When making a silica gel-indicator, a small amount of color indicators of moisture are added to it, which are substances that change their color when the degree of hydration changes. Typically, divalent cobalt salts such as cobalt chloride are used as such a substance. In a dehydrated state, this salt has a dark blue color, when hydrated it changes color to light pink.
|Name||Weight from, kg||Price per kg, rub||Quantity in a bag, kg||Price per bag, rub|
|Silica gel indicator GOST 8984-75||20||1,246||20||24920,00|
|Grain color||Blue to light blue|
|Mass fraction of grains 1.0-7.0 mm in size,%, not less||96|
|Moisture capacity of silica-indicator,%, not less, at 20 ° С and relative humidity,%: