1. bitcoin (bitcoin: bitcoin) was originally a kind of network
virtual currency, similar to Tencent's q-coin, but it has been able to buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals. In 2013, the U.S. government recognized the legal status of bitcoin, making the price of bitcoin soar. In China, on November 19, 2013, a bitcoin was equivalent to 6989 yuan. On January 7, 2014, Taobao announced that it would ban the sale of Internet virtual currencies such as bitcoin and lightcoin from January 14
hope to adopt
2. 1. BTC: chemical vocabulary
BTC is the abbreviation of (Trichloromethyl) carbonate. It is the abbreviation of a chemical substance, mainly composed of carbon, chlorine and oxygen. The chemical formula is c3cl6o3, which can be used as the substitute proct of highly toxic phosgene and diphosgene in the synthesis
BTC: enterprise abbreviation
BTC refers to BTC Yingqun enterprise from Taiwan, China, which is a large-scale high-tech enterprise developing and procing keyboard, mouse and recorder. BTC is famous for procing high-quality computer peripherals. BTC is the OEM keyboard and add-on card proced by famous brand EMPREX, ranking first in Taiwan, especially the third in the world
BTC: the concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was formally born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted
digital currency in the form of P2P. Point to point transmission means a decentralized payment system BTC: engineering material
BTC (buttress thread coupling), full name of partial trapezoidal thread coupling, is an API standard thread connection type, which is commonly used in the connection of petrochemical pipes or tools, such as floating collar, guide shoe and pipe shoe used in cementing operation
5, BTC: e-commerce mode
BTC (business to customer) e-commerce is one of the categories of e-commerce by trading partners, that is, e-commerce of commercial institutions to consumers. This form of e-commerce is generally based on the network retail instry, mainly with the help of the Internet to carry out online sales activities. BTC is also known as B2C, B2C mode is the earliest e-commerce mode in China
3. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008. It is a kind of P2P digital currency. Bitcoin is not issued by specific monetary institutions. It is generated by a large number of calculations based on specific algorithms. At present, bitcoin can be bought and sold on mainstream platforms such as coin security, fire coin, bitewang (free of charge) and so on.
4. What is bitcoin to eat?
5. The strongest Daren this game you have to play the level enough, 20 yuan words can be withdrawn once a day.
6. 1,3,5-benzenetricarboxylic acid
7. Triphosgene, also known as solid phosgene, chemical name for trichloromethyl carbonate, bis (Trichloromethyl) carbonate, soluble in ethanol, benzene and ether, water and alkali decomposition. It can be used for pharmaceutical synthesis, pesticides, and also an important raw material for the synthesis of polyurethane foam plastics.
Chinese Name: phosgene, solid phosgene, bis (three chloromethyl) carbonate
English Name: Bis (Trichloromethyl) Carbonate (BTC), three. Triphosgene
molecular formula: c3cl6o3
structural formula: CO (occl3) 2
molecular weight: 296.75
CAS No.: 32315-10-9
melting point: 78-81 ℃
boiling point: 202-206 ℃
solid density: 1.78g/cm3
melting density: 1.629g/cm3
8. 91 (1) & aring. Open architecture creates three-dimensional channels, as shown in Figure 2, which are filled with water and pyridine customer molecules. The channel creates a double-layer p-dimethylphenyl pillar on one side of the wall. The rings of the p-dimethylphenyl group are regularly located in almost parallel and vertical directions on one side of the channel (with dihedral angle of 1.40) ° ， eighty-seven point nine ° ， eighty-eight point four ° ， Between them). 52 (1) & aring The effective channel width corrected to van der Waals surface is 11.12 (1) & aring;). The number of blank volume channels is estimated to be 61, accounting for 1 of the total volume. Thermogravimetric analysis shows that all customers' molecules can be removed in 133 ° C and indicate that the solid is rising steadily to 275 ℃. When a single crystal is allowed to stand in air for 2 hours a day, allpyridine and some water customer molecules are removed to yield [nickel (c26h52n10)] 3 [BTC] 430h2o (1 & # 39;). X-ray structure 1-39 Supporting data) showed that cell volume and thickness were
less than those of 1 (see Table 1).
