化学原料板块9月19日涨0.49%，中核钛白领涨，主力资金净流出2135.26万元

Group 1 - The chemical raw materials sector increased by 0.49% on September 19, with Zhongke Titanium White leading the gains [1] - The Shanghai Composite Index closed at 3820.09, down 0.3%, while the Shenzhen Component Index closed at 13070.86, down 0.04% [1] - Zhongke Titanium White's stock price rose by 7.49% to 5.31, with a trading volume of 2.3951 million shares and a transaction value of 1.254 billion yuan [1] Group 2 - The main funds in the chemical raw materials sector experienced a net outflow of 21.35 million yuan, while retail investors saw a net inflow of 91.61 million yuan [2] - The stock with the highest net inflow from main funds was Zhongke Titanium White, with 164 million yuan, while it had a net outflow of 63.72 million yuan from speculative funds [3] - The overall trading activity in the sector showed a mixed trend, with some stocks like Longbai Group and Tianyuan Co. also experiencing significant trading volumes and price changes [3]