Phosphate (phosphoric acid) salts have the following pKa values: k1=2.15, k2=6.82, k3=12.38.
A5764
Ammonium phosphate dibasic
reagent grade, ≥98.0%
Sinónimos:
Ammonium hydrogenphosphate, Diammonium hydrogenphosphate, di-Ammonium hydrogenphosphate (sec)
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About This Item
Fórmula lineal:
(NH4)2HPO4
Número de CAS:
Peso molecular:
132.06
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.21
assay:
≥98.0%
grade:
reagent grade
form:
powder or crystals
solubility:
water: soluble 132 g/L at 20 °C
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grade
reagent grade
Quality Level
assay
≥98.0%
form
powder or crystals
pH
7.5-9.0 (25 °C, 132.1 g/L)
mp
155 °C (dec.) (lit.)
solubility
water: soluble 132 g/L at 20 °C
SMILES string
N.N.OP(O)(O)=O
InChI
1S/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)
InChI key
MNNHAPBLZZVQHP-UHFFFAOYSA-N
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Categorías relacionadas
Application
Ammonium phosphate dibasic may be used in the following studies:
- As an activator in generating activated carbon using waste ramulus mori as a source material.[1]
- To compose the mobile phase for the removal of synthetic impurities from voriconazole by HPLC.[2]
- Preparation of Eu ions doped oxyapatite Ca8Gd2(PO4)6O2 (CGP) samples.[3]
- Syringe-type cartridge based electric field-assisted solid phase extraction of sunset yellow, an anionic dye.[4]
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Los clientes también vieron
Burdock GA.
Encyclopedia of Food and Color Additives, 1, 144-144 (1997)
Study of metastable equilibria in the ternary system NH4H 2PO4-(NH4)2HPO4-H2O at -7 and -9 ?C.
Fluid Phase Equilibria, 354, 47-53 (2013)
Preparation and characterization of activated carbon from waste ramulus mori.
Tang YB, et al.
Chemical Engineering Journal, 203, 19-24 (2012)
Development and validation of a stability-indicating HPLC method for determination of voriconazole and its related substances.
Gu P and Li Y.
Journal of Chromatographic Science, 47(7), 594-598 (2009)
Effect of Ammonium Salts on an Illitic Shale.
Bauleke MP and Dodd CM.
Journal of the American Ceramic Society. American Ceramic Society, 40(10), 325-334 (1957)
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What is the Pka of Ammonium Phosphate dibasic?
1 answer-
Helpful?
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Why is the water solubility so much lower than the 57-58% reported elsewhere?
1 answer-
The solubility of this product is tested at 100 mg/mL in water while the product page suggests it is soluble at 132 g/L (132 mg/mL) in water. Neither of these are reported to be the maximum solubility rate, however these concentrations are suitable for most applications. The CRC Handbook lists the solubility of this compound at 69.5g/100g water. This is the rate published on PubChem. This information may be reviewed at the link below:
https://pubchem.ncbi.nlm.nih.gov/compound/24540#section=SolubilityHelpful?
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