scholarly journals HYDROTHERMAL TRANSFORMATION OF CALCIUM HYDROGEN PHOSPHATE DIHYDRATE INTO MAGNESIUM WHITLOCKITE

2021 ◽  
Vol 37 (0) ◽  
pp. 21-25
Author(s):  
Toshiisa Konishi ◽  
Sadayuki Watanabe
Keyword(s):  
Hydrogen Phosphate ◽  
Phosphate Dihydrate ◽  
Hydrothermal Transformation

scholarly journals Fabrication of Carbonate Apatite Block through a Dissolution–Precipitation Reaction Using Calcium Hydrogen Phosphate Dihydrate Block as a Precursor

Materials ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 374 ◽  
Author(s):  
Kanji Tsuru ◽  
Ayami Yoshimoto ◽  
Masayuki Kanazawa ◽  
Yuki Sugiura ◽  
Yasuharu Nakashima ◽  
...  
Keyword(s):  
Precipitation Reaction ◽  
Carbonate Apatite ◽  
Hydrogen Phosphate ◽  
Phosphate Dihydrate

scholarly journals Magnetically Induced Crystal Alignment of Calcium Hydrogen Phosphate Dihydrate

2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Takeshi Hagio ◽  
Kazushige Yamauchi ◽  
Kazuhiko Iwai
Keyword(s):  
Hydrogen Phosphate ◽  
Phosphate Dihydrate ◽  
Crystal Alignment

scholarly journals Preparation and evaluation of an ispaghula based directly compressible matrixing agent for controlled release

2008 ◽  
Vol 58 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Anita Lalwani ◽  
Jolly Parikh
Keyword(s):  
Controlled Release ◽  
Hydroxypropyl Methylcellulose ◽  
Hydrogen Phosphate ◽  
Lattice Design ◽  
Phosphate Dihydrate ◽  
Simplex Lattice Design ◽  
Dependent Variables ◽  
Simplex Lattice ◽  
Preparation And Evaluation

Preparation and evaluation of an ispaghula based directly compressible matrixing agent for controlled releaseThe objective of the present investigation was to prepare and evaluate an ispaghula husk based directly compressible (DC) adjuvant that can be used as matrixing agent using an agglomeration technique. Addition of hydroxypropyl methylcellulose was found necessary to improve cohesion. Lactose (X1), calcium hydrogen phosphate dihydrate (X2) and Avicel PH101 (X3), used along with ispaghula in preparation of agglomerates, were selected as three independent variables in a simplex lattice design affecting compressional and dissolution characteristics of the drug from the DC adjuvant. The agglomerates were evaluated for their flow properties. Tablets were prepared using 70% agglomerates and 30% acetaminophen, a poorly compressible drug, and were subjected toin vitrodrug release study. Amounts of the drug released at the end of 60 min (Y60), 300 min (Y300) and 480 min (Y480) were selected as dependent variables in a simplex lattice design. Batch IH05 that contained lactose and calcium hydrogen phosphate dihydrate in a 1:2 ratio could control the release for 12 hours and thus form the basis for twice a-day-dosing.

Synthesis of β-Tricalcalcium Phosphate Block by Wet Milling Method of Calcium Hydrogen Phosphate Dihydrate and Calcium Carbonate

2015 ◽  
Vol 1087 ◽  
pp. 384-388
Author(s):  
A. Nurazreena ◽  
Kung Shiuh Lau
Keyword(s):  
Calcium Carbonate ◽  
Crystallite Size ◽  
Single Phase ◽  
Sintering Temperature ◽  
Xrd Analysis ◽  
Wet Milling ◽  
Hydrogen Phosphate ◽  
Phosphate Dihydrate ◽  
Milling Method

Synthesis of β-TCP block by wet milling method of calcium hydrogen phosphate dihydrate (CaHPO4Ÿ2H2O) and calcium carbonate (CaCO3) was evaluated. Uniaxially pressed block at 5, 10 and 15 MPa of mixture CaHPO4Ÿ2H2O and CaCO3 were sintered at 1000°C, 1050°C and 1100°C. XRD analysis revealed that single phase β-TCP was obtained at all press pressure and sintering temperature. The crystallinity and crystallite size of the obtained β-TCP increased with increasing press pressure and sintering temperature.

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