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Blue Silica Gel

Blue Silica Gel

Blue Silica Gel

中文名:蓝色硅胶

Blue silica gel can be divided into blue indicating silica gel, color-changing silica gel and blue silica gel. Its appearance is blue or light blue glass-like ball or lump.

Size: 1-3mm, 2-4mm, 2-5mm, 4-8mm.

Technical specifications

Item

Blue gel

indicator

Discoloring silica gel

Blue

silica gel

Typical

values

Adsorption capacity %

RH=20%

≥8.0

≥8

RH=35%

≥13.0

≥13

RH=50%

≥20.0

≥20.0

≥18.0

≥22

RH=90%

≥28.0

≥32

Rattler loss %

≤10.0

≤10.0

≤10.0

≤1

Qualified size ratio %

≥96

≥90

≥90

≥95

Loss on heating %

≤5.0

≤5.0

≤5.0

≤2

Color

RH=20%

Blue or light blue

RH=35%

purple or purplish red

RH=90%

light red

Light red

light purple or light red

Packing and size can be adjusted according to customer’s different requirements.

Packaging

25kg/bag, 500kg/bag

Cobalt-free Blue Silica Gel

中文名:无钴蓝色硅胶

Size: 1-3mm, 2-4mm, 2-5mm, 4-8mm.

Technical specifications

Item

Unit

Index

Adsorption Capacity

RH=20%

%

≥9.9

RH=35%

%

≥20.2

RH=50%

%

≥25

RH=90%

≥38.5

PH value

2.02

Specific resistance

?.cm 

≥633

Ratio of size Qualified

%

≥97

Ratio of spherical

%

≥85

Bulk density

g/l

776

Loss on heating

%

≤2

Packaging

25kg/bag, 500kg/bag


Application

Blue silica gel mainly used in various industries, through itself color changes after moisture absorption to indicate the level of desiccant moisture absorption and the relative humidity of the environment

Storage

Temperature 5 to 25 degrees, humidity≤70%, can't light or radiation, airtight save, do not contact with air directly.

Blue silica gel can be regenerated, it will be returned to the original color after heating-dehydration

Related information

Allochroic silica gel is divided into 3 types: blue silica gel, cobalt-free blue silica gel, orange silica gel.

Blue silica gel (blue to red) contains cobalt chloride, cobalt chloride color from blue to pink after absorbing water.

Cobalt-free blue silica gel (yellow to red) contains congo red, congo red itself can be used as an acid-base indicator, colour change interval PH3.5 ~ 5.2, alkali state to red, acid state to violet.

Orange silica gel (yellow to green) contains methyl violet, methyl violet color from yellow to green between PH0.13-0.5.