Iron ore futures100t. Iron ore futures are listed and traded on Dalian Commodity Futures Exchange, and there are the following trading rules:
1, minimum change unit
The minimum price change of iron ore futures is 0. 5 yuan/ton, the number of each fluctuation point = trading unit × minimum fluctuation price. Therefore, the profit and loss of each fluctuation point of iron ore futures = 100 tons/lot ×0. 5 yuan/ton = 50 yuan.
2. Trading time
(1) Every trading day at 9: 00-10: 10:30- 16:30,13: 30-1.
⑵ call auction time is 20: 55-2 1: 00 on each trading day, in which 20: 55-20: 59 is the time for instruction declaration and 20: 59-2 1: 00 is the time for instruction matching.
(3) It should be noted that call auction will be held within 5 minutes before the opening of the night session, and call auction will not be held in the day session.
(4) If night trading is not conducted (for example, night trading is not conducted the night before the legal holiday), call auction will be postponed to 5 minutes before the opening of daily trading on the next trading day.
3. Limit board
The range of contract price limit is set as: no more than 4% of the settlement price of the previous trading day.
4. Edge
The minimum deposit is 5% of the contract amount.
Any ore containing economically available iron is called iron ore. There are many kinds of iron ores, among which magnetite (Fe3O4), hematite (Fe2O3) and siderite (FeCO3) are mainly used for ironmaking. After the iron ore sample is dissolved with hydrochloric acid, the iron in it is transformed into Fe3+. Under the condition of strong acid, Fe3+ can be reduced to Fe2+ through SnCl2. After Fe3+ is reduced by Sn2+, methyl orange can also be reduced to hydrogenated methyl orange by Sn2+ and fade, so methyl orange can indicate the end point of Fe3+ reduction. Sn2+ can continue to reduce hydrogenated methyl orange to N, N- dimethyl p-phenylenediamine and sodium p-aminobenzene sulfonate. Iron ore is an international commodity and strategic material, which belongs to the economic lifeline.