CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «LIGROIN»
Descoperă întrebuințarea
ligroin în următoarea selecție bibliografică. Cărți în legătură cu
ligroin și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Laboratory Experiments for Introduction to General, Organic ...
Place into each test tube 5 drops of the appropriate hydrocarbon: hexane,
cyclohexene, toluene, unknown A, unknown B, unknown C. Add about 5 drops of
ligroin dropwise into each test tube. Ligroin is a nonpolar solvent. Is there a
separation ...
Frederick Bettelheim, Joseph Landesberg, 2012
2
The Chemistry of Heterocyclic Compounds, Condensed ...
Yellow needles (acetic acid) 28 H H 120.5-'121 Yellow prisms (ligroin) 28 H M
277-281 (dec.) Yellow needles by 'sublimation 28 H C 201 Red crystals (ethyl
acetate) 40 H U — Methiodide deriv., mp 236-237"; 40 ethiodide deriv., mp 227-
2280 ...
3
Geology and Geochemistry of Oil and Gas
In Russia, the following main fractions are distinguished: (1) ''benzine'' fraction
with boiling points ranging from 401C to 2001C, (2) ''ligroin'' fraction with boiling
points ranging from 2001C to 3501C, and (3) residual oil with boiling points ...
L. Buryakovsky, N.A. Eremenko, M.V. Gorfunkel, 2005
4
Understanding the Interaction of Dimethyl(acetylacetonato) ...
ligroin layer was removed. The beaker containing the aqueous layer was washed
with 15-25 mL ligroin and readded to the funnel to improve the yield. The
extraction step was repeated five times from the HCl addition step. The clear
ligroin ...
5
Purification of Laboratory Chemicals
Crystallise the aniline from ligroin. The acetanilide has m 120-122o (from EtOH or
*C6H6). [Beilstein 12 H 626.] 2,4,5-Trichloroaniline [636-30-6] M 196.5, m 96.5o,
b 270o/760mm, pK 1.09. Crystallise the aniline from ligroin. [Beilstein 12 H 627 ...
W.L.F. Armarego, Christina Chai, 2012
6
A Microscale Approach to Organic Laboratory Techniques
Confusion is particularly easy when one is selecting a container of solvent from
the supply shelf. Ligroin, or high—boiling petroleum ether, is like petroleum ether
in composition except that compared with petroleum ether, ligroin generally ...
Donald Pavia, George Kriz, Gary Lampman, 2012
7
Liquid Column Chromatography: A Survey of Modern Techniques ...
The fourth band is a mixture of DNP-threonine and DNP-serine, which is
separated by washing first with chloroform—(33% diethyl ether—ligroin) (4:1)
and then with the same mixture in the ratio 422. In the first instance, DNP-
threonine is ...
K. Macek, Z. Deyl, J. Janák, 2011
8
Robert Burns Woodward: Architect and Artist in the World of ...
The residual red oil was boiled with ligroin (b. p. 70-90°). After concentrating the
ligroin solution crystallization was induced by cooling in Dry Ice and scratching
the sides of the vessel with a glass rod . However, this material was still gummy, ...
Otto Theodor Benfey, Peter John Turnbull Morris, 2001
9
A Textbook of Organic Chemistry
This involves the dissolution of these substances into a high boiling liquid and
then separation by distillation. Light petroleum ether consists mainly of pentanes
and hexanes. Ligroin is a mixture of heptanes with the boiling range from 60-90°.
10
International Critical Tables of Numerical Data, Physics, ...
(660); Co salt: H20 (»»»); Na salt: H20 (»82, 659,| 660); NH« salt: H20 (240, 660)
Trithiocarbonic acid: CHCls, CeHsCHj, ligroin (212J); Ba salt: H20 (*«t)
Perthiocarbonic acid: CHClj, CcHjCHi, ligroin (212J); Na salt: H20 (2i2t) Methyl
iodide ...
Edward Wight Washburn, Callie Hull, 1929
ȘTIRI NOI CARE INCLUD TERMENUL «LIGROIN»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
ligroin în contextul următoarelor știri.
Meet Bertha Benz, the World's First Female Automotive Pioneer
The trio took turns steering the vehicle, pushing it up hills and keeping it running. They had to refill the cooling water frequently and find fuel — called “ligroin” in ... «OZY, Iul 15»
How Bertha Benz set the wheels in motion
She had to find ligroin as a fuel, which was available only at apothecary shops. A blacksmith had to help mend a chain at one point and the ... «Scottish Daily Record, Apr 15»
29 January 1886: Karl Benz patents the motor car
... she drove a round-trip of more than 96km, or over 60 miles, stopping over at the Wiesloch city pharmacy to take on fuel in the form of ligroin, ... «MoneyWeek, Ian 15»
Hit the road... the Benz way!
She stopped at a local pharmacy that sold ligroin, the petroleum solvent used to run the car, when running low on fuel. Bertha used her hairpin ... «The Hindu, Ian 15»
Oily Bits: The Combustion Process
Daimler referred to the Grandfather Clock engine as a Petroleum engine to hide the fact that it used the very dangerous Naptha (Ligroin by ... «CNET, Oct 13»
Bertha Benz - the mother of motoring
Surprisingly, petrol was less of an issue than you might imagine because it could be bought in the form of ligroin (a petroleum ether, also known ... «Telegraph.co.uk, Sep 13»
Bertha Benz Hits the Road, 125 Years Ago
When she ran low on fuel, she sought out a local pharmacy that sold ligroin, the petroleum solvent used to run Karl Benz's cars. She made an ... «History, Aug 13»
Bertha Benz, the woman who took the first real drive
... Herr Ockel, initially astonished to see how this new customer had arrived, was further surprised when she bought his entire stock of Ligroin, ... «Irish Independent, Aug 13»
Meet Bertha Benz, The Woman Who Took The First Real Drive
Her mom lived over 60 miles away, in Pforzheim, and Bertha had to plan her route around apothecary shops in villages where she could buy ligroin, which was ... «Jalopnik, Mar 13»
Answers to last week's quiz (#279)
On the way, she had to find Ligroin, a solvent available only at dispensing chemists' shops, to use as fuel. Thus, the still existing Stadt-Apotheke ... «Business Standard, Nov 12»
