The earliest use of purple pigments by humans dates back to the Neolithic Age. Around 20,000 years ago, in and around Pechmel, France, people left the Outlines of their own hands with manganese minerals.

As von Hofmann's assistant, Perkin wanted to impress his teacher, and he wanted to see if he could synthesize quinine. He failed.

Phthalocyanine dyes are large cyclic aromatic compounds containing benzene and nitrogen atoms that have a dark color, usually between blue and green.

To create the first true purple pigment cobalt violet. Cobalt violet was followed by manganese violet, and in the 20th century, quinacridone pigments opened up a whole new spectrum of purple.

In terms of coal production areas, the weather has cleared up in Yulin, Ordos and other places in Shaanxi, and roads in mining areas have gradually returned to normal. However, the impact of snowfall on the pit market has not completely dissipated.

The disclosure announcement of China Nuclear Titanium Dioxide, the leading manufacturer of titanium dioxide, announced that the company will comprehensively increase the sales prices of all models of titanium dioxide starting from January 19, 2024. Among them, the sales price for domestic customers is increased by 500 yuan/ton, and the sales price for international customers is increased by US$100/ton. Just three days ago, companies including Longbai Group and Huiyun Titanium also announced price increases.

The demand for polyester chain stocking during the Spring Festival has started. With the holiday approaching and fundamental support, the price support is strong. After the holiday, the industrial chain is affected by strong supply and there is a certain expectation of accumulation of inventory. However, it is expected that inventory will not exert much pressure on prices, and the market will have a strong willingness to support prices. The market situation with "strong expectations" after the Chinese Lunar New Year in 2023 will Continued in 2024.

The main crude oil futures contract fluctuated during the week this week. As of Friday's close, the SC crude oil main contract closed at 566.3 yuan/barrel, down 0.65% from last Friday's close.

As of the close of Friday on the futures market, the methanol contract has slightly reduced its position today, with 5,161 positions in the weighted methanol contract and 4,966 positions in the 05 main contract. The weighted contract, the intraday trend, fluctuated downward throughout the day, closing down 0.8% overall.

The RU2405 month contract opened this week at 13,800 points, with a maximum of 13,950 points and a minimum of 13,635 points. It closed at 13,875 points, an increase of 105 points, with a trading volume of 1,025,916 hands and an open interest of 160,139 hands.

The demand for coke continues to weaken, inventories in the lower reaches of the industrial chain continue to rise, and steel mills are strongly willing to lower coke prices. This week, the second round of coke shipments has landed. The closing price of quasi-first-class wet quenching coke in Rizhao Port is 2,340 yuan/ton, and the ex-warehouse price is 2,300 yuan/ton. tons, equivalent to a warehouse receipt cost of about 2,510 yuan/ton. After the second round of coke price cuts, the main coke contract is still at a slight discount.

From a fundamental point of view, the start-up in mainland China is basically stable. This week, the average start-up rate of Zhuochuang methanol is 71.35%, and the start-up rate in northwest China is 82.72%, a slight increase from last week. Jiutai Tuoketuo's 2 million tons/year methanol unit will be installed in January 2024. It was shut down from January 5th to 11th. Shaanxi Weihua's 400,000-ton unit started maintenance for seven days on the 10th. Southwest gas plants restarted on the 25th, Jiuyuan and Sichuanwei on the 25th and 9th respectively.

Fundamental overview: According to the Natural Rubber Network, the main production areas at home and abroad are approaching the off-season of supply, coupled with the replenishment of upstream factories, raw material prices are firm