Page 16 - Demo

14
Chemicals
1-800-452-1261
Ammonium Citrate
Ammonium Hydroxide
14.8 Molar
ACS reagent
28–30% NH3
flinnsci.com
dibasic
reagent, crystal
(NH4)2HC6H5O7
F.W. 226.19
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water; slightly in alcohol. Color and Odor: White, odorless solid. CAS No. 3012-65-5
A0174
A0051
100 mL 500 mL 2.5 liters 2.5 liters
$ 10.00 14.15 28.10 37.35
Ammonium Dichromate
reagent, crystal (NH4)2Cr2O7 F.W. 252.06
(Packaged in PVC-coated bottle)
 HAZARD ALERT: Both liquid and vapor are extremely irritating— especially to eyes. Dispense in a hood and be sure an eyewash is accessible. Moderately toxic by ingestion and inhalation. Serious respiratory hazard. LD50 350 mg/kg.
Storage: Inorganic #4 in a dedicated base cabinet. If one is not available store in a Flinn Saf-CubeTM.
Disposal: #10
Shelf Life: Indefinite if stored safely.
Color and Odor: Colorless liquid with strong ammonia odor.
CAS No. 1336-21-6
Cap Color Code: Green
Safety Purchase Consideration: Buy and store only small package sizes and small quantities. For safety reasons, Flinn offers larger sizes of ammonium hydroxide and other hazardous substances in PVC-coated bottles. We have attempted to price the products in these safer containers as low as possible.
*Ammonium hydroxide is exactly as described under catalog number A0052 but in a PVC-coated bottle. In the event of breakage, base and glass shards are safely retained in a PVC outer envelope. The PVC-coated bottle is a safer package choice.
 HAZARD ALERT: Known carcinogen. Very strong oxidizing agent; dangerous fire risk; dusts and solutions are toxic; irritant to eyes and skin. Possible reproductive/fertility hazard.
Storage: Inorganic #8
Disposal: #12a
Shelf Life: Fair; decomposes with slight heating; keep away from all organic materials.
Soluble: Water and alcohol.
Color and Odor: Orange, odorless solid.
CAS No. 7789-09-5
Incompatibility: Reducing agents, such as powdered metals, form an explosive mixture with magnesium metal powder. Avoid contact with oxidizable (flammable) organic compounds.
 SPECIAL HAZARD ALERT: The “volcano” experiment or demon- stration is a popular use of ammonium dichromate. When heated to decomposition, ammonium dichromate produces nitrogen, water, and chromium(III) oxide. Chromium compounds are known carcinogens. Because of this risk, the “volcano” demon- stration should be conducted under a well-ventilated hood or outdoors. This demonstration should never be done in a closed, poorly ventilated room. Strict hygiene should be observed before and after the combustion.
Ammonium Hydroxide Solution
Ammonium Dihydrogen Phosphate
see Ammonium Phosphate, Monobasic
Ammonium Ferrous Sulfate
see Ferrous Ammonium Sulfate
Ammonium Fluoride
reagent, crystal
NH4F A0268 F.W. 37.04
Ammonium Metavanadate
reagent, powder NH4VO3
F.W. 116.99
A0211 A0176
25 g 100 g
$15.80 50.80
HAZARD ALERT: Corrosive to tissue; toxic by ingestion and inhalation.
Storage: Inorganic #2
Disposal: #6
Shelf Life: Fair to poor; deliquescent; store in a Flinn Chem-Saf TM Bag.
Soluble: Cold water.
Color and Odor: White odorless solid.
CAS No. 12125-01-8
Shelf Life: Indefinite
Soluble: Slightly in cold water.
Color and Odor: Light yellow, odorless solid. CAS No. 7803-55-6
Ammonium Molybdate
ammonium molybdate (VI) tetrahydrate crystal
(NH4)6Mo7O24 • 4H2O
F.W. 1235.86
A0108
A0047 A0048 A0049
100 g
100 g 500 g 2 kg
$22.05
$ 9.50 24.95 98.80
NH4OH A0052
F.W. 35.05 A0227*
(as NH4OH)
6 Molar 3 Molar 1 Molar 0.5 Molar 0.1 Molar
A0192 A0193 A0097 A0194 A0098
500 mL 500 mL 1 liter 500 mL 1 liter
$ 8.50 6.90 11.05 7.45 11.35
For hazard alert, storage, disposal, etc., see Ammonium Hydroxide, A0174.
25 g
$27.80
HAZARD ALERT: Highly toxic; body tissue irritant; liberates poisonous ammonia gas if heated. LD50 58.1 mg/kg.
Storage: Inorganic #8
Disposal: #27d. P-Listed (P119); purchase small amounts for effec- tive inventory control.
Reagent Laboratory grade
A0228 A0054 A0306
25 g 100 g 100 g
$16.90 39.20 $31.90
Prevent Chemical Contamination
Stop one student’s carelessness from ruining an experiment for the rest of your class. Prevent contamination of chemical stock bottles by:
1. Never allowing student access to stock bottles.
2. Never returning unused chemicals to stock bottles. Pure chemicals help yield accurate results.
 HAZARD ALERT: Skin and eye irritant; moderately toxic by inges- tion. LD50 333 mg/kg.
Storage: Inorganic #8
Disposal: #6
Shelf Life: Indefinite
Soluble: Water; not alcohol.
Color and Odor: White, odorless solid. CAS No. 12054-85-2