scholarly journals Vibrational Spectroscopic Studies of KDP, Pure and Doped with NH4Cl(0.1m)

2019 ◽  
Vol 8 (9S3) ◽  
pp. 795-797
Keyword(s):  
Molecular Structure ◽  
Potassium Dihydrogen Phosphate ◽  
Vibrational Analysis ◽  
Spectroscopic Studies ◽  
Food Additive ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Monopotassium Phosphate ◽  
Buffering Agent ◽  
Phosphorus And Potassium

Monopotassium phosphate or potassium dihydrogen phosphate, KDP (KH2PO4) is a soluble salt which is used as a fertilizer, a food additive and fungicide. It is a source of phosphorus and potassium. It is also a buffering agent. This chapter presents in detail the vibrational analysis on the molecular structure of the compound named KDP doped with NH4Cl by using RAMAN as investigating tools.

scholarly journals Crystal Structure of L-Histidinium 2-Nitrobenzoate

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Subramanian Natarajan ◽  
Kalimuthu Moovendaran ◽  
Jeyaperumal Kalyana Sundar ◽  
Krishnan Ravikumar
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
X Ray Diffraction ◽  
Potassium Dihydrogen ◽  
X Ray ◽  
Shg Efficiency

A new nonlinear optical organic compound, namely, L-histidinium 2-nitrobenzoate (abbreviated as LH2NB (I); ([C6H10N3O2]+ [C7H4NO4]−)), was synthesized. The molecular structure of LH2NB (I) was elucidated using single crystal X-ray diffraction technique. The second harmonic generation (SHG) efficiency of this compound is about two times that of the standard potassium dihydrogen phosphate crystals.

Inclusion of an anionic dye in the molecular structure of potassium dihydrogen phosphate crystal for SSDL applications

2019 ◽  
Vol 93 (8) ◽  
pp. 991-1000 ◽  
Author(s):  
P. R. Deepthi ◽  
Anu Sukhdev ◽  
P. Mohan Kumar ◽  
J. Shanthi ◽  
B. N. Pavithra ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Anionic Dye

scholarly journals Influence of cellulose additive on the granulation process of potassium dihydrogen phosphate

2020 ◽  
pp. 13-13
Author(s):  
Kristina Jancaitienė ◽  
Rasa Slinksienė
Keyword(s):  
Potassium Dihydrogen Phosphate ◽  
Physical And Mechanical Properties ◽  
Static Strength ◽  
Dihydrogen Phosphate ◽  
Potassium Fertilizer ◽  
Granulation Process ◽  
Potassium Dihydrogen ◽  
Different Types ◽  
Phosphorus And Potassium ◽  
Very High

KH2PO4, which was manufactured using conversion of KCl and NH4H2PO4, is concentrated crystalline chlorine-free phosphorus and potassium fertilizer. It is usually used as a component of liquid complex fertilizer, because KH2PO4 crystals melt very easily, have very high hygroscopicity and caking effect. Granulated products are considerably more convenient than powders, but KH2PO4 crystals are pure, hardly agglomerate, therefore they need a proper binder. This study aims to investigate the influence of cellulose additive and other different conditions on the granulation process and on the properties of the granulated product. Potassium dihydrogen phosphate was granulated using three different types of granulators (rotary, a fluidized bed and a drum) and by changing the amount of water used for irrigation purposes. The achieved results indicate that in order to obtain granulated potassium dihydrogen phosphate with optimal properties the use of water does not suffice; therefore, another binder (cellulose) was used in order to improve physical and mechanical properties of the granules. Was determined that cellulose additive (5%) improves some properties of the fertilizer such as, the amount of marketable fraction, SGN, pH, also reduces the hygroscopicity of the fertilizer granules about 2 times. But cellulose additive does not improves the static strength of granules and bulk density.

scholarly journals Optical Absorption Spectra of Vanadyl Ion (Impurities) in Three Host Crystal Compounds

1985 ◽  
Vol 40 (11) ◽  
pp. 1164-1166
Author(s):  
O. P. Agarwal ◽  
Prem Chand
Keyword(s):  
Optical Absorption ◽  
Potassium Dihydrogen Phosphate ◽  
Optical Data ◽  
Dihydrogen Phosphate ◽  
Host Crystal ◽  
Optical Absorption Study ◽  
Potassium Dihydrogen ◽  
Vanadyl Complexes ◽  
Vanadyl Ion ◽  
Magnesium Ammonium

Results of the optical absorption study of vanadyl ion doped in magnesium ammonium sulphate hexahydrate, rubidium sulphate and potassium dihydrogen phosphate single crystals at RT are reported. The nature of optical bands suggests a C4v symmetry of the Vanadyl complexes in conformity with the EPR results. Powder EPR data and optical data are correlated to obtain the MO coefficients.

scholarly journals The Strain Rate Sensitivity and Creep Behavior for the Tripler Plane of Potassium Dihydrogen Phosphate Crystal by Nanoindentation

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 369
Author(s):  
Jianhui Mao ◽  
Wenjun Liu ◽  
Dongfang Li ◽  
Chenkai Zhang ◽  
Yi Ma
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Creep Deformation ◽  
Potassium Dihydrogen Phosphate ◽  
Rate Sensitivity ◽  
Dislocation Nucleation ◽  
Machining Process ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Kdp Crystals

As an excellent multifunctional single crystal, potassium dihydrogen phosphate (KDP) is a well-known, difficult-to-process material for its soft-brittle and deliquescent nature. The surface mechanical properties are critical to the machining process; however, the characteristics of deformation behavior for KDP crystals have not been well studied. In this work, the strain rate effect on hardness was investigated on the mechanically polished tripler plane of a KDP crystal relying on nanoindentation technology. By increasing the strain rate from 0.001 to 0.1 s−1, hardness increased from 1.67 to 2.07 GPa. Hence, the strain rate sensitivity was determined as 0.053, and the activation volume of dislocation nucleation was 169 Å3. Based on the constant load-holding method, creep deformation was studied at various holding depths at room temperature. Under the spherical tip, creep deformation could be greatly enhanced with increasing holding depth, which was mainly due to the enlarged holding strain. Under the self-similar Berkovich indenter, creep strain could be reduced at a deeper location. Such an indentation size effect on creep deformation was firstly reported for KDP crystals. The strain rate sensitivity of the steady-state creep flow was estimated, and the creep mechanism was qualitatively discussed.

Assessment of Structural Stability of Dye-Doped Potassium Dihydrogen Phosphate Under Shocked Conditions

2021 ◽  
Author(s):  
A. Sivakumar ◽  
S. Sahaya Jude Dhas ◽  
P. Sivaprakash ◽  
Abdulrahman I. Almansour ◽  
Raju Suresh Kumar ◽  
...  
Keyword(s):  
Structural Stability ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen
Sign in / Sign up

Export Citation Format

Share Document