Humidity Indicator Cards
   
Humidity indicator cards Humidity Indicator Card can easily measure the relative humidity inside the sealed package to allow a quick and low cost inspection of whether the humidity level is unsafe. The blue indicator dot turns blue to pink means humidity in the package has or had been the humidity of that value.

Humidity Indicator Cards give a visual feedback of the RH percentage in the environment thanks to their color change.

Specifications:
One spot:       8%
Three spots:   5%, 10%, 15% / 30%, 40%, 50%
Four spots:    10%, 20%, 30%, 40%
Six spots:      10%, 20%, 30%, 40%, 50%, 60%

Activated clay (Activated mineral)
Active clay
Activated clay is made from Montmorillonite clay mixed with Calcium Chloride via several physical and chemical processes including reaction, granule-making, sifting and drying.

Chemical Composition:
Bentonite                 86.0%;
Calcium chloride       10.0%
Size: 0.5-2.0 mm, 1.0-4.0 mm, 2.0-4.0 mm spheres
Adsorption capacity (at 25oC):
RH=20%,     18.2%
RH=40%,     27.1%
RH=80%,     51.0%
Moisture content: <=2% (Drying at 170oC)
Technical Data Sheet

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  Montmorillonite (Bentonite)

Montmorillonite (Bentonite) Montmorillonite refers to a family of non-metallic clays primarily composed of hydrated sodium calcium aluminum silicate.

Size: 0.5-2.0 mm, 1.0-4.0 mm, 2.0-4.0 mm irregular
Adsorption capacity (at 25oC):
RH=20%,     12.1%
RH=40%,     19.0%
RH=80%,     25.3%
Moisture content: <=2% (Drying at 170oC)
Technical Data Sheet

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  Calcium Chloride

Calcium chloride Calcium chloride (CaCl2) ----------------------- 94%
Magnesium and Alkali Metals Chloride -------- 2.4
Infusibility in Water ----------------------------- 0.2
Alkalinity (According to Ca(OH)2) ------------- 0.2
Sulfate (According to CaSO4) ------------------ 0.1
Ph value------------------------------------------ 9
Arsenic --------------- --------------------------- <=0.0003%
Heavy Mental as Lead --------------------------- <=0.001%
Technical Data Sheet

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  Activated Alumina

Activated alumina Appearance -------------------------------- White spherical
Al2O3 --------------------------------------- >=92%
Na2O---------------------------------------- <=0.50%
Fe2O3 -------------------------------------- <=0.04%
SiO2 ---------------------------------------- <=0.10%
Bulk density-------------------------------- >=0.70 g/ml
Surface area ------------------------------ 260-300sqm/g
Pore volume ------------------------------- 0.38-0.42ml/g
Static adsorption (RH=60%)-------------- 16-18
Crushing strength ------------------------- 90N/P
Abrasion----------------------------------- <=0.40%
Technical Data Sheet

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  Super Absorbent Polymer (SAP)

Potassium SAP, N=2.7%, P=1.9%, K=21.6% Sodium SAP Sodium SAP






Appearance -------------------------------------- White granules
Main Component --------------------------------- Sodium or Potassium Polyethylene
Water sopping rapidity -------------------------- >=600ml/g
Water-keeping ratio ----------------------------- >=400ml/g
Moisture content --------------------------------- <=5%
pH value (1% water detracted liquid) ---------- 7.0
Product stability (condition of irrigation) ------- 5 years
Storage period ----------------------------------- 3 years
Technical Data Sheet (Sodium SAP)           Technical Data Sheet (Potassium SAP)

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Humidity Indicators
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