Arsenic salt to take this product 0.4g, add water 23ml dissolved, add 5ml hydrochloric acid, according to inspection, should be consistent with the provisions of (0.0005%). Content determination To about 0.12g, chloride content, accurately weighed, add water 50ml to dissolve, ammonium chloride prices, coupled with dextrin solution 5ml, fluorescent yellow indicator solution 8 drops of calcium carbonate 0.10g, shake, ammonium chloride titration with silver nitrate solution (0.1mol / L) titration. Each 1ml of silver nitrate titration solution (0.1mol / L) is equivalent to 5.349mg of NH4Cl. Personal protection: respiratory protection: air concentrations exceeding the dust, Shandong chloride, must wear self-absorption filter respirators. Emergency rescue or evacuation, air respirator should be worn. Eye protection: Wear protective chemical safety glasses. Physical protection: wear protective overalls on infiltration. Hand protection: Wear rubber gloves. Other protection: work, take a shower. Pay attention to personal hygiene. Equipment to be closed, the workshop should be well ventilated. Ammonium chloride manufacturers, three-level chemical quality assurance (certification), ammonium chloride is provided by Jinan three ping Chemical Co. Jinan three ping Chemical Co., Ltd. (www.sanpinghuagong.com) Shandong Jinan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Three-ping Chemical leadership with the staff warmly welcome all inquiries negotiations to create three levels of chemical better future.