... .0 mPa · s, freezing point-18 ~ 21.5 °C, PH 3.5 ~ 5.0, it is soluble in water, low ... carbon glycol and glycol. Best use PH value 4 to 8, PH >8 stability when dropped, stored at room ... smell, was found no sediment PH 3.0-5.0 Activity content % 1.5 Proportion (d420) 1.15 Heavy metal (in Pb ... not be more than 50 °C, the product in the PH 1 ~ 8 range are effective. The highest recommended dose is ...