1. Introduction
Corrosion and scale inhibitor SM-302 is a compound of organic phosphonic acid, polycarboxylic acid, stainless steel, carbon steel corrosion inhibitor and copper corrosion inhibitor. It is effective against calcium carbonate in water. , Calcium sulfate, calcium phosphate, etc. have a good chelating and dispersing effect and have a good corrosion inhibition effect on carbon steel and copper. Corrosion and scale inhibitor SM-302 is mainly used for corrosion and scale inhibition in circulating cooling water systems, such as circulating cooling water systems in power plants, chemical plants, petrochemicals, steel, etc., corrosion and scale inhibitor SM-302 has good corrosion and scale inhibition effects Strong.
2. Quality index (see Table 1)
Table 1 Main Quality index of scale and corrosion inhibitor SM-302 　　　

Meet: DL/T806-2013

Note: According to customer requirements, it can also be produced in accordance with power industry standards or chemical industry standards.
3. Uses
The technical staff of our factory will provide detailed dosing plan and monitoring Index according to the specific circulating water system process, water quality and material conditions. The general dosage is 10-20mg/L.
4. Safety, protection, packaging and storage
SM-302 scale and corrosion inhibitor is weak acid, low toxicity, no irritating odor. If contact with skin, rinse with water in time. It is packed in 25 kg plastic drums, or according to user requirements. Avoid exposure to the sun during storage. Store in a ventilated and dry warehouse at a temperature higher than 0°C. The storage period is ten months.