Phosphoric acid was discovered in 1770 by K. W. Scheele and J. G. Gahn in bone ash (see ash); Scheele later isolated phosphorus from bone ash (1774) and produced phosphoric acid by the action of nitric acid on phosphorus (1777).
What is the most efficient way for making pure or semipure elemental phosphorus, by using phosphoric acid as an source of phosphorus? ... Making elemental phosphorus from phosphoric acid [closed] ... Remember that white phosphorous and its vapors are highly toxic! – .
The crude acid is prepared from phosphate rock, while acid of higher purity is made from white phosphorus. Phosphoric acid forms three classes of salts corresponding to replacement of one, two, or three hydrogen atoms.
Phosphorus planets' main climates are precipitation and "white fog." Unlike Earth, phosphorus planets use phosphoric acid as a "variable gas" instead of water vapor as it is on Earth. For example, there are phosphoric acid rain or phosphoric acid snow instead of water rain or water snow.
White phosphorus is used by the military in various types of ammunition, and to produce smoke for concealing troop movements and identifying targets. It is also used by industry to produce phosphoric acid and other chemicals for use in fertilizers, food additives, and cleaning compounds.
Keep after It is not illegal. isopropynol. is what reacts the White Phosphorus 99+% in water 100g 71. you can get it off match strikers Yes. in water 500g 26. ... Phosphorus; Phosphoric Acid; ... Documents Similar To Cleaning Red Phosphorous. Technologies, Performance and Costs for Wastewater Nutrient Removal ...
Jun 16, 2017· Production of phosphoric acid from red phosphorus CEEA Erasmus. Loading... Unsubscribe from CEEA Erasmus? ... Making White Phosphorus done it this time! Duration: 8:18.
Dec 12, 2012· Phosphorus via reduction of phosphoric acid with carbon in a microwave The patent attached describes a process for reducing phosphoric acid with carbon to white phosphorus. The patent gives a laboratory scale example in which a quartz test tube is charged with carbon and phosphoric acid and irradiated under conditions fairly similar to those in ...
Feb 12, 2013· White phosphorus is a waxy solid which burns easily and is used in chemical manufacturing and smoke munitions. Exposure to white phosphorus may cause burns and irritation, liver, kidney, heart, lung, or bone damage, and death.
The management of white phosphorus burns. ... Its oxides, (P 2 O 3 and P 2 O 5), produce phosphoric acid in contact with tissue fluid, and phosphoric acid promotes the combustion process, . Burning phosphorus is easily extinguished with water, but reignites after drying, producing smoke.
It reacts with sulphuric acid to form Phosphoric acid (H 3 PO 4) P 4 + 10 H 2 SO 4 (Sulphuric acid) → 10 SO 2 + 4 H 3 PO 4 (Phosphoric acid) + 4 H 2 O (e). Reaction with Oxygen ... βblack phosphorus is formed when white phosphorus is heated at 473 K under high pressure. Oxides . It has two oxides namely Phosphorus trioxide (P 4 O 6) and ...
Methamphetamine Synthesis via HI/Red Phosphorous Reduction of Ephedrine Harry F. Skinner ... The final product varies from white to orange/brown in color. It is usually greater than 95% in purity and contains no ephedrine. ... The hydriodic acid/red phosphorus reduction of ephedrine to methamphetamine has been discussed. The stereochemistry of ...
Phosphoric acid. Related Pages. Synonyms Trade Names Orthophosphoric acid, Phosphoric acid (aqueous), White phosphoric acid CAS No. RTECS No. TB. DOT ID Guide. 1805 154(liquid or solution) 3453 154(solid) Formula. H₃PO₄ ...
Most of the phosphorus that is produced commercially is processed into phosphoric acid and into the phosphorus fertilizers and commercial salts (phosphates) based on the acid. White phosphorus is used in incendiary bombs and devices and smoke bombs; red phosphorus .
Anhydrous phosphoric acid, a white low melting solid, is obtained by dehydration of 85% phosphoric acid by heating under a vacuum. Orthophosphoric acid is a very polar molecule. It is miscible with water.
Phosphorous acid is the compound described by the formula H 3 PO 3. This acid is diprotic ... Other important oxyacids of phosphorus are phosphoric acid (H 3 PO 4) and hypophosphorous acid (H 3 PO 2). The reduced phosphorus acids are subject to similar tautomerism involving shifts of H between O and P. ... a white precipitate of mercurous ...
Airborne phosphoric acid can be produced by the hydrolysis of phosphorus oxides generated from either the spontaneous ignition of white phosphorus in air or the combustion of red phosphorus (Burton et al., 1982; US Department of Defense (US DOD), 1981).
The phosphorus in the phosphoric acid used to make most dry phosphate fertilizers as well as a few liquids is in the orthophosphate form. Process: Manufacturing and soil conversion. If ordinary phosphoric acid is heated, water is removed and the orthophosphate ions combine to form a polyphosphate.
industrial acid conversion technology and processes to modified APE, and provided the capability of handling the wide variety of WP filled munitions, from grenades to 155 mm projectiles. D The original intent was to develop a White Phosphorus to Phosphoric Acid Conversion (WP/PAC) Plant that would be .
The white phosphorus allotrope presents a significant hazard because it's pyrophoric and produces phosphorus pentoxide and phosphoric acid fumes as residue, that are potent irritants. Chronic white phosphorus poisoning leads to necrosis of the jaw called "phossy jaw".
