the use of petroleum either is
Answers
Answer:
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Explanation:
Petroleum ether (pet ether) is a commonly used solvent due to its relatively low cost compared to other organic solvents. ... Many labs use petroleum ether as a single solvent while other labs use a specific blend (ratio) of petroleum ether and diethyl ether for lipid extraction.
Answer:
Petroleum ether is the petroleum fraction consisting of aliphatic hydrocarbons and boiling in the range 35‒60 °C, and commonly used as a laboratory solvent.[4] Despite the name, petroleum ether is not classified as an ether; the term is used only figuratively, signifying extreme lightness and volatility.
Petroleum ether
[1]
[2]
[3]
Names
Other names
Light ligroin; Light petroleum; pether
Identifiers
CAS Number
8032-32-4 ☑
8030-30-6 ☑
ChemSpider
none
ECHA InfoCard
100.029.498
EC Number
232-453-7
UNII
5OQ4BMR99T ☑
O3L624621X ☑
CompTox Dashboard (EPA)
DTXSID5027699 Edit this at Wikidata
Properties
Molar mass
82.2 g/mol
Appearance
Volatile, clear, colorless and non-fluorescent liquid
Density
0.653 g/mL
Melting point
< −73 °C (−99 °F; 200 K)
Boiling point
42–62 °C (108–144 °F; 315–335 K)
Solubility in water
insoluble
Solubility in Ethanol
soluble
Vapor pressure
31 kPa (20 °C)
Refractive index (nD)
1.370
Viscosity
0.46 mPa·s
Hazards
GHS pictograms
GHS02: Flammable GHS07: Harmful GHS08: Health hazard GHS09: Environmental hazard
GHS Signal word
Danger
GHS hazard statements
H225, H304, H315, H336, H411
GHS precautionary statements
P210, P243, P273, P301+310, P303+361+353, P301+330+331, P403+235
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
420
Flash point
< 0 °C (32 °F; 273 K)
Autoignition
temperature
246.11 °C (475.00 °F; 519.26 K)
Explosive limits
1.4–5.9 %
Threshold limit value (TLV)
300 ppm (1370 mg/m3) 8 h TWA (TWA)
Lethal dose or concentration (LD, LC):
LC50 (median concentration)
3400 ppm (rat, 4 h)
NIOSH (US health exposure limits):
PEL (Permissible)
100 ppm (400 mg/m3) 8 h TWA
REL (Recommended)
100 ppm (400 mg/m3) 10 h TWA
IDLH (Immediate danger)
1000 ppm
Related compounds
Related compounds
Ligroin, Petroleum benzine, Petroleum spirit, Stoddard solvent, Naphtha, White spirit