Synthesis and Application of a Formaldehyde-free Flame-retardant for Cotton Fabrics by Polymerization between Diammonium Hydrogen Phosphate and Citric Acid

Xrd Patterns ◽

Crystalline Forms ◽

Ammonium polyphosphate (APP) is an effective intumescent flame retardant, it has different crystalline forms and therefore, different application. By process of diammonium hydrogen phosphate, the intermediate APP-X in between ammonium polyphosphate form II (APP-II) and form V (APP-V) was found and measured. The transformation process from APP-X to APP-II were studied and discussed. The XRD patterns in this process were discussed in detail so that the crystalline transformation process from APP-X and APP-II can be understood.

Effect of concentrations of ammonium molybdate, diammonium hydrogen phosphate, formaldehyde, and minerals in mixture on the synthesis of amino acids

Zeitschrift für allgemeine Mikrobiologie ◽

10.1002/jobm.3630140202 ◽

1974 ◽

Vol 14 (2) ◽

pp. 87-91 ◽

Cited By ~ 3

Author(s):

K. Bahadur ◽

M. L. Verma ◽

Y. P. Singh

Keyword(s):

Amino Acids ◽

Ammonium Molybdate ◽

Hydrogen Phosphate ◽

Facile Synthesis of Hydroxyapatite Nanorods with Controlled Sizes and Morphologies

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.148-149.1584 ◽

2010 ◽

Vol 148-149 ◽

pp. 1584-1587

Author(s):

Sha Sha Lv ◽

Ning Wang ◽

Gui Cun Li ◽

Hong Rui Peng

Keyword(s):

Hydrothermal Method ◽

Calcium Chloride ◽

Hydrogen Phosphate ◽

Facile Synthesis ◽

High Quality ◽

Facile Hydrothermal Method ◽

High quality hydroxyapatite (HAP) nanorods have been synthesized at 180 °C by a facile hydrothermal method using calcium chloride and diammonium hydrogen phosphate as precursors in the absence of any surfactants. The diameters and lengths of HAP nanorods are in the range of 40-80 nm and 0.2-2.0 μm respectively. The sizes and morphologies of HAP nanorods can be controlled by adjusting the synthetic parameters, such as reaction temperatures, and types of surfactants. A possible mechanism was also proposed to explain the growth of the HAP nanorods.

Influence of Urea Doping on Spectral, Mechanical, Thermal, Nlo and Electrical Studies of Diammonium Hydrogen Phosphate Crystal

SSRN Electronic Journal ◽

10.2139/ssrn.3990195 ◽

2021 ◽

Author(s):

S. Vasumathi ◽

H. Johnson Jeyakumar ◽

Selvarajan P

Keyword(s):

Hydrogen Phosphate ◽

Electrical Studies ◽

Proton Conducting Electrolytes Synthesized with Diammonium Hydrogen Phosphate

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.421-422.471 ◽

2009 ◽

Vol 421-422 ◽

pp. 471-474 ◽

Cited By ~ 1

Author(s):

Dedy Eka Priyanto ◽

Hidenobu Shiroishi ◽

Satoshi Tanimoto ◽

Shunsuke Hirukawa ◽

Morihiro Saito ◽

...

Keyword(s):

Solid State ◽

Impedance Spectroscopy ◽

Molar Ratio ◽

Preparation Process ◽

Ac Impedance Spectroscopy ◽

Hydrogen Phosphate ◽

Proton Conducting ◽

Proton conducting ZrO2－yP2O5 (y = 1.0, 1.2, 1.4. 1.6, 1.8) electrolytes based on a shell-core structure were synthesized with diammonium hydrogen phosphate by a solid state reaction, and their conductivities were investigated by ac-impedance spectroscopy. Among the ZrO2-yP2O5 compositions, ZrO2－1.6P2O5 showed the highest proton conductivity of 0.13 Scm-1 at 250°C. The conductivity increased with increasing P2O5 molar ratio and were significantly influenced by heat-treatments in the preparation process. Polytetraflouroethylene (PTFE) was also mixed into these electrolytes in order to improve the mechanical strength and long term durability.

Diammonium Hydrogen Phosphate: An Efficient and Versatile Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives in Aqueous Media.

ChemInform ◽

10.1002/chin.200741114 ◽

2007 ◽

Vol 38 (41) ◽

Author(s):

Saeed Balalaie ◽

Morteza Bararjanian ◽

Masoumeh Sheikh-Ahmadi ◽

Shohreh Hekmat ◽

Peyman Salehi

Keyword(s):

Aqueous Media ◽

Hydrogen Phosphate ◽

One Pot ◽

One Pot Synthesis ◽

The One ◽

PENGARUH KONDISI KALSINASI PADA SINTESIS SENYAWA HYDROXYAPATITE

Photon: Jurnal Sain dan Kesehatan ◽

10.37859/jp.v2i1.121 ◽

2011 ◽

Vol 2 (1) ◽

pp. 13-21

Author(s):

Lisa Utami ◽

Syukri Arief ◽

Novesar Jamarun

Keyword(s):

Hydrogen Phosphate ◽

Kalsium fosfat telah menjadi perhatian yang menarik dalam bidang medis dan kedokteran karena biocompatibilitynya yang baik dan struktur serta komposisi kimianya yang sama dengan fasa mineral jaringan keras manusia (tulang dan gigi). Penelitian ini difoukuskan untuk mempelajari faktor yang mempengaruhi morfologi dan komposisi fasa dari senyawa hydroxyapatite dengan menggunakan prekusor diammonium hydrogen phosphate sebagai sumber fosfat serta pengaruh kalsinasi pada suhu 200, 400, 600, 800 dan 1000oC. Produk hidroxyapatite yang dihasilkan dikarakterisasi dengan FTIR, XRD, SEM dan TGA. Hidroxyapatite yang dihasilkan dengan variasi suhu kalsinasi mempengaruhi morfologi dan komposisi fasa dari senyawa kalsium fosfat yang dihasilkan. Fasa yang terbentuk sebelum sampel powder fosfat dikalsinasi dengan (NH4)2HPO4 sebagai sumber fosfat adalah Ca2P2O7.2H2O dengan ukuran kristal 67 nm. Ketika sampel powder kalsium fosfat dikalsinasi pada temperatur 600˚C fasa yang terbentuk dengan menggunakan (NH4)2HPO4 sebagai sumber fosfat adalah hydroxiapatite (HAP) dengan ukuran kristal 8,66 nm Dan ketika sampel dikalsinasi pada temperatur 1000˚C fasa yang dihasilkan yaitu Ca2P2O7 dan Ca3(PO4)2.