Page 102 - Demo

Chemicals
Sodium Metasilicate
 HAZARD ALERT: Slightly toxic by ingestion; body tissue irritant. LD50 1153 mg/kg.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water (cold); not alcohol.
Color and Odor: White, odorless solid.
CAS No. 13517-24-3
Technical Note: Cannot be used to make sodium silicate solutions for use in crystal-growing experiments or the preparation of a Superball®. Sodium silicate solution must be prepared at high pressure and cannot be made in lab. See page 396 for commercial sodium silicate (water glass) solution.
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SODIUM NITRATE continued
Color and Odor: White, odorless solid.
CAS No. 7631-99-4
Sodium Nitrate Solution
Storage: Inorganic #3
Disposal: #26b
Shelf Life: Indefinite
Color and Odor: Colorless, odorless liquid.
Sodium Nitrite
laboratory grade, crystal
Na2SiO3•9H2O F.W. 284.20
S0158
500 g
$18.35
(as NaNO3)
0.5 Molar
S0246
500 mL
$8.00
0.1 Molar
S0248
500 mL
7.50
reagent grade, granular
NaNO2 F.W. 69.00
S0220
100 g
$11.95
S0092
500 g
25.60
sodium nitroprusside
for detection of the amino acid cysteine reagent grade, crystal
Na2Fe(CN)5NO•2H2O F.W. 297.91
S0221
25 g
$55.15
Sodium Molybdate(VI)
 HAZARD ALERT: Slightly toxic by ingestion. Storage: Inorganic #8
Disposal: #6
Soluble: Water
Color and Odor: White, odorless solid. CAS No. 10102-40-6
Sodium Monohydrogen Phosphate
see Sodium Phosphate, Dibasic
Sodium Nitrate
 HAZARD ALERT: Strong oxidizer; avoid friction or shock—explo- sions have occurred; moderately toxic by ingestion. LD50 1267 mg/kg. Storage: Inorganic #3
Disposal: #26b
 HAZARD ALERT: Strong oxidizer; fire and explosion risk if heated; highly toxic by ingestion and inhalation. LD50 180 mg/kg.
Storage: Inorganic #3 in a Flinn Chem-Saf TM Bag inside a locked poisons cabinet.
Disposal: #12b
Shelf Life: Indefinite
Soluble: Water; slightly in alcohol.
Color and Odor: Faint yellow, odorless solid. CAS No. 7632-00-0
Sodium Nitroferricyanide
 HAZARD ALERT: Highly toxic by ingestion and inhalation. Storage: Inorganic #7
Disposal: #14. P-Listed (P030); purchase small amounts for effec- tive inventory control.
Shelf Life: Poor; hygroscopic.
Soluble: Water; slightly in alcohol.
Color and Odor: Red/purple, odorless solid. CAS No. 13755-38-9
Sodium Oxalate
 HAZARD ALERT: Slightly toxic by ingestion; body tissue irritant. LD50 (mouse) 5094 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Poor; hygroscopic.
Color and Odor: White, odorless solid. CAS No. 62-76-0
Sodium Oxalate Solution
Storage: Inorganic #2
Disposal: #26b
Shelf Life: Good
Color and Odor: Clear, odorless liquid.
reagent grade, crystal
Na2MoO4•2H2O F.W. 241.97
S0219
25 g
$22.25
powder Na2C2O4 F.W. 134.00
Reagent
S0422
25 g
$ 9.05
S0094
100 g
17.00
S0095
500 g
54.25
Laboratory grade
S0438
100 g
$15.20
NaNO3 F.W. 84.99
Reagent
S0281
100 g
$ 8.15
crystal
S0088
500 g
22.65
Laboratory grade
S0090
500 g
$ 9.95
granular
S0091
2 kg
24.05
Shelf Life: Indefinite
Soluble: Water; slightly in alcohol.
Continued on next column.
When Should I Discuss
Laboratory Safety?
Every day! Yes, make safety a part of every lecture, lab and chemical demonstration. Review one aspect of the safety contract for one minute every day or discuss the safety proce- dures of a lab or the chemical demonstration. Make safety a foundational part of your curriculum.
0.1 Molar
(as Na2C2O4)
S0249
500 mL
$6.80