48 1-800-452-1261
Copper(II) Sulfate continued
HAZARD ALERT: Skin and eye irritant; toxic by ingestion. LD50 300 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Fair, slowly effloresces in the air.
Soluble: Water and methyl alcohol; slightly in ethyl alcohol and glycerol.
Color and Odor: Blue/white, odorless solid.
CAS No. 7758-99-8
Technical Note: Laboratory grade copper(II) sulfate pentahydrate powder
contains up to 0.7% of an insoluble anticaking agent, magnesium carbonate.
This additive is very effective in preventing clumping and hardening of the
chemical and makes the powder free-flowing. If a transparent solution is
needed, filter the mixture before use or add a small amount of 1 M hydrochloric
acid.
C0246
C0102
Forms of Copper(II) Sulfate
C0373
C0105
Copper(II) Sulfate
cupric sulfate, anhydrous
reagent, powder
CuSO4
F.W. 159.61
C0107 100 g $21.45
C0108 500 g 56.44
For hazard alert, storage, disposal, etc.,
see Copper(II) Sulfate, C0102.
Color and Odor: Off-white, odorless solid.
CAS No. 7758-98-7
Copper(II) Sulfate Solution
(as CuSO4•5H2O)
1 Molar C0246 500 mL $9.24
0.1 Molar C0247 500 mL 7.36
HAZARD ALERT: Slightly toxic by ingestion.
Storage: Inorganic #2
Disposal: #26b
Shelf Life: Good
Color and Odor: Blue/green, odorless liquid.
Copper(II) Sulfate Stock Solution
20%
for preparing any strength of solution for determining
specific gravity of blood and plasma
specific gravity: 1.100 20/20 °C
C0156 500 mL $16.88
HAZARD ALERT: Slightly toxic by ingestion.
Storage: Inorganic #2
Disposal: #26b
Shelf Life: Good
Color and Odor: Blue, odorless liquid.
Copper(II) Sulfate Electrolyte Solution
contains cupric sulfate and sulfuric acid
C0249 500 mL $10.71
HAZARD ALERT: Toxic; corrosive; acid solution.
Storage: Inorganic #2
Disposal: #24b
Shelf Life: Good
Color and Odor: Blue, odorless liquid.
Technical Note: Suitable for copper electroplating experiments and
demonstrations.
Corn Oil
C0090 473 mL $9.19
Storage: Organic #3
Disposal: #26a
Shelf Life: Indefinite
Soluble: Organic solvents; slightly in alcohol; not water.
Color and Odor: Amber, odorless liquid.
CAS No. 8001-30-7
Corn Syrup
dextrose syrup C0091 16 oz. $6.87
Storage: Organic #2
Disposal: #26b
Shelf Life: Fair to good.
Soluble: Water; slightly in alcohol.
Color and Odor: Colorless, odorless liquid.
CAS No. 8029-43-4
Cotton
See page 96
Craftcast
see Polyurethane Foam System
Cream of Tartar
see Potassium Bitartrate
Crystal Violet
gentian violet
indicator/biological stain
pH 0.0 yellow to 1.8 violet-blue
reagent
C25H30ClN3
F.W. 408.00
C0125 10 g $12.15
HAZARD ALERT: Moderately toxic by ingestion; body tissue irritant. LD50
420 mg/kg.
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Pea green solid with musty odor.
CAS No. 548-62-9
C.I. #42555
Alcohols and Explosions
Reports suggest that secondary alcohols, such as sec-butyl alcohol and
isopropyl alcohol, can develop explosive organic peroxides. Organic peroxides
are unlikely to be a problem if the alcohols are fresh. Solution: Always
know the age of your chemicals (Flinn chemicals are all date-labeled), and
use only fresh materials. Also, do not distill any alcohols to dryness since
this will concentrate any explosive peroxides that may have formed.
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