Chemistry, asked by anish200344, 6 months ago

the use of petroleum either is ​

Answers

Answered by botXashu
0

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.

Answered by Archismanmukherjee
0

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

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