dihydrogen phosphate


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Related to dihydrogen phosphate: Calcium dihydrogen phosphate

di·hy·dro·gen phos·phate

one-third-neutralized phosphoric acid, for example, NaH2PO4, KH2PO4.
References in periodicals archive ?
Herein, we wish to report the synthesis of 3, 4dihydro-3-substituted-2H-naphtho [2,1-e][1,3] oxazine derivatives promoted by potassium dihydrogen phosphate as a catalyst (Scheme 1).
In the current work, the raw materials for the MPC formation were dead-burnt magnesia (MgO, Liaoning Xinrong Mining Co., Ltd., China) obtained by calcinating magnesium carbonate at 1700[degrees]C, and analytically pure ammonium dihydrogen phosphate (ADP, AR-grade, Jinshan Chemical Reagent Co., Ltd., Chengdu, China) and quartz powders were prepared by ball-milling quartz for 30 min.
35% (w/v) sodium dihydrogen phosphate was diluted by the supernatant and the solution pH was adjusted to 5 by 10% of HCL and 0.1 M NaOH solutions in a test tube.
The equilibria solid phase remains the same, and only anhydrous potassium nitrate and potassium dihydrogen phosphate exist as solid phases.
Bis-GMA, bisphenol A diglycidyl methacrylate; HEMA, 2-hydroxyethyl methacrylate; CQ, camphorquinone; UDMA, urethane dimethacrylate; 10-MDP, 10-methacryloyloxydecyl dihydrogen phosphate; GPDM, glycerol phosphate dimethacrylate; GDMA, glycerol dimethacrylate.
Potassium dihydrogen phosphate K[H.sub.2]P[O.sub.4], triethylamine, and phosphoric acid of AR Grade were obtained from Xilong Chemical Ltd.
Sodium bicarbonate (NaHC[O.sub.3]), ethanol, sodium dihydrogen phosphate (Na[H.sub.2]P[O.sub.4]), sodium hydrogen phosphate ([Na.sub.2]HP[O.sub.4]), and sodium carbonate ([Na.sub.2]C[O.sub.3]) were of analytical grade and purchased from the Tianjin No.
Buffer (pH: 7): Potassium dihydrogen phosphate (K[H.sub.2]P[O.sub.4])--14.35 g, dipotassium hydrogen phosphate ([K.sub.2]HP[O.sub.4])--25.0 g
Mono-p-methoxy phenyl phosphorodichloridate was converted into mono-p-methoxy phenyl dihydrogen phosphate and extracted with solvent ether.
It was noticed that with Zorbax Eclipse XDB C8 (4.6 x 150 mm, 5 m) column and recommended mobile phase comprising acetonitrile - methanol - potassium dihydrogen phosphate (22+34+44 v/v), the desired results obtained were not according the chromatograms provided by European Pharmacopeia (EP), but by using another column (ACE 5 C8) (4.6 x 150 mm, 5 m), an extra peak of diazepam degradant was obtained, which showed that by using appropriate mobile phase containing CH3CN- CH3OH- KH2PO4 (20+32+48 v/v), the better results can be achieved.
[75.] Yutaka W, Masaya T, Ozaki S (1995) Synthesis of 1D-distearoylphosphatidyl-myo-inositol 3,4,5-tris(dihydrogen phosphate).
Administration of sodium dihydrogen phosphate (sodium acid phosphate) for initial replenishment of phosphorous and Toldimfos sodium for maintenance has resulted in uneventful recovery (Muhammad et al., 2001) along with haematinics.