25g; Poly Bottle. Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. Polyphosphoric acid cyclization of phosphinate 168 provided isophosphinone derivative 169 <1997BMC1327>. ChEBI Name polyphosphoric acid: ChEBI ID CHEBI:52641: Definition A polymerized phosphorus oxoacid of general formula HO[PO 2 OH] n H formed by condensation of orthophosphoric acid molecules and containing a backbone chain consisting of alternating P and O atoms covalently bonded together. PPA is a reactive oligomer, a short-chain polymer, whose reaction with bitumen is poorly understood. Bitumen finds great use in paving and roofing applications. This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen. H n+2 P n O 3n+1 Specifications . Although bicyclo[2.2.2]octane moiety cuts π-electron conjugate system, it keeps the linear and rigid molecular structure as shown in Figure 24. P 2 O 5. Mechanism of Polyphosphoric Acid and Phosphorus Pentoxide−Methanesulfonic Acid as Synthetic Reagents for Benzoxazole Formation. Chloride (Cl) 0.001% max. Product Information . Fluorine (F) 0.0005% max. The molecular structure is based on structures generated from information available in ECHA’s databases. 8017-16-1. 83.3% min. It has been used successfully for over 40 years and is now broadly used, either as a stand-alone modifier or in combination with various polymers. Polyphosphoric acid (PPA) is a proven modifier that improves the properties of asphalt binder. In an effort to better understand their reaction, the chemical characteristics of PPA and bitumen are reviewed. flame retardants for the textile industry; Drying and dehydrating agent Product Name. With this objective, an in-depth literature review on PPA modification was firstly performed. The Journal of Organic Chemistry 1997 , 62 (11) , 3552-3561. The reactions can generate large amounts of heat in small spaces. Polyphosphoric Acid, 115%. CAS Number. POLYPHOSPHORIC ACID reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). Solvent – It can be used as a reaction medium and solvent. Phosphoric acid (H 3 PO 4) 115.0% min. Polyphosphoric Acid, 115%. Molecular Formula. 3 Effective date : 12.07.2014 Page 2 of 8 Phosphoric Acid,ACS Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com The structure calculated using MOPAC PM3 is shown in Figure 24. Chroma (Hazen) 40 max. To enhance or extend its performance, it is often modified with a polymer, including polyphosphoric acid (PPA). Application summary: Asphalt and bitumen additive; Intermediate to produce phosphate esters e.g. Dehydrating Agent – It is used as a strong drying and dehydrating agent. Polyphosphoric acid can be used in organic synthesis for cyclization, acylation and to produce phosphate esters that are being used in various industries. 8017-16-1 - Polyphosphoric acid - Searchable synonyms, formulas, resource links, and other chemical information. Reacts with or corrodes active metals, including such structural metals as … Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties. Polyphosphoric acids, ammonium salts. The benefits of PPA are demonstrated in conventional and Superpave™ testing procedures, as well as… Miscellaneous – PPA is used in metal treatment and as an asphalt and bitumen additive. ... Molecular structure. Organic Synthesis – Polyphosphoric Acid (PPA) is used to make phosphate esters, acid phosphates and pharmaceuticals.It is a good ring closing reagent. Regulatory process names 2 CAS names 1 IUPAC names 4 Other names 1 Other identifiers 19 . 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