Hach Ultra POLYMETRON 9210, Operator'S Manual, Page: 91 / 116

Page B5
SILKOSTAT 9210
HEALTH AND SAFETY INFORMATION
PRODUCT : SODIUM HEXAFLUOROSILICATE
The health and safety information on this product is as follows :
SODIUM HEXAFLUOROSILICATE
(sodium fluorosilicate , disodium hexafluorosilicate disodique)
Formula : Na
2
SiF
6
Hazard class : 6.1No. UN : 2674
CAS N° 16893-85-9
PHYSICAL PROPERTIES
White granular powder
Density (20 °C) approx. 2,7 g cm
-3
Slightly soluble in water (6g 1-1 to 20°C)
FIRE AND EXPLOSION HAZARD When heated to decomposition it may emit hydrogen
fluoride.
HEALTH HAZARD
Classification of risk – toxic.
Avoid contact with skin.
Avoid contact with eyes.
Keep locked up.
Keep out of reach of children.
Toxic by ingestion and skin contact
Toxic by inhalation
Irritating to skin and eyes, may cause damage if
exposure is prolonged.
Occupational exposure standard, long term
exposure limit (8h TWA) 2,5 mg m
-3
SAFETY PRECAUTIONS – FIRST AID If the casualty feels unwell, seek medical advice and
show label where possible.
EYES Rinse immediately and thoroughly with water for at
least 10 minutes. Obtain medical attention.
LUNGS Remove from exposure, rest and keep warm. In
severe cases, or if exposure has been great obtain
medical attention.
MOUTH Wash out mouth thoroughly with water and give
plenty of water to drink. Obtain medical attention.
SKIN Wash skin thoroughly with water and give plenty of
water to drink. Obtain medical attention.
CHEMICAL HAZARD AND STABILITY Contact with acids liberates toxic gas.