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SILICA GEL, granulated, with saturation indicator, 5 g, bag

https://unicat.msf.org/cat/product/18851
STD SLASSILI1C5

Valid Article

Former Code(s): -X
CT25
Thermosensitive codes are defined for storage and transportation temperature requirements of the products.
OC subscriptions: included in supply or field order tools (e.g. UniField)
SC subscriptions: included in supply or field tools
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)

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SILICA GEL, granulated 5 g

CAUTION

Use of silica gel containing the indicator cobalt chloride is forbidden in MSF due to the carcinogenicity. Instead, use silica gel with iron sulfate as humidity indicator (orange indicator).

Definition

Humidity absorbent product with saturation indicator.

Used to keep blood samples on filter paper away from humidity.

Synonym

Actigel, Silicagel, Dessicagel, Dessicant

Specifications

Technical specifications

  • Silica impregnated with ferrous salts: SiO2 x H2O (orange)
  • Size of the granules: ± 2 to 6 mm
  • Absorption capacity of water at 25º C: min 23%
  • Sachet:
    • Mentions the warning "Do not eat"
    • Made of vapour permeable material to allow humidity uptake
    • Transparent to allow easy colour check of the humidity indicator

Packaging & Labelling

5 g sachet

Instructions for use

Can also be used to protect slides or a microscope from humidity (place the parts to be protected in a watertight box with a large quantity of silica gel).

The saturation indicator turns from orange to white/beige as it absorbs humidity. Regularly check the colour of the granules. If they become white, take new ones (single use).

Please consult the “Updated laboratory procedures, 2022” available online via the Laboratory working Group sharepoint page: Laboratory Procedures and Resources.

https://msfintl.sharepoint.com/sites/msfintlcommunities/LabWG/SitePages/Laboratory-Manual-page.aspx

For offline access, contact your laboratory advisor.

Storage

  • Store below 25°C
  • Keep in its tightly closed packaging.
  • Can be used as long as the orange does not turn to white.

Waste management

If you come across silica gel containing the indicator cobalt chloride in the field, please contact your watsan referent for advice on proper disposal.

This is a substance with potenital carcinogenic properties (H350) and may damage fertility or the unborn child (H360).

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