flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 31
Ammonium Sulfate
crystal
(NH4)2SO4
F.W. 132.15
Reagent A0062 500 g $15.37
Laboratory grade A0168 500 g $10.70
HAZARD ALERT: Slightly toxic by ingestion. LD50 2840 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water; not alcohol or acetone.
Color and Odor: White, odorless solid.
CAS No. 7783-20-2
Ammonium Sulfide
light solution
Reagent A0063 100 mL $41.13
HAZARD ALERT: Contact with acids or acid fumes may liberate flammable
and poisonous hydrogen sulfide gas. Strong skin and mucous membrane
irritant; toxic by skin absorption; vapor harmful. Even low concentrations may
cause headache and general discomfort.
Storage: Inorganic #5; keep tightly closed; yellow color intensifies as
substance ages.
Disposal: #23
Shelf Life: Good if stored safely; store in a Flinn Chem-Saf ™ Bag and then
inside a Flinn Saf-Stor™ Can.
Soluble: Water, alcohol and alkalis.
Color and Odor: Yellow/red liquid with rotten egg odor.
CAS No. 12135-76-1 as ammonium sulfide
Technical Note: The true sulfide form is only stable at a very low temperature
(i.e., 0 °C), and in the absence of water. The light solution (so-called
“yellow”) contains approximately 20% (NH4)2S or 8% sulfur and 8% ammonia
and is the common commercial solution.
Ammonium Thiocyanate
crystal
NH4SCN
F.W. 76.13
Reagent A0066 500 g $36.66
A0213 100 g 11.45
Laboratory grade A0148 500 g $25.21
HAZARD ALERT: Moderately toxic by ingestion. LD50 750 mg/kg.
Storage: Inorganic #7
Disposal: #26a
Shelf Life: Poor; deliquescent; store in a Flinn Chem-Saf ™ Bag.
Soluble: Water, alcohol, acetone, and ammonia.
Color and Odor: White or light pink, odorless solid.
CAS No. 1762-95-4
Incompatibility: Dangerous when heated to decomposition (170 °C) or in
contact with acids—fumes containing toxic HCN may be produced.
Ammonium Vanadate
see Ammonium Metavanadate
Color and Odor: White, odorless solid.
CAS No. 6484-52-2
Safety Purchase Suggestion: Do not store large quantities.
Technical Note: The granular lab grade material is easier to work with than
the crystalline reagent, which tends to clump together. The lab grade material
gives excellent results in quantitative thermochemistry experiments.
Incompatibility: Acids, chlorates, combustible materials, flammable liquids,
nitrites, sulfur, carbon, organic compounds and metals (especially finely
divided metals).
Ammonium Oxalate
laboratory grade, crystal
(NH4)2C2O4•H2O
F.W. 142.11
A0058 100 g $17.41
HAZARD ALERT: Moderately toxic by ingestion and inhalation; corrosive
to body tissue.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: White, odorless solid.
CAS No. 6009-70-7
Ammonium Persulfate
ammonium peroxydisulfate
reagent, crystal
(NH4)2S2O8
F.W. 228.21
A0059 500 g $20.85
HAZARD ALERT: Oxidizer; fire risk in contact with organic substances.
Corrosive; moderately toxic. LD50 689 mg/kg.
Storage: Inorganic #6
Disposal: #12a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: White, odorless solid.
CAS No. 7727-54-0
Ammonium Phosphate, Monobasic
ammonium dihydrogen phosphate
crystal
NH4H2PO4
F.W. 115.03
Laboratory grade A0060 500 g $24.24
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Slightly in water.
Color and Odor: White, odorless solid.
CAS No. 7722-76-1
Ammonium Phosphate, Dibasic
diammonium hydrogen phosphate
reagent, crystal
(NH4)2HPO4
F.W. 132.06
A0061 500 g $23.19
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water; not alcohol.
Color and Odor: White, odorless solid.
CAS No. 7783-28-0
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Fresh Chemicals?
You’re always guaranteed to receive highquality
chemicals from Flinn Scientific. For
example, very deliquescent materials are
packaged in a PVC-coated bottle inside
a Flinn Chem-Saf™ bag with a packet of
desiccant to ensure freshness. Does your
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Ammonium Nitrate continued
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