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Cyclohexane

Cyclohexane
Cyclohexane
CAS No.
110-82-7
Chemical Name:
Cyclohexane
Synonyms
NAPHTHENE;Cyclohesan;Cicloesano;cyclohexan;Cykloheksan;cyclohexaan;CYCLOHEXANE;hexamethylen;HEXANAPHTHENE;HEXAMETHYLENE
CBNumber:
CB4193601
Molecular Formula:
C6H12
Formula Weight:
84.16
MOL File:
110-82-7.mol

Cyclohexane Properties

Melting point:
4-7 °C(lit.)
Boiling point:
80.7 °C(lit.)
Density 
0.779 g/mL at 25 °C(lit.)
vapor density 
2.9 (vs air)
vapor pressure 
168.8 mm Hg ( 37.7 °C)
refractive index 
n20/D 1.426(lit.)
Flash point:
-1 °F
storage temp. 
Store at RT.
solubility 
ethanol: miscible(lit.)
form 
Liquid
color 
colorless
Relative polarity
0.006
explosive limit
1.2-8.3%(V)
Water Solubility 
PRACTICALLY INSOLUBLE
FreezingPoint 
6.554℃
Merck 
14,2723
BRN 
1900225
CAS DataBase Reference
110-82-7(CAS DataBase Reference)
NIST Chemistry Reference
Cyclohexane(110-82-7)
EPA Substance Registry System
Cyclohexane(110-82-7)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xn,N
Risk Statements  11-38-50/53-65-67-20
Safety Statements  9-16-25-33-60-61-62
RIDADR  UN 1145 3/PG 2
WGK Germany  2
RTECS  GU6300000
3-10
TSCA  Yes
HazardClass  3
PackingGroup  II
Hazardous Substances Data 110-82-7(Hazardous Substances Data)
Toxicity LC in mice: ~60-70 mg/l air (Lazarew)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H313 May be harmful in contact with skin Acute toxicity,dermal Category 5 P312
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P331 Do NOT induce vomiting.
P391 Collect spillage. Hazardous to the aquatic environment
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

Cyclohexane price More Price(65)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1.00667 Cyclohexane 110-82-7 1EA $101 2017-11-08 Buy
Sigma-Aldrich 1.00667 Cyclohexane 110-82-7 2EA $215 2017-11-08 Buy
TCI Chemical C0469 Cyclohexane >99.5%(GC) 110-82-7 25mL $15 2017-11-08 Buy
TCI Chemical C0469 Cyclohexane >99.5%(GC) 110-82-7 500mL $23 2017-11-08 Buy
Alfa Aesar 022864 Cyclohexane, ACS, 99+% 110-82-7 1L $44.7 2018-11-16 Buy

Cyclohexane Chemical Properties,Uses,Production

Chemical Properties

colorless liquid

Uses

Suitable for HPLC, spectrophotometry, environmental testing

Definition

ChEBI: An alicyclic hydrocarbon comprising a ring of six carbon atoms; the cyclic form of hexane, used as a raw material in the manufacture of nylon.

Uses

Solvent for lacquers and resins. Paint and varnish remover. In the extraction of essential oils. In analytical chemistry for mol wt determinations (cryoscopic constant 20.3). In the manufacture of adipic acid, benzene, cyclohexyl chloride, nitrocyclohexane, cyclohexanol and cyclohexanone. In the manufacture of solid fuel for camp stoves. In fungicidal formulations (possesses slight fungicidal action). In the industrial recrystallization of steroids.

General Description

A clear colorless liquid with a petroleum-like odor. Used to make nylon, as a solvent, paint remover, and to make other chemicals. Flash point -4°F. Density 6.5 lb / gal (less than water) and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Liquid nitrogen dioxide was fed into a nitration column containing hot Cyclohexane, due to an error. An explosion resulted [MCA Case History 128(1962)] Incompatible with strong oxidizers.

Health Hazard

Dizziness, with nausea and vomiting. Concentrated vapor may cause unconsciousness and collapse.

Purification Methods

It is best to purify it by washing with conc H2SO4 until the washings are colourless, followed by water, aqueous Na2CO3 or 5% NaOH, and again water until neutral. It is then dried with P2O5, Linde type 4A molecular sieves, CaCl2, or MgSO4 then Na and distilled. Cyclohexane has been refluxed with, and distilled from Na, CaH2, LiAlH4 (which also removes peroxides), sodium/potassium alloy, or P2O5. Traces of *benzene can be removed by passage through a column of silica gel that has been freshly heated: this gives material suitable for ultraviolet and infrared spectroscopy. If there is much *benzene in the cyclohexane, most of it can be removed by a preliminary treatment with nitrating acid (a cold mixture of 30mL conc HNO3 and 70mL of conc H2SO4) which converts *benzene into nitrobenzene. The impure cyclohexane and the nitrating acid are placed in an ice bath and stirred vigorously for 15minutes, after which the mixture is allowed to warm to 25o during 1hour. The cyclohexane is decanted, washed several times with 25% NaOH, then water, dried with CaCl2, and distilled from sodium. Carbonyl-containing impurities can be removed as described for chloroform. Other purification procedures include passage through columns of activated alumina and repeated crystallisation by partial freezing. Small quantities may be purified by chromatography on a Dowex 710-Chromosorb W gas-liquid chromatographic column. Flammable liquid. [Sabatier Ind Eng Chem 18 1005 1926, Schefland & Jacobs The Handbook of Organic Solvents (Van Nostrand) p592 1953, Beilstein 5 IV 27.] Rapid purification: Distil, discarding the forerun. Stand distillate over Grade I alumina (5% w/v) or 4A molecular sieves.

Cyclohexane Preparation Products And Raw materials

Raw materials

Preparation Products


Cyclohexane Suppliers

Global( 294)Suppliers
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