0: 0: 0.99984: 1.333: 1.002 0.5: −0.3: 1.0018: 1.3339: 1.011 1: −0.59: 1.0053 ...
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .
Strontium chloride or strontium nitrate: Orange: Calcium chloride: Yellow-green: Barium chloride: Orange-yellow: Sodium chloride (table salt) Apple green: boric acid: Green: Copper(II) sulfate and boric acid: Blue: Copper(I) chloride and butane: Violet: 3 parts potassium sulfate, 1 part potassium nitrate (saltpeter) Blue/light violet: Potassium ...
In other words, a fast flow extinguisher expels a higher volume of agent in less time than a standard compliance flow extinguisher. As a result, fast flow extinguishers have lower UL class A&B ratings than compliance flow extinguishers (the class B numerical rating is the approximate square feet of burning fuel a novice operator could expect to ...
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [2]
Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers. [1] 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). [2]