H3btc in Chemistry
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 abbreviationBTC 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 materialBTC (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
bitcoin is generated by a large number of calculations based on a specific algorithm. Its essence is the special solution generated by a bunch of complex algorithms, and the process of digging bitcoin is to continuously seek the special solution of the equations through a huge amount of calculation. The equations are designed to have only 21 million specific solutions, so the upper limit of bitcoin is only 21 million
so if you want to dig bitcoin, you can use the computer to dig it. You can download the special bitcoin computing tool to do the operation to dig bitcoin
of course, the more professional the equipment is, the greater the probability of being able to dig. Therefore, we will carefully select the right mining machine and pool before digging bitcoin. For example, the BTC guild mine in foreign countries is very famous. As for the mining machine, it is a computer used to earn bitcoin, but the computer is equipped with professional mining chips. After all, bitcoin is a hot card. The price of a miner ranges from two or three hundred yuan to 200000 yuan.
the real price start is in October 2010. Before that, you can buy 10W pieces for 1W yuan. But this is because no one bought it, resulting in extremely low prices. If someone wants to buy 10W, the price will be higher than 1W.
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RMB: &
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US dollar: $
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Euro: &
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Brazilian real: R $
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Bulgarian Lev symbol: лв
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British Pound: £
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Singapore Dollar: S $
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Japanese Yen: J ¥
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Argentine Peso symbol: ARS $
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Vietnamese Dong symbol: ₫
¤ International currency symbol, used when there is no suitable currency symbol< br />
¤( Li Yuan (the international currency of the great Li Dynasty)
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&; Thai baht symbol
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BS Venezuela Bolivar and boliviano symbol
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br Belarusian ruble, Belarusian currency symbol
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& ; Ghana CEDI, the currency symbol of Ghana; The symbol of U.S. dollar and some other monetary auxiliary units is
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& ᦇ 8353; Koran symbol (used in Costa Rica and El Salvador)
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& #8363; Vietnamese Dong symbol # 8364; The symbol of euro is used in euro area countries, some small non European countries, Montenegro and Kosovo
ƒ Aruba florin, the currency symbol of Aruba. Formerly used as a symbol for the Dutch shield - see Rowling
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ft Hungarian Forint
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rs; Guarani, Paraguay, the currency symbol of Paraguay; The currency symbols of Kip and Kr in Laos can represent DKK, NOK, SEK and Icelandic Krone; It can be used as a reference for other countries; Lira (possibly confused with pound)
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LM Maltese lira, currency symbol of the Republic of Malta; Text (meaning one thousandth of a yuan or one tenth of a cent)
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&; Nigeria naira, the currency symbol of Nigeria; Philippines pesos, Philippines's currency symbol
P Botswana PRA, Botswana's currency symbol
Q Guatemala char, Guatemala's monetary symbol
R Rand South Africa, South Africa's currency symbol
Sk Slovakia kronor, Slovakia's currency symbol
Rp Indonesian shield. Indonesia's currency symbol
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&2546 2547; Rupee symbol (used in Bangladesh)
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R $real, Brazil's currency symbol
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s /, Peru's new SOL $Dollar Symbol
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"Kazakhstan tenge, Kazakhstan's currency symbol
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&; Tugrik, the currency symbol of Mongolia; The currency symbol of Korean won / Korean won is
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&; Currency symbol of RMB
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NT currency symbol of NT currency
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currency symbol of yen
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Z & #; Zloty, Poland's currency symbol
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& #8372; Hryvnia, the currency symbol of Ukraine; Israel's new Shek symbol
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& #6107; The currency symbols of Cambodia are as follows:
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& ᦇ 65020; Iranian Riyal, Iranian currency symbol
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руб Russian Ruble; Euro currency symbol
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$dollar currency symbol
extended data
about currency symbol
value symbol is also called "currency symbol". It is a kind of currency symbol that can replace metal currency to play the function of circulation means. Notes and coins of insufficient value are symbols of value. Because money, as a means of circulation, is only a medium of transaction, which is fleeting. To get it is to give it up. Therefore, traders don't care whether the medium itself has value or not, as long as it can replace value and be accepted by others. Therefore, the paper money with unlimited solvency and coins with insufficient value endowed by law can be used as currency instead of metal currency. In the history of currency, the earliest value symbol is the devalued gold coin. At first, gold coin was the original currency, that is, its nominal value was completely consistent with its actual value
source: Network: value symbol
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