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Cas Database |
| Name |
Sodium dihydrogen phosphate monohydrate |
EINECS | 231-449-2 |
| CAS No. | 10049-21-5 | Density | 2.04 g/cm3 |
| PSA | 99.63000 | LogP | -0.55470 |
| Solubility | water: 1 M, clear, colorless | Melting Point |
100 °C |
| Formula | NaH2PO4.H2O | Boiling Point | 158 °C at 760 mmHg |
| Molecular Weight | 137.992 | Flash Point | N/A |
| Transport Information | N/A | Appearance | white crystals or crystalline powder |
| Safety | 26-36/37/39-36-39 | Risk Codes | 36/37/38-36 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
Monosodiumphosphate monohydrate;Phosphoric acid,monosodium salt, monohydrate (8CI,9CI); |
Article Data | 128 |
Sodium dihydrogen phosphate monohydrate Synthetic route
| Conditions | Yield |
|---|---|
| With nickel on silica for 2h; Reflux; | A n/a B 53% |
| Conditions | Yield |
|---|---|
| In neat (no solvent) heating to 100°C and thermal treatment;; | A 15% B 8% |
| In neat (no solvent) heating at 100°C and 1E-5Torr for 16h and thermal treatment;; product mixture;; | A 15% B 8% |
| In neat (no solvent) heating to 100°C and thermal treatment;; | A 15% B 8% |
| In neat (no solvent) heating at 100°C and 1E-5Torr for 16h and thermal treatment;; product mixture;; | A 15% B 8% |
- 765207-04-3
iron(III) phosphate
- 7647-14-5
sodium chloride
A
- 7647-01-0
hydrogenchloride
C
- 10049-21-5
sodium dihydrogenphosphate
| Conditions | Yield |
|---|---|
| With air In neat (no solvent) calcination of NaCl and FePO4 in a flow of air and vapor;; condensation of HCl; leaching residue of Fe2O3 and Na2HPO4;; |
| Conditions | Yield |
|---|---|
| With CO or SO2 or nitrogen oxides In water pressure;; mixture obtained;; | |
| With carbon dioxide In water byproducts: NaHCO3; with CO2 under pressure;; mixture obtained;; | |
| With carbon dioxide In water byproducts: NaHCO3; with CO2 under pressure;; mixture obtained;; |
| Conditions | Yield |
|---|---|
| With chlorine In not given soln. of Na3PO4 is treared with Cl2;; heterogeneous product mixture obtained; HClO can be distd.;; |
| Conditions | Yield |
|---|---|
| With hydrogenchloride; sulfuric acid In water byproducts: CaSO4; decompn. of Ca3(PO4)2 with HCl and pptn. of Ca(2+) with H2SO4; heating H3PO4 soln. with NaCl until all HCl is exhausted;; |
A
- 124-43-6
sodium pyrophosphate
B
- 10049-21-5
sodium dihydrogenphosphate
| Conditions | Yield |
|---|---|
| In neat (no solvent) on trituration;; |
| Conditions | Yield |
|---|---|
| In water neutralization of crude H3PO4 with Na2CO3 at 35 or 70°C in presence of BaCO3, FeSO4 and activated coal;; product-mixture, diphosphate:monophosphate=1.67:1 at 70 °C without preceding filtration, ratio 1.05:1 at 35 °C;; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: SO2; react. of 1 mol red P with up to 5 mol Na2SO4 in presence of H3PO4 at 300-335°C until development of SO2 ceases;; mixture obtained;; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: NaCl; with gaseous HcL;; | |
| In neat (no solvent) byproducts: NaCl; with gaseous HcL;; | |
| In neat (no solvent) byproducts: NaCl; on treatment with HCl gas;; in mixture with NaCl;; |
Sodium dihydrogen phosphate monohydrate Chemical Properties
Molecular Structure of Sodium dihydrogen phosphate monohydrate (CAS NO.10049-21-5):
.gif)
IUPAC Name: sodium dihydrogen phosphate hydrate
Empirical Formula: H4NaO5P
Molecular Weight: 137.9923
ACD/LogP: -2.15
of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): -5.41
ACD/LogD (pH 7.4): -6.38
ACD/BCF (pH 5.5): 1
ACD/BCF (pH 7.4): 1
H bond acceptors: 4
H bond donors: 3
Freely Rotating Bonds: 0
Polar Surface Area: 65.57 Å2
Boiling Point: 158 °C at 760 mmHg
Vapour Pressure: 1.41 mmHg at 25°C
Solubility H2O: 1 M
Sensitive: Hygroscopic
Merck: 14,8660
InChI
InChI=1/Na.H3O4P.H2O.H/c;1-5(2,3)4;;/h;(H3,1,2,3,4);1H2;/rHNa.H3O4P.H2O/c;1-5(2,3)4;/h1H;(H3,1,2,3,4);1H2
Smiles
P(O)(O)(O)=O.[Na].O
EINECS: 231-449-2
Product Categories: Cytochemistry Products; Hematology and Histology; N - Z;All Food Control Media (alphabetical)Microbiology; All Liquid Media/BrothsMedia by Application; Media;Media by Application; Media for Food Control; Media for Water Control; Media for Water Control (General)Media; Media from A
Sodium dihydrogen phosphate monohydrate Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38-36
R36/37/38:Irritating to eyes, respiratory system and skin.
R36:Irritating to eyes.
Safety Statements: 26-36/37/39-36-39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S36:Wear suitable protective clothing.
S39:Wear eye / face protection.
WGK Germany: 1
RTECS: WA1900000
F: 3
Sodium dihydrogen phosphate monohydrate Specification
Sodium dihydrogen phosphate monohydrate , with CAS number of 10049-21-5, can be called Sodium dihydrogen phosphate hydrate (1:1:1) ; Monosodium orthophosphate ; Monosodium phosphate ; Phosphoric acid, monosodium salt, monohydrate ; sodium phosphate, monobasic . It is a white crystal or crystalline powder.
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