The safety categories and hazard symbols for ammonium metatungstate hydrate can be summarized as follows:
Safety category information for ammonium metatungstate hydrate:
CAS number of ammonium metatungstate hydrate: 12333-11-8
Molecular formula of ammonium metatungstate hydrate: H2O.6H3N.H8O40W12.
Molecular weight of ammonium metatungstate hydrate: 2974.32000 (or 2956.3, depending on the specific molecular formula and calculation)
Hazard symbols and related information for Ammonium metatungstate hydrate:
Hazard symbol for ammonium metatungstate hydrate: Xn – Harmful substances
Risk term for ammonium metatungstate hydrate (R-phrase):
R22 – Harmful if swallowed
R38 – Irritating to eyes
There may be other risk terms related to skin contact, hazards in the aquatic environment, etc., which are not explicitly listed in the provided reference article
Safety terms for ammonium metatungstate hydrate (S-phrase)
S26 – After inadvertent contact with eyes, flush immediately with plenty of water and seek medical advice
S36 – Wear suitable protective clothing
S39 – Wear goggles or a mask
S60 – The substance and its container must be disposed of as hazardous waste.
There may be other safety terms related to safe handling, storage and disposal
GHS classification of ammonium metatungstate hydrate:
Health Hazard:
Acute Toxicity (oral): AcuteTox.4
Acute toxicity (percutaneous): AcuteTox.4
Severe Damage/Irritation of Eyes: EyeDam.1
Environmental Hazards:
Acute aquatic toxicity:AquaticAcute1
GHS labeling elements for ammonium metatungstate hydrate:
GHS05: Corrosive
GHS07: exclamation point (indicates hazard)
Ammonium metatungstate hydrate is classified as a hazardous substance with risks of being harmful if swallowed and irritating to the eyes. Use, storage and disposal require strict adherence to relevant safety regulations, wearing of appropriate protective equipment and proper disposal of waste.
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