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Perchloric acid is a mineral acid with the formula H Cl O 4. It is an oxoacid of chlorine . Usually found as an aqueous solution, this colorless compound is a stronger acid than sulfuric acid , nitric acid and hydrochloric acid .
Potassium perchlorate in crystal form. Potassium perchlorate is prepared industrially by treating an aqueous solution of sodium perchlorate with potassium chloride.This single precipitation reaction exploits the low solubility of KClO 4, which is about 1/100 as much as the solubility of NaClO 4 (209.6 g/100 mL at 25 °C).
The explosion was caused by the improper handling of perchloric acid, which the plant was using as an experimental method for polishing aluminum. On the day of the accident, the cooling unit required to store perchloric acid safely was not working.
As perchloric acid is one of the strongest mineral acids, perchlorate is a weak base in the sense of Brønsted–Lowry acid–base theory. As it is also generally a weakly coordinating anion, perchlorate is commonly used as a background, or supporting, electrolyte.
Peracetic acid (concentration greater than 60%) 79-21-0 1000 Perchloric acid (concentration greater than 60% by weight) 7601-90-3 5000 Perchloromethyl mercaptan: 594-42-3 150 Perchloryl fluoride: 7616-94-6 5000 Phosgene: 75-44-5 100 Phosphine: 7803-51-2 100 Phosphorus oxychloride: 10025-87-3 1000 Phosphorus trichloride: 7719-12-2 1000 ...
Any material which exhibits a mean pressure rise time less than or equal to the pressure rise time of a 1:1 nitric acid (65 percent)/cellulose mixture and the criteria for Packing Group I and II are not met. Group II 5.2: All All Division 5.2 materials do not have a packing group in Column 5 of the 49 CFR 172.101 Table.
This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002).The list can be found as an appendix to 40 CFR 355. [1]
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]