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Name	1,2-Dimethylcyclohexane	EINECS	209-509-4
CAS No.	583-57-3	Density	0.793 g/mL at 20 °C(lit.)
PSA	0.00000	LogP	2.83260
Solubility	6.795mg/L(30 oC)	Melting Point	-71.62°C (estimate)
Formula	C8H16	Boiling Point	127-130 °C(lit.)
Molecular Weight	112.215	Flash Point	60 °F
Transport Information	UN 2263 3	Appearance	clear liquid
Safety	A very dangerous fire hazard when exposed to heat, flame, or oxidizers. When heated to decomposition it emits acrid smoke and fumes.	Risk Codes	11-65
Molecular Structure		Hazard Symbols	FXn
Synonyms	1,2-Dimethylcyclohexane;NSC 43769; o-Dimethylcyclohexane	Article Data	50

1,2-Dimethylcyclohexane Synthetic route

: 95-47-6
o-xylene

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With hydrogen; [(norbornadiene)rhodium(I)chloride]2; phosphinated polydiacetylene In n-heptane at 30℃; under 60800 Torr; for 1.8h;	100%
With Ti8O8(14+)6C8H4O4(2-)4O(2-)3.3Li(1+)0.7Co(2+)0.7C4H8O0.7H(1-); hydrogen In neat (no solvent) at 120℃; under 37503.8 Torr; for 18h;	100%
With hydrogen In water at 100℃; under 15001.5 Torr; for 5h;	99%

: 1674-10-8
1,2-dimethylcyclohexene

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With hydrogen; 1,5-hexadienerhodium(I)-chloride dimer In various solvent(s) for 6h; Ambient temperature; pH=7.6;	79%

: 2-methyloct-7-enenitrile

A: 583-57-3
1,2-Dimethyl-cyclohexane

B: 4126-78-7
methylcycloheptane

Conditions

Conditions	Yield
With potassium; tert-butyl alcohol In N,N,N,N,N,N-hexamethylphosphoric triamide; diethyl ether at 0℃; for 3h;	A 71% B 28%

: 1759-64-4
1,6-dimethyl-1-cyclohexene

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With hydrogen; 1,5-hexadienerhodium(I)-chloride dimer In various solvent(s) for 13h; Ambient temperature; pH=7.6;	70%

: 95-47-6
o-xylene

A: 583-57-3
1,2-Dimethyl-cyclohexane

B: 1674-10-8
1,2-dimethylcyclohexene

C: 1759-64-4
1,6-dimethyl-1-cyclohexene

Conditions

Conditions	Yield
With hydrogen; 1-butyl-3-methylimidazolium Tetrafluoroborate; Rh nanoparticles stabilized by poly(NVP-co-VBIMCl) at 75℃; under 30402 Torr; for 12h; Product distribution;	A 68% B 16% C 16%

: C16H16O4

A: 583-57-3
1,2-Dimethyl-cyclohexane

B: 5715-23-1
3,4-dimethylcyclohexanol

C: C8H16O2

Conditions

Conditions	Yield
With hydrogen; lanthanum(lll) triflate In isopropyl alcohol at 150℃; for 8h;	A 33% B 41% C 61%

: 1122-02-7
1-chloro-1,2-dimethyl-cyclohexane

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With diethyl ether; sodium

: 496-11-7
INDANE

A: 583-57-3
1,2-Dimethyl-cyclohexane

B: 4923-77-7, 4923-78-8, 130365-40-1, 130365-41-2, 130365-44-5, 130365-45-6, 130365-48-9, 130365-49-0, 3728-54-9
1-methyl-2-ethylcyclohexane

Conditions

Conditions	Yield
With nickel kieselguhr; hydrogen at 240 - 250℃; under 73550.8 Torr; optically inactive substance of uncertain configuration;

: 5402-29-9
1,2-dimethylcyclohexanol

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With zinc(II) chloride Hydrierung des Reaktionsprodukts in Gegenwart von Nickel bei 150grad;
Multi-step reaction with 2 steps 1: PCl3 2: sodium; diethyl ether View Scheme

: 5715-23-1
3,4-dimethylcyclohexanol

: 583-57-3
1,2-Dimethyl-cyclohexane

Conditions

Conditions	Yield
With hydrogen; vanadium(V) oxide; iron at 326.9℃; 1.5E5 Pa; Yield given;

1,2-Dimethylcyclohexane Chemical Properties

IUPAC Name: 1,2-Dimethylcyclohexane
CAS: 583-57-3
Formula : C₈H₁₆
Molecular Weight: 112.21
Molecular Structure of 1,2-Dimethylcyclohexane (583-57-3):

Density: 0.766 g/cm³
Flash Point: 15.6 °C
Boiling Point: 125.9 °C at 760 mmHg
Index of Refraction: 1.42
Molar Refractivity: 37.08 cm³
Molar Volume: 146.4 cm³
Polarizability: 14.7×10^-24cm³
Surface Tension: 22.4 dyne/cm
Enthalpy of Vaporization: 34.87 kJ/mol
Appearance: clear colourless liquid
Vapour Pressure: 14.5 mmHg at 25°C
Water Solubility: 11.67 (mg/L) at 25°C

1,2-Dimethylcyclohexane Safety Profile

A very dangerous fire hazard when exposed to heat, flame, or oxidizers. When heated to decomposition it emits acrid smoke and fumes.
Safety Information about 1,2-Dimethylcyclohexane (583-57-3):
Hazard Codes:
F: Xn:
Risk Statements about 1,2-Dimethylcyclohexane (583-57-3):
R11: Highly Flammable.
R65: Harmful: May cause lung damage if swallowed.
Safety Statements about 1,2-Dimethylcyclohexane (583-57-3):
S9: Keep container in a well-ventilated place.
S16: Keep away from sources of ignition - No smoking.
S33: This material and its container must be disposed of in a safe way.
S62: If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label.
RIDADR: UN 2263 3/PG 2
WGK Germany: 3
HazardClass: 3
PackingGroup: II

1,2-Dimethylcyclohexane Specification

The chemical synonyms of 1,2-Dimethylcyclohexane (583-57-3) are 1,2-Dimethylcyclohexane ; 2,3-Dimethylcyclohexane ; Hexahydro-o-xylene ; o-Dimethylcyclohexane ; 1,2-Dimethylcyclohexane,mixtureofcisandtrans ; 1,2-Dlmethylcyclohexane ; Cyclohexane, 1,2-dimethyl- ; Cyclohexane,1,2-dimethyl- .It may cause eye irritation.Causes skin irritation.May be harmful if absorbed through the skin.May cause irritation of the digestive tract.May be harmful if swallowed.May cause respiratory tract irritation.May be harmful if inhaled. Use spark-proof tools and explosion proof equipment.Avoid breathing dust,vapor,mist,or gas.It shoud avoid contact with eyes,skin, and clothing.Take precautionary measures against static discharges.Keep away from sources of ignition.Store in a cool,dry place.Store in a tightly closed container.Flammables-area.

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