Industry Grade Polyphosphoric Acid Used for Compounds Cyclizing Agent

Specification:Polyphosphoric AcidsChemical formula: H6P4O13 Molecular weight: 337.93 CAS: 8017-16-1 Characteristics: PPA is colorless transparent viscous liquid, hygroscopic, non-crystallizable,corrosive, water soluble into orthophosphate acid. Acidity is weaker than nitric acid and sulfuric acid. Non-oxidicability, could cause burns when meeting H vesicant. Specific gravity is 2.1g/cm3. Normal boiling point is 856ºC, keeping hard glassy block upon lowtemperature and liquid when heating up to 50~60ºC. Relative density is 1.987(P2O5 80.0%); 2.052(P2O5 84.0%); 2.084(P2O5 86.0%). Hazard label 20 (corrosives acidic properties). High viscidity, hard to stir or pour under normal temperature, and easily to operate when temperature is above 60ºC, omit heat when solublein water, should be under ice-bath station when making dilution. Technical Datas:  S/N.SPECIFICATIONSINDUSTRIAL GRADEFOOD GRADE1Main content  %≥ 115-116%117%2(P2O5)Phosphorus pentoxide %≥ 83-84%85%3Chioride Radical≤0.0010.0014Sulfate Radical 0.010.0025Viscosity(CP Centipoises) 35000350006Chroma(Heep)≤50207Heave Metals(as Pb) %≤0.010.0018Fe%≤0.010.0019As%≤0.010.005  Use:PPA is widely used on medicine, parfum, leather, chemical industry, compounds cyclizing agent, acidifying agent, dehydrating agent in organic synthesis. And used as substitute for orthophosphate. Potential Health Effects:Invasion way: inhalation, ingestion, skin. Corrosive and irritating to upper respiratory tract once inhalate vapor or fume. And cause immediate severe irritation of the eye and eyelids. If not quickly removed by thorough irrigation with water, there may be prolonged or permanent visual impairment or total loss of sight.  Transportation:Hazard Mark: CDangerous Goods Code: 3264Hazard Class: 8PackingGroup: IIIHazardous Substances Data: 8017-16-1 Packing, transportation and storage:Packing: plastic or glass bottles outer wooden case, inner for non-inflammable materials. Storage in dry and ventilated place. It is strictly forbidden to store and transport together with alkaline, poison and corrosive products.packing weight: (Net weight) can be customized accordingly. Lead Time:7-10 days after receing the payment. Payment terms:T/T or L/C.discussing with you./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1