CE ÎNSEAMNĂ PHENOL ÎN ENGLEZĂ?
Fenol
29,1 (în acetonitril) λmax 270,75 nm Moment dipol 1,7 D Pericole de periculozitate GHS pictograme GHS fraze de pericol H301, H311, H314, H331, H341, H313, H331, H341, H373 Fraze de precauție GHS P261, P280, P301 + 310, P305 + 351 + 338, P310 Clasificare UE Toxic (T) Muta. Pisică. 3 Fraze R corozive (C) R23 / R24 / R25-R34 R48 / R20 / R21 / R22-R68 Fraze S (S1 / 2) -S24 / S25-S26-S28- S36 / S37 / S39-4545 NFPA 704 2 3 COR Punct de aprindere 79 ° C Compuși înrudiți Compuși înrudiți Tiofenol Fenoxid de sodiu Exceptând cazul în care se menționează altfel, se furnizează date pentru materialele în stare standard (la 25 ° C, 100 ° C, kPa) Y (verifică) (ceea ce este: Y / N?) Referințe pentru infobox Fenol, cunoscut și ca acid carbolic, este un compus organic aromatic cu formula moleculară C6H5OH. Este un solid cristalin alb care este volatil. Molecula constă dintr-o grupare fenil (-C6H5) legată la o grupare hidroxil (-OH). Este ușor acid, dar necesită o manipulare atentă datorită tendinței sale de a provoca arsuri.
Definiția phenol în dicționarul Engleză
Definiția fenolului din dicționar este numită și acidul carbolic. un derivat acizic otrăvitor, acid clorhidric, al benzenului, utilizat ca antiseptic și dezinfectant și în fabricarea rășinilor, nailonului, coloranților, explozivilor și produselor farmaceutice; hidroxibenzen. Formula: C6H5OH. O altă definiție a fenolului este oricare dintre o clasă de compuși organici slab acidi, ale căror molecule conțin una sau mai multe grupe hidroxil legate direct la un atom de carbon dintr-un inel aromatic.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «PHENOL»
Descoperă întrebuințarea
phenol în următoarea selecție bibliografică. Cărți în legătură cu
phenol și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Dystonia: Etiology, Clinical Features, and Treatment
In large specialty rehabilitation centers, the most common phenol nerve blocks
are performed for severe thigh adduction (i.e., the obturator nerve) or elbow
flexion (i.e., the musculocutaneous nerve). In some centers, pediatric patients
with ...
Mitchell F. Brin, Cynthia Comella, Joseph Jankovic,
2004
2
Unwanted Effects of Cosmetics and Drugs Used in Dermatology
Phenol (carbolic acid) 16.51 Phenol is a strong but also a toxic bactericide. It is
not used as an antiseptic at the present time, but in dilutions of 0.5-2% it is
sometimes prescribed as an antipruritic in the form of various topical medicines.
Anton C. de Groot, Johan Pieter Nater, J. Willem Weyland,
1994
3
Disinfection, Sterilization, and Preservation
They differ from the solubilized form in that the phenol fraction, rather than being
dissolved in a soap base, is emulsified into a permanent concentrated
suspension with the aid of gelatin, casein, or the carbohydrate extractable from
Irish Moss ...
Seymour Stanton Block,
2001
4
Essential A2 Chemistry for OCR
In phenol, this 8+ charge is spread over the whole delocalised system. This
makes this carbon less 8+ and therefore less susceptible to attack by
nucleophiles than is the C — O bond in alcohols. For these two reasons loss of
the — OH group ...
OH NaOH O–Na H 2 O Phenol Water Sodium Sodium pKa 9.95 pKa 15.7
phenoxide hydroxide (stronger acid) (weaker acid) Most phenols do not react
with weaker bases such as sodium bicarbonate; they do not dissolve in aqueous
sodium ...
William Brown, Christopher Foote, Brent Iverson,
2008
6
Methods in Microbiology
the hot phenol-water extraction may give rise to non-specific degradation of LPS
and may lead to a loss of O-chain material (up to 5%) and of esterlinked fatty
acids (up to 11% of the total amount). It has been assumed that such degradative
...
7
Handbook of Corrosion Data
Phenol Phenol, C6H5OI I, also known as carbolic acid and phenylic acid, is a
white poisonous crystalline solid that melts at 43 °C (1 10 °F) and boils at 182 °C
(360 °F). Phenol has a sharp burning taste, a distinctive odor, and it irritates
tissue.
Bruce D. Craig, David S. Anderson,
1994
8
Handbook of Drinking Water Quality
PHENOLS A phenol is defined as a colorless, crystalline substance contained in
tars of coal and wood or synthetically manufactured. known for its characteristic
odor. Phenols can be defined as a group of compounds in which one or more ...
9
RNA Methodologies: A Laboratory Guide for Isolation and ...
Phenol:Chloroform:Isoamyl Alcohol Phenol, chloroform, and combinations
thereof are caustic, carcinogenic reagents that must be handled with extreme
care. Be sure to observe all safety precautions indicated by the manufacturer.
Phenol and ...
Robert E. Farrell, Jr.,
2010
10
Direct Oxidation of Benzene to
Phenol: Investigation of the ...
At present, the most widely used industrial process for the synthesis of phenol is
the multi- step cumene process.5 This process is shown in figure 1 .2, and
includes the alkylation (using propylene) of benzene to cumene (eqn. 1.1),
followed by ...
Jerome Bolabola Taboada,
2006
ȘTIRI NOI CARE INCLUD TERMENUL «PHENOL»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
phenol în contextul următoarelor știri.
20 Health Benefits of Thyme Oil
... a different chemotype. Thymus vulgaris phenol – These are thyme plants that grow in high altitudes and contain up to 90 percent of phenol compounds. «ProHealth, Iul 15»
Cookies on the ICIS website
ICIS has enhanced its Asia phenol price report by adding a CFR (cost & freight) northeast (NE) Asia price assessment, to better reflect current trading patterns ... «ICIS, Iul 15»
Axiall Corp Now Covered by Analysts at Nomura (AXLL)
... fence and rail products, and Aromatics segment also contains two commodity chemical product groups: cumene; and phenol and acetone. «Dakota Financial News, Iul 15»
Common and specific downstream signaling targets controlled by …
... 5.0 mM HEPES (pH 7.6)) containing 1× phenol red (Sigma-Aldrich). For knockdown experiments, tlr2 ATG-morpholino (tlr2 mo, Additional file ... «BMC Blogs Network, Iul 15»
Long-term phosphodiesterase 5 inhibitor administration reduces …
Lowry O, Rosebrough N, Farr A, Randall R. Protein measurement with the Folin-phenol reagent. J Biol Chem 1954; 193: 265–275. Giani JF1 ... «Nature.com, Iul 15»
Look to the Yeast
In chemistry, a phenol refers to a chemical that has an “-OH” attached. Two phenols in particular appear responsible for the flavor profiles ... «Artvoice, Iul 15»
Agents of change: wet-end chemicals
The low formaldehyde and phenol content, and the minimal TDS contribution make SELLATAN HAT liq ideal for TFL White Line technology. «Leather International, Iul 15»
Tobacco Smokers Must Kick the Offending Habit
He named some of the chemicals as acetone, arsenic, butane, cadmium, carbon monoxide, methanol, nicotine, phenol, toluene and hydrogen ... «AllAfrica.com, Iul 15»
Off-Flavor: Phenolic
Brettanomyces-driven styles are often described as horsey or barnyard-like thanks to 4-ethyl phenol. While cloves, pepper, and even sweaty ... «Craft Beer & Brewing, Iul 15»
Amsterdam-Rotterdam-Antwerp acetone prices extend losses …
The turnaround at the German acetone/phenol plant in Leuna, which belongs to Domo Caproleuna, is set to start this week and last until first ... «Platts, Iul 15»