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Cas Database |
| Name |
1,2-Pentanediol |
EINECS | 226-285-3 |
| CAS No. | 5343-92-0 | Density | 0.978 g/cm3 |
| PSA | 40.46000 | LogP | 0.13970 |
| Solubility | miscible with water | Melting Point |
50.86°C (estimate) |
| Formula | C5H12O2 | Boiling Point | 206 °C at 760 mmHg |
| Molecular Weight | 104.149 | Flash Point | 104.4 °C |
| Transport Information | N/A | Appearance | Clear colourless to slightly yellow oily liquid |
| Safety | 24/25 | Risk Codes | 36/38 |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
pentane-1,2-diol;1,2 Pentandiol; |
Article Data | 89 |
1,2-Pentanediol Synthetic route
- 108740-82-5
methyl 2-hydroxyvalerate
- 5343-92-0
1,2-pentanediol
| Conditions | Yield |
|---|---|
| With hydrogen at 225℃; under 75007.5 Torr; Temperature; Pressure; | 99.4% |
- 88945-70-4, 115626-59-0, 126372-01-8, 6938-26-7
ethyl 2-hydroxy-n-valerate
- 5343-92-0
1,2-pentanediol
| Conditions | Yield |
|---|---|
| With CuO#NiO; hydrogen at 215℃; under 157516 Torr; Temperature; Pressure; | 99.2% |
| Conditions | Yield |
|---|---|
| With water at 130℃; under 18751.9 Torr; | 91.2% |
| With water at 130℃; under 18751.9 Torr; | 90.2% |
| With water at 130℃; under 18751.9 Torr; | 90.2% |
| Conditions | Yield |
|---|---|
| With 5%PtO2-Al2O3; hydrogen In ethanol at 0 - 5℃; under 750.075 Torr; for 5h; | A 15% B 80% |
| With hydrogen; 5 % platinum dioxide on gamma-aluminum oxide In ethanol at 0 - 5℃; under 750.075 Torr; for 5h; | A n/a B 80% |
| With water; hydrogen at 120℃; under 22502.3 Torr; for 4h; chemoselective reaction; |
| Conditions | Yield |
|---|---|
| With hydrogen; water-moist catalyst (coating: 8percent Ru and 1percent Re) In water at 190℃; under 187519 Torr; for 14h; Product distribution / selectivity; | 72.1% |
| With hydrogen; 3% Ru 2%Re/C In water at 190℃; under 187519 Torr; for 8h; Product distribution / selectivity; | 64.6% |
| Conditions | Yield |
|---|---|
| Stage #1: furfural With 0.5% Pd/C; hydrogen; acetic acid; scandium tris(trifluoromethanesulfonate) at 100℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 14% B 23% C 62% |
- 124-38-9
carbon dioxide
- 201230-82-2
carbon monoxide
A
- 67-56-1
methanol
B
- 71-23-8
propan-1-ol
C
- 57-55-6
propylene glycol
D
- 626-95-9
1,4-Pentanediol
E
- 111-29-5
1 ,5-pentanediol
F
- 110-63-4
Butane-1,4-diol
G
- 60-29-7
diethyl ether
H
- 34557-54-5
methane
I
- 64-17-5
ethanol
J
- 6032-29-7
(+/-)-2-pentanol
K
- 18826-95-4, 107-88-0
1.3-butanediol
L
- 5343-92-0
1,2-pentanediol
M
- 74-84-0
ethane
N
- 74-98-6
propane
O
- 115-10-6
Dimethyl ether
P
- 540-67-0
ethyl methyl ether
Q
- 78-83-1
2-methyl-propan-1-ol
S
- 71-41-0
pentan-1-ol
T
- 3174-67-2
1,3-pentanediol
U
- 79-20-9
acetic acid methyl ester
V
- 67-63-0
isopropyl alcohol
W
- 78-92-2, 15892-23-6
iso-butanol
X
- 75-65-0
tert-butyl alcohol
Y
- 71-36-3
butan-1-ol
Z
- 584-03-2
1,2-dihydroxybutane
| Conditions | Yield |
|---|---|
| With hydrogen; Cu/Co/Al at 260 - 320℃; under 45004.5 - 75007.5 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H n/a I 28.5% J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a X n/a Y n/a Z n/a |
| With hydrogen; Cu/ZnO/Al2O3 at 285 - 300℃; under 45004.5 - 67506.8 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H n/a I 28.5% J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a X n/a Y n/a Z n/a |
- 124-38-9
carbon dioxide
- 201230-82-2
carbon monoxide
A
- 67-56-1
methanol
B
- 71-23-8
propan-1-ol
C
- 57-55-6
propylene glycol
D
- 626-95-9
1,4-Pentanediol
E
- 111-29-5
1 ,5-pentanediol
F
- 110-63-4
Butane-1,4-diol
G
- 60-29-7
diethyl ether
H
- 64-17-5
ethanol
I
- 6032-29-7
(+/-)-2-pentanol
J
- 18826-95-4, 107-88-0
1.3-butanediol
K
- 5343-92-0
1,2-pentanediol
L
- 115-10-6
Dimethyl ether
M
- 540-67-0
ethyl methyl ether
N
- 78-83-1
2-methyl-propan-1-ol
O
- 584-02-1
2-pentanol
P
- 71-41-0
pentan-1-ol
Q
- 3174-67-2
1,3-pentanediol
R
- 79-20-9
acetic acid methyl ester
S
- 67-63-0
isopropyl alcohol
T
- 78-92-2, 15892-23-6
iso-butanol
U
- 75-65-0
tert-butyl alcohol
V
- 71-36-3
butan-1-ol
W
- 584-03-2
1,2-dihydroxybutane
| Conditions | Yield |
|---|---|
| With hydrogen; Zn/Cr/K at 350 - 420℃; under 75007.5 - 135014 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H 28.5% I n/a J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a |
| Conditions | Yield |
|---|---|
| Stage #1: furfurylacetate With 5%-palladium/activated carbon; hydrogen; acetic acid at 100℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 24% B 15% C 56% |
| Conditions | Yield |
|---|---|
| Stage #1: (2-furyl)methyl alcohol With 0.5 % platinum on carbon; W(OTf)6; hydrogen; acetic acid at 150℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 24% B 12% C 54% |
| With Cu(50),Zn(50) (X%); hydrogen at 170℃; under 112511 - 187519 Torr; for 2h; Reagent/catalyst; Autoclave; | A 26% B 44.2% C 13% |
1,2-Pentanediol Chemical Properties
IUPAC Name: Pentane-1,2-diol
Molecular Formula: C5H12O2
Molecular Weight: 104.15g/mol
EINECS: 226-285-3
Density: 0.978 g/cm3
Flash Point: 104.4 °C
Freely Rotating Bonds: 5
Index of Refraction: 1.443
Molar Refractivity: 28.24 cm3
Molar Volume: 106.4 cm3
Polarizability: 11.19 ×10-24 cm3
Surface Tension: 36.6 dyne/cm
Boiling Point: 206 °C at 760 mmHg
Enthalpy of Vaporization: 51.45 kJ/mol
Vapour Pressure: 0.0575 mmHg at 25 °C
Appearance: pure colorless to light yellow liquid
Solubility : soluble in alcohol, ether and ethyl acetate and other organic solvent
1,2-Pentanediol , its cas register number is 5343-92-0. The chemical synonyms of 1,2-Pentanediol (CAS NO.5343-92-0) are Pentane-1,2-diol . Its product categories are Alcohols ; Monomers ; Polymer Science ; Organic Building Blocks ; Oxygen Compounds ; Polyols . The structure of 1,2-Pentanediol (CAS NO.5343-92-0) is
1,2-Pentanediol Uses
1,2-Pentanediol (CAS NO.5343-92-0) can be used as fungicide propiconazole intermediate.
1,2-Pentanediol Safety Profile
Risk Statements: 36/38
36/38: Irritating to eyes and skin
Safety Statements: 24/25
24/25: Avoid contact with skin and eyes
WGK Germany: 1
RTECS: SA0455000
F: 3
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