Are detergents dangerous?

Some people think that the detergent has strong sterilization, disinfection and detergency. The more you put it on, the cleaner you wash it, and the longer the soaking time, the better the effect. In fact, this is a misunderstanding. Common detergents currently on the market can only mechanically remove most of the pesticide residues on the surface of fruits and vegetables, but do not have the functions of disinfection and sterilization. On the contrary, if the soaking time is too long, the bacteria will enter the human body with the washing residue. The tableware washed with detergent must be rinsed with tap water for more than two times. The concentration of detergent should be 0.2-0.5%. The soaking time depends on the different conditions of fruit and vegetable skins. If the skin of strawberries is not smooth, soak for more than ten seconds, and rinse repeatedly with running water. In addition, the mixed use of various detergents and disinfectants is harmful to human health. Chlorine-containing cleaning agents (bleaching powder, detoxification liquid) are mixed with acid-containing disinfecting cleaning agents (toilet cleaning agent), or when bleaching powder is combined with ammonia-containing cleaning agents, toxic chlorine gas will be generated, which will irritate the eyes, nose, and throat, causing irritation. Inflammation, leading to poisoning, can cause fatal harm to the human body. Toxicity Hazard The commonly used surfactants in dishwashing detergents are sodium linear alkyl benzene sulfonate (abbreviated as LAS) and sodium linear fatty alcohol polyoxyethylene ether sulfate (abbreviated as AES). According to the study on the acute oral toxicity of these two surfactants, the LD50 of LAS was confirmed to be 0.5~2.0 g/kg; the LD50 of AES was 1.7~5.0 g/kg. This toxicity range is comparable to that of edible salt and baking soda, so it should be a non-toxic substance. The concentration of surfactants in detergents is generally only 15~20%, and it is about 0.1~0.15% after being diluted by flushing water. As estimated based on the amount of surfactant remaining in the washing liquid after 1 rinse, the amount of surfactant stained on each plate was only 0.0009 mg. The daily intake is 0.018 mg per person, based on 20 dishes per day; if rinsed twice or rinsed with tap water, the intake is even more insignificant. According to relevant research, the daily intake of surfactants per person is 0.3-3 mg is the safe line. Then, after washing dishes with dishwashing detergent, the residual amount on the dishes is much lower than this line, so it can be regarded as absolutely safe, and consumers can use it with confidence. At the same time, China's mandatory national standard for dishwashing detergents (GB9985-2000) requires arsenic content of 0.05 mg/kg, heavy metals (calculated as lead) 1 mg/kg, methanol 1 mg/kg, and fluorescent whitening agents shall not be detected, etc. , which establishes maximum limits for other potentially hazardous ingredients in dishwashing detergents. If the national standard is strictly implemented, the dishwashing detergent should be normal and harmless. According to the relevant national regulations, formaldehyde cannot be added to detergents. However, some small manufacturers have to use formaldehyde as a preservative to ensure that the detergents do not deteriorate due to the raw materials, production process, sanitary conditions, etc. failing to meet the requirements. Therefore, there are two main reasons for formaldehyde exceeding the standard: one is that the quality control of raw materials is not enough, and the other is that some illegal enterprises add formaldehyde in violation of regulations in order to pursue the washing effect. In addition to formaldehyde, methanol is also added to facilitate the dissolution of aqueous and organic phase materials.
In the past few decades, personal care products wholesale production has increased because of the use of custom laundry detergent.
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