Source and Distribution of Phosphorus Pentoxide in Triple Superphosphate. Determination by Radioactive Phosphoric Acid.

Phosphorylation for the first generation product of hyperbranched polymer with terminal hydroxyl (HPAE1) was carried out to synthesize a type of P-N intumescent flame retardant （HPAE1-P）, with phosphorus pentoxide and phosphoric acid as phosphorylating agent. HPAE1-P was used in waterborne polyurethane MWU-T-502B-30, and then they were tested the properties of the emulsion, such as the stability, LOI, smoke density and vertical combustion performance. The results showed that the compatibility of this flame retardant agent and waterborne polyurethane MWU-T-502B-30 was very good, and this flame retardant agent could effectively improve the polyurethane flame retardant property.

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Control of Bacterial Wilt of Geranium with Phosphorous Acid

Plant Disease ◽

10.1094/pd-90-0798 ◽

2006 ◽

Vol 90 (6) ◽

pp. 798-802 ◽

Cited By ~ 17

Author(s):

D. J. Norman ◽

J. Chen ◽

J. M. F. Yuen ◽

A. Mangravita-Novo ◽

D. Byrne ◽

...

Keyword(s):

Phosphoric Acid ◽

Bacterial Wilt ◽

Ralstonia Solanacearum ◽

Phosphorous Acid ◽

Phosphorus Pentoxide ◽

In Vitro Growth ◽

Potassium Salts ◽

Active Portion ◽

Race 1

Various bactericides were screened for efficacy in protecting geranium plants (Pelargonium hortorum) from Ralstonia solanacearum infection. Many of these bactericides were found to slow the disease progress; however, they were not able to protect the plants from infection and subsequent death. Potassium salts of phosphorous acid were found to be effective in protecting plants from infection when applied as a drench. The active portion of the potassium salts was found to be phosphorous acid (H3PO3). Phosphorous acid was found to inhibit in vitro growth of R. solanacearum. It is thought to be protecting plants from infection by acting as a bacteriostatic compound in the soil. The plants, however, are not protected from aboveground infection on wounded surfaces. Phosphorous acid drenches were shown to protect geranium plants from infection by either race 1 or 3 of R. solanacearum. Other phosphorous-containing products commonly used in the industry, such as phosphorus pentoxide (P2O5) and phosphoric acid (H3PO4), were not able to protect plants from bacterial wilt infection.

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Determination of source and distribution of P2O5 in triple superphosphate by radioactive phosphoric acid

10.31274/rtd-180813-14685 ◽

1952 ◽

Author(s):

Joseph William Markey

Keyword(s):

Phosphoric Acid ◽

Triple Superphosphate

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Composition and Properties of Triple Superphosphate Obtained from Oyster Shells and Various Concentrations of Phosphoric Acid

ACS Omega ◽

10.1021/acsomega.1c02660 ◽

2021 ◽

Author(s):

Somkiat Seesanong ◽

Chaowared Seangarun ◽

Banjong Boonchom ◽

Nongnuch Laohavisuti ◽

Kittichai Chaiseeda ◽

...

Keyword(s):

Phosphoric Acid ◽

Triple Superphosphate

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Phosphorylation of Proteins with Phosphoric Acid Containing Excess Phosphorus Pentoxide

Journal of the American Chemical Society ◽

10.1021/ja01186a033 ◽

1948 ◽

Vol 70 (6) ◽

pp. 2101-2107 ◽

Cited By ~ 51

Author(s):

Robert E. Ferrel ◽

Harold S. Olcott ◽

Heinz Fraenkel-Conrat

Keyword(s):

Phosphoric Acid ◽

Phosphorus Pentoxide ◽

Phosphorylation Of Proteins

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Solubility Study and purification Of Industrial triple superphosphate in aqueous solution

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v9i2.2348 ◽

2013 ◽

Vol 9 (2) ◽

pp. 1943-1952

Author(s):

Khouloud Nasri ◽

Chaker Chtara ◽

Hassen Chekir ◽

Hafed EL Feki

Keyword(s):

Aqueous Solution ◽

Ionic Conductivity ◽

Calcium Phosphate ◽

Phosphoric Acid ◽

Aqueous Solutions ◽

Chemical Fertilizer ◽

Triple Superphosphate ◽

Solubility Study ◽

Different Temperatures ◽

Insoluble Compounds

Triple Superphosphate (TSP) is a chemical fertilizer, acknowledged by its important content of phosphorus, necessary element for plants. It’s obtained by adding phosphoric acid to phosphate ore, consisting of calcium phosphate containing many impurities. TSP was dissolved at different temperatures and in various amounts of water, filtered to remove insoluble compounds. Then the ionic conductivity was monitored for each solution as a function of the added amount of TSP. Aqueous solutions were evaporated to dryness and analyzed the P2O5. The starting materials and final products were analyzed by several methods (XRD, IR, NMR, SEM) confirming that after dissolution the product was purified.

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Phosphorus pentoxide from Kazakhstan phosphorus as a base for production of polyphosphoric acids (PPA) in the cascade reactors system

Polish Journal of Chemical Technology ◽

10.2478/pjct-2019-0005 ◽

2019 ◽

Vol 21 (1) ◽

pp. 24-26

Author(s):

Damian Milde ◽

Leszek Urbańczyk ◽

Marcin Figura ◽

Wojciech Piś

Keyword(s):

Phosphoric Acid ◽

Production Process ◽

Phosphorus Pentoxide ◽

High Chemical ◽

Chemical Purity ◽

Phosphoric Acids

Abstract The polyphosphoric acids (PPA) were synthesized in a cascade reactors system from P2O5 obtained from the burning of Kazakh phosphorus. Presented system provides guidelines for the PPA production process using phosphoric acids only at concentrations above 100% (in conversion to H3PO4). Polyphosphoric acids are processed in a cascade reactors system, where the in 1st concentration of PPA is increased by addition of P2O5, while in the 2nd reactor PPA is diluted with the use of 85% phosphoric acid. Produced PPA can be obtained in the 100–118% range and is characterized by high chemical purity due to the reduction of the corrosivity of the reaction, which results in very low content of iron (below 2 ppm Fe).

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