Formula of washing powder I want to make my own washing powder. What raw materials are needed and how to make them?

The formula is very simple, but I sincerely advise you that the technical threshold is very low and anyone can do it, but there may not be a market. Most people who make their own washing powder haven't done anything for a while.

From the perspective of popular science, washing powder is a mixture of sodium alkylbenzene sulfonate, sodium carbonate, sodium tripolyphosphate, sodium sulfate, carboxymethyl cellulose and fluorescent whitening agent. Among them, sodium alkylbenzene sulfonate can be prepared by purchasing alkylbenzene sulfonic acid and adding sodium hydroxide, that is, caustic soda for neutralization. Everything else is ready-made

As for the specific proportion and dosage, it's really hard to say. There are various proportions on the Internet, but there is no standard dosage of regular manufacturers. The reason is very simple. According to national standards, the cost price may reach the sales price of these bulk homemade products. Bottom line: Cut corners and fool people. So, there is no market at all.