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Name	Diethyl phosphoric acid	EINECS	N/A
CAS No.	598-02-7	Density	1.195g/cm³
PSA	65.57000	LogP	1.15980
Solubility	N/A	Melting Point	6 °C
Formula	C4H11 O4 P	Boiling Point	203 °C
Molecular Weight	154.103	Flash Point	74.9°C
Transport Information	N/A	Appearance	N/A
Safety	A poison by ingestion. When heated to decomposition it emits toxic vapors of PO_x.	Risk Codes	R36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Ethylphosphate ((C2H5O)2(HO)PO) (6CI); DEP; Diethyl acid phosphate; Diethyl hydrogenphosphate; Diethyl phosphate; Diethyl phosphoric acid; NSC 97178; O,O-Diethylhydrogen phosphate	Article Data	208

Diethyl phosphoric acid Synthetic route

: 150943-28-5
diethyl pyren-1-ylmethyl phosphate

: 598-02-7
Diethyl phosphate

Conditions

Conditions	Yield
In methanol; benzene for 2h; Product distribution; Quantum yield; Irradiation; other phosphates; var. solvents;	100%

: C13H19NO3P(1-)*Li(1+)

: 100-52-7
benzaldehyde

A: 598-02-7
Diethyl phosphate

B: 113237-57-3
α-methyltrans-cinnamyl N-phenylimine

Conditions

Conditions	Yield
In tetrahydrofuran at 0 - 25℃; for 3h;	A n/a B 98%

: 814-49-3
diethyl chlorophosphate

: 598-02-7
Diethyl phosphate

Conditions

Conditions	Yield
With sodium hydroxide In tetrahydrofuran for 0.5h;	95%
With sodium hydroxide In tetrahydrofuran; water at 0℃;	92%
With sodium hydroxide at 30 - 40℃;	90%

: 1108208-57-6
tetrachlorobis[4-(dimethylamino)pyridine]phosphorus(V) chloride

: 64-17-5
ethanol

: 598-02-7
Diethyl phosphate

Conditions

Conditions	Yield
at 60℃; for 4.5h;	95%

: 1108208-58-7
cis-tetrachlorobis(1-methylimidazole)phosphorus(V) chloride

: 64-17-5
ethanol

: 598-02-7
Diethyl phosphate

Conditions

Conditions	Yield
at 60℃; for 4.5h;	95%

: 133323-03-2
Diethyl 2-(methylsulfonylamino)phenyl phosphate

A: 598-02-7
Diethyl phosphate

B: 19299-40-2
N-cyclohexylmethanesulfonamide

Conditions

Conditions	Yield
With hydrogen; acetic acid; trifluoroacetic acid; platinum(IV) oxide at 20℃; under 750.06 Torr; for 20h;	A 93% B 73%

: 884-90-2
benzyl diethyl phosphate

: 598-02-7
Diethyl phosphate

Conditions

Conditions	Yield
With trifluorormethanesulfonic acid In benzene at 80℃; for 4h; Inert atmosphere;	93%
With trifluorormethanesulfonic acid In toluene at 120℃; for 24h; Sealed tube; Schlenk technique; Inert atmosphere;	93%

: 30094-32-7
(diethoxy phosphoryl) fluoroacetic acid

: 100-52-7
benzaldehyde

A: 598-02-7
Diethyl phosphate

B: 20397-61-9
(Z)-2-fluoro-3-phenylacrylic acid

Conditions

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane 1.) -78 deg C, 1 h; 2.) 15 h room temperature;	A n/a B 91%

: 30094-32-7
(diethoxy phosphoryl) fluoroacetic acid

: 123-11-5
4-methoxy-benzaldehyde

A: 598-02-7
Diethyl phosphate

B: 26928-12-1
(Z)-2-fluoro-3-(4-methoxyphenyl)-2-propenoic acid

Conditions

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane 1.) -78 deg C, 1 h; 2.) 15 h room temperature;	A n/a B 90%

: 762-04-9
phosphonic acid diethyl ester

A: 598-02-7
Diethyl phosphate

B: 107-49-3
Tetraethyl pyrophosphate

Conditions

Conditions	Yield
With iodosylbenzene In tetrahydrofuran for 48h; Heating;	A 90% B 5%
With iodosylbenzene In benzene for 0.5h; Product distribution; Further Variations:; Solvents; Heating;	A 11% B 77%
With iodosylbenzene In benzene for 0.5h; Heating;	A 11% B 77%

Diethyl phosphoric acid Chemical Properties

Product Name: Diethyl phosphoric acid (CAS NO.598-02-7)

Molecular Formula: C₄H₁₁O₄P
Molecular Weight: 154.1g/mol
Mol File: 598-02-7.mol
Einecs: 209-912-5
Appearance: Clear colorless to light yellow-orange liquid
Melting Point: 6 °C
Boiling point: 200.3 °C at 760 mmHg
Flash Point: 74.9 °C
Density: 1.195 g/cm³
Surface Tension: 37.6 dyne/cm
Enthalpy of Vaporization: 48.11 kJ/mol
Vapour Pressure: 0.137 mmHg at 25°C
XLogP3-AA: -0.3
H-Bond Donor: 1
H-Bond Acceptor: 4
Structure Descriptors of Diethyl phosphoric acid (CAS NO.598-02-7):
IUPAC Name: diethyl hydrogen phosphate
Canonical SMILES: CCOP(=O)(O)OCC
InChI: InChI=1S/C4H11O4P/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3,(H,5,6)
InChIKey: UCQFCFPECQILOL-UHFFFAOYSA-N
Product Categories: Alphabetic; D; DID - DINEnvironmental Standards; Metabolites; Pesticides&Metabolites

Diethyl phosphoric acid Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LDLo	oral	> 250mg/kg (250mg/kg)		National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. Vol. 5, Pg. 37, 1953.

Diethyl phosphoric acid Consensus Reports

Reported in EPA TSCA Inventory.

Diethyl phosphoric acid Safety Profile

A poison by ingestion. When heated to decomposition it emits toxic vapors of PO_x.
Safety Information of Diethyl phosphoric acid (CAS NO.598-02-7):
Hazard Codes: Xi Irritant
Risk Statements: 36/37/38
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements: 37/39-26-36
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection

Diethyl phosphoric acid Specification

Diethyl phosphoric acid ,its CAS NO. is 598-02-7,the synonyms is Diethyl acid phosphate ; Diethyl hydrogen phosphate ; Diethyl phosphate ; EINECS 209-912-5 ; Ethyl phosphate, (ETO)₂(HO)PO ; Ethyl phosphate, di- ; NSC 97178 ; O,O-Diethyl hydrogen phosphate ; Phosphoric acid, diethyl ester .

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