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4 C 3 H 4 N 2 + C(O)Cl 2 → (C 3 H 3 N 2) 2 CO + 2 [C 3 H 3 N 2 H 2]Cl. In this conversion, the imidazole serves both as the nucleophile and the base. An alternative precursor 1-(trimethylsilyl)imidazole requires more preparative effort with the advantage that the coproduct trimethylsilyl chloride is volatile. CDI hydrolyzes readily to give ...
A Brazilian Swap is a type of swap where the floating rate is calculated using an average rate and has only one payment, which occurs at maturity. [1]The average rate used for the Floating Leg is the Average One-Day Interbank Deposit (aka CDI rate, or overnight DI rate) which is an annual rate and is calculated daily by the Central of Custody and Financial Settlement of Securities (CETIP).
Cadmium iodide is an inorganic compound with the formula CdI 2. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate. [2] It has few applications. It is notable for its crystal structure, which is typical for compounds of the form MX 2 with strong polarization effects.
Flask, 1925-1930. Sterling silver and cork, 9 5/8 x 4 1/2 x 1 3/16in. (24.4 x 11.4 x 3cm). Brooklyn Museum, Modernism Benefit Fund. The Napier Company is an American jewelry manufacturing company, and was one of the first modern corporations in the United States. The company is also known historically as a cutting-edge silver object ...
Ultimately, these qualities of the detector result in missing data within the diffraction patterns. In situ CDI is a new method of this imaging technology that could increase resistance to incomplete measurements. In situ CDI images a static region and a dynamic region that changes over time as a result of external stimuli (Hung Lo 2018).
Pair of Byzantine earrings; 7th century; gold, pearls, glass and emeralds; 10.2 by 4.5 centimetres (4.0 in × 1.8 in); Cleveland Museum of Art Front of a temple pendant with two birds flanking a tree of life ; 11th–12th century; cloisonné enamel and gold; overall: 5.4 by 4.8 by 1.5 centimetres (2.13 in × 1.89 in × 0.59 in); made in Kyiv ...
Diamond-weighing kit, with weights labelled in grams and carats. The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls.
For example, a gold alloy of 127 ⁄ 128 fineness (that is, 99.2% purity) could have been described as being 23-karat, 3-grain, 1-quart gold. The carat fractional system is increasingly being complemented or superseded by the millesimal system, described above for bullion, though jewelry generally tends to still use the carat system.