Search results
Results From The WOW.Com Content Network
Similarly to its use in baking, sodium bicarbonate is used together with a mild acid such as tartaric acid as the excipient in effervescent tablets: when such a tablet is dropped in a glass of water, the carbonate leaves the reaction medium as carbon dioxide gas (HCO 3 − + H + → H 2 O + CO 2 ↑ or, more precisely, HCO 3 − + H 3 O + → 2 ...
2 Al + 2 NaOH + 2 H 2 O → 2 NaAlO 2 + 3 H 2 Sodium aluminate is an inorganic chemical that is used as an effective source of aluminium hydroxide for many industrial and technical applications. Pure sodium aluminate (anhydrous) is a white crystalline solid having a formula variously given as NaAlO 2 , Na 3 AlO 3 , Na[Al(OH) 4 ] , Na 2 O·Al 2 ...
A key iodine(III) enolate intermediate forms, which then undergoes either nucleophilic substitution (α-functionalization), elimination (dehydrogenation), or rearrangement. Common hypervalent iodine reagents used to effect these transformations include iodosylbenzene (PhIO), [1] Koser's reagent (PhI(OTs)OH), [1] and (dichloroiodo)benzene (PhICl ...
At 650 hectares, Noi Bai is the second-largest airport in Vietnam, behind the 800 hectare Tan Son Nhat International Airport. Terminal 1, completed in 2001, used to be the sole terminal handling both domestic and international flights. However, with the opening of the second terminal, it is now reassigned to handle domestic flights only.
2 Na + 2 NH 3 → 2 NaNH 2 + H 2. NaNH 2 is a salt-like material and as such, crystallizes as an infinite polymer. [5] The geometry about sodium is tetrahedral. [6] In ammonia, NaNH 2 forms conductive solutions, consistent with the presence of [Na(NH 3) 6] + and NH − 2 ions.
Hanoi is served by Noi Bai International Airport, located in Soc Son District, approximately 15 km (9 mi) north of Hanoi. The new international terminal (T2), designed and built by Japanese contractors, opened in January 2015 and is a big facelift for the airport.
After the historical floods in early November 2008, people in Hanoi have, since then, seen Tô Lịch river's water "clean" as it was in previous years. [1] Before said floods, Tô Lịch river was diluted down the mud and waste by rainwater, rising yards, rolling flow and fishes. That flood had the Tô Lịch river's water cleaned within a few ...
α,β-Unsaturated carbonyl compounds featuring a carbonyl conjugated to an alkene that is terminal, or vinylic, contain the acryloyl group (H 2 C=CH−C(=O)−); it is the acyl group derived from acrylic acid. The preferred IUPAC name for the group is prop-2-enoyl, and it is also known as acrylyl or simply (and incorrectly) as acryl. Compounds ...