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7778-53-2 molecular structure
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tripotassium phosphate

ChemBase ID: 130029
Molecular Formular: K3O4P
Molecular Mass: 212.266261
Monoisotopic Mass: 211.84454015
SMILES and InChIs

SMILES:
[K+].[K+].[K+].[O-]P(=O)([O-])[O-]
Canonical SMILES:
[O-]P(=O)([O-])[O-].[K+].[K+].[K+]
InChI:
InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
InChIKey:
LWIHDJKSTIGBAC-UHFFFAOYSA-K

Cite this record

CBID:130029 http://www.chembase.cn/molecule-130029.html

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NAMES AND DATABASE IDS

NAMES AND DATABASE IDS

Names Database IDs
IUPAC name
tripotassium phosphate
IUPAC Traditional name
tripotassium phosphate
Synonyms
Tripotassium phosphate
Potassium phosphate
tribasic
Tripotassium phosphate
Potassium phosphate tribasic
Phosphate buffer
Potassium phosphate buffer solution
Buffer solution HPCE pH 3.0
Potassium phosphate buffer solution
Buffer solution from phosphoric acid/Potassium dihydrogen phosphate
Phosphoric acid/Potassium dihydrogenphosphate solution
Potassium phosphate, tribasic monohydrate
Potassium phosphate monohydrate
Potassium phosphate, tribasic
Potassium phosphate, anhydrous
正磷酸钾
磷酸三钾
Phosphate buffer
磷酸钾缓冲液 溶液
用于 HPCE 的 pH 3.0 缓冲溶液
磷酸/磷酸二氢钾 溶液
磷酸/磷酸二氢钾缓冲溶液
磷酸钾缓冲液 溶液
磷酸钾单水合物
磷酸钾, 无水
CAS Number
7778-53-2
27176-10-9
EC Number
231-907-1
MDL Number
MFCD00150410
MFCD00036295
Merck Index
147660
PubChem SID
24888014
162224314
24887492
24898681
PubChem CID
62657
Chemspider ID
56408
Wikipedia Title
Tripotassium_phosphate

CALCULATED PROPERTIES

CALCULATED PROPERTIES

JChem
Acid pKa 1.7961261  H Acceptors
H Donor LogD (pH = 5.5) -3.3916447 
LogD (pH = 7.4) -3.9718332  Log P -1.0201038 
Molar Refractivity 11.2868 cm3 Polarizability 5.564544 Å3
Polar Surface Area 86.25 Å2 Rotatable Bonds
Lipinski's Rule of Five true 

PROPERTIES

PROPERTIES

Physical Property Safety Information Product Information Bioassay(PubChem)
Solubility
90 g/100 mL (20 °C) in water expand Show data source
insoluble in alcohol expand Show data source
Soluble in water. Insoluble in alcohol expand Show data source
Apperance
Granular expand Show data source
white powder
deliquescent
expand Show data source
Melting Point
1340°C expand Show data source
1380 °C expand Show data source
Flash Point
Non-flammable expand Show data source
Density
1.050 g/mL at 20 °C expand Show data source
2.564 expand Show data source
2.564 g/cm3 (17 °C) expand Show data source
2.564 g/mL at 25 °C(lit.) expand Show data source
Absorption Wavelength
λ: 210 nm Amax: 0.05 expand Show data source
λ: 220 nm Amax: 0.04 expand Show data source
λ: 230 nm Amax: 0.03 expand Show data source
λ: 300 nm Amax: 0.02 expand Show data source
λ: 500 nm Amax: 0.02 expand Show data source
pKb
1.6 expand Show data source
Conductivity
~9.5 mS/cm at 20 °C expand Show data source
Fluorescence
λex 200-600 nm; λem 300-800 nm (corresponds) expand Show data source
pH
1.9 expand Show data source
3.0 (25 °C) expand Show data source
Storage Warning
Hygroscopic expand Show data source
RTECS
TC8450000 expand Show data source
European Hazard Symbols
Irritant Irritant (Xi) expand Show data source
UN Number
1805 expand Show data source
MSDS Link
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
German water hazard class
1 expand Show data source
2 expand Show data source
Hazard Class
8 expand Show data source
Packing Group
3 expand Show data source
Risk Statements
36/38 expand Show data source
38-41 expand Show data source
R36, R38 expand Show data source
Safety Statements
26 expand Show data source
26-37 expand Show data source
26-39 expand Show data source
S26, S36 expand Show data source
TSCA Listed
expand Show data source
EU Index
Not listed expand Show data source
GHS Pictograms
GHS05 expand Show data source
GHS07 expand Show data source
GHS Signal Word
Danger expand Show data source
Main Hazard
Irritant expand Show data source
NFPA704
NFPA 704 diagram
0
2
0
expand Show data source
GHS Hazard statements
H314 expand Show data source
H315-H318 expand Show data source
H315-H319 expand Show data source
H315-H319-H313 expand Show data source
GHS Precautionary statements
P280-P305 + P351 + P338 expand Show data source
P280-P305 + P351 + P338-P310 expand Show data source
P280-P305+P351+P338-P302+P352-P321-P362-P312 expand Show data source
P280-P305+P351+P338-P302+P352-P321-P362-P332+P313 expand Show data source
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves expand Show data source
Faceshields, Gloves, Goggles expand Show data source
RID/ADR
UN 1805 8/PG 3 expand Show data source
Purity
≥95% expand Show data source
≥98% expand Show data source
95% expand Show data source
97% expand Show data source
Concentration
150 mM potassium phosphate expand Show data source
Grade
for HPCE expand Show data source
for HPLC expand Show data source
puriss. p.a. expand Show data source
purum expand Show data source
reagent grade expand Show data source
Suitability
corresponds to standard for filter test expand Show data source
corresponds to standard for RP gradient test expand Show data source
in accordance for HPCE expand Show data source
suitable for detection of free chlorine (DPD method) expand Show data source
Shelf Life
(limited shelf life, expiry date on the label) expand Show data source
Loss on Drying
≤4% loss on ignition, 800 °C expand Show data source
Quality
ampule expand Show data source
λ
in concentrate expand Show data source
abs.
UV absorption/200-800 nm in accordance expand Show data source
Linear Formula
K3PO4 expand Show data source

DETAILS

DETAILS

Wikipedia Wikipedia Sigma Aldrich Sigma Aldrich
Sigma Aldrich - 82622 external link
Preparation Note
prepared under clean room conditions and filtered through a 0.2 μm membrane filter
Sigma Aldrich - 79628 external link
Application
recommendation for use in ion pair chromatography
Packaging
concentrate (~0.33 M each) in ampules for 6x1 l 0.005 M ready-to-use solution (each component)
Sigma Aldrich - P5629 external link
包装
1 kg in poly bottle
10 kg in poly drum
25, 500 g in poly bottle

REFERENCES

REFERENCES

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PATENTS

PATENTS

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INTERNET

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