Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name
Systematic IUPAC name
Other names
Carboxybenzene; E210 ; Dracylic acid; Phenylmethanoic acid
Identifiers
3D model (JSmol )
Beilstein Reference
636131
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard
100.000.562
EC Number
E number
E210 (preservatives)
Gmelin Reference
2946
KEGG
MeSH
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RTECS number
UNII
InChI
SMILES
Properties
C 7 H 6 O 2
Molar mass
122.123 g·mol−1
Appearance
Colorless crystalline solid
Odor
faint, pleasant odor
സാന്ദ്രത
1.2659 g/cm3 (15 °C) 1.0749 g/cm3 (130 °C)[ 2]
ദ്രവണാങ്കം
ക്വഥനാങ്കം
250 °C (482 °F; 523 K)[ 3] 370 °C (698 °F; 643 K) decomposes[ 2]
1.7 g/L (0 °C) 2.7 g/L (18 °C) 3.44 g/L (25 °C) 5.51 g/L (40 °C) 21.45 g/L (75 °C) 56.31 g/L (100 °C)[ 2] [ 4]
Solubility
soluble in acetone , benzene , CCl4 , CHCl3 , alcohol , ethyl ether , hexane , phenyls , liquid ammonia , acetates
Solubility in methanol
30 g/100 g (-18 °C) 32.1 g/100 g (-13 °C) 71.5 g/100 g (23 °C)[ 2]
Solubility in ethanol
25.4 g/100 g (-18 °C) 47.1 g/100 g (15 °C) 52.4 g/100 g (19.2 °C) 55.9 g/100 g (23 °C)[ 2]
Solubility in acetone
54.2 g/100 g (20 °C)[ 2]
Solubility in olive oil
4.22 g/100 g (25 °C)[ 2]
Solubility in 1,4-Dioxane
55.3 g/100 g (25 °C)[ 2]
log P
1.87
ബാഷ്പമർദ്ദം
0.16 Pa (25 °C) 0.19 kPa (100 °C) 22.6 kPa (200 °C)[ 5]
Acidity (pK a )
4.202[ 6]
-70.28·10−6 cm3 /mol
1.5397 (20 °C) 1.504 (132 °C)[ 2]
വിസ്കോസിറ്റി
1.26 mPa (130 °C)
Structure
Monoclinic
planar
Dipole moment
1.72 D in Dioxane
Thermochemistry
146.7 J/mol·K[ 5]
Std molar entropy (S ⦵ 298 )
167.6 J/mol·K[ 2]
Std enthalpy of formation (Δf H ⦵ 298 )
-385.2 kJ/mol[ 2]
Std enthalpy of combustion (Δc H ⦵ 298 )
-3228 kJ/mol[ 5]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Irritant
GHS labelling :
Pictograms
[ 7]
Signal word
Danger
Hazard statements
H318 , H335 [ 7]
Precautionary statements
P261 , P280 , P305+P351+P338 [ 7]
NFPA 704 (fire diamond)
Flash point
121.5 °C (250.7 °F; 394.6 K)[ 3]
Autoignition temperature
571 °C (1,060 °F; 844 K)[ 3]
Lethal dose or concentration (LD, LC):
LD50 (median dose )
1700 mg/kg (rat, oral)
Safety data sheet (SDS)
JT Baker
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Y verify (
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Y /
N ?)