flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 55
Gibberellic Acid
Gibberellin A3
crystal
C19H22O6
F.W. 346.41
G0003 1 g $36.82
Storage: Organic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Slightly in water, methyl and ethyl alcohol and acetone; soluble in
aqueous solution of sodium bicarbonate and sodium acetate.
Color and Odor: White, odorless solid.
CAS No. 77-06-5
Technical Note: See Technical Note under Gibberellic Acid, Potassium Salt
for solution preparation instructions.
Glass Wool, Medium
G0023 454 g $95.19
HAZARD ALERT: Wear gloves when handling glass wool.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Indefinite
Soluble: Insoluble except in hydrofluoric acid.
Glauber’s Salt
see Sodium Sulfate
Glucose
For powder or granular material see Dextrose; for standard solutions of
glucose see the glucose listings that follow this cross reference.
Glucose Solution
dextrose
standard solutions
1 mL = 10 mg G0024 100 mL $10.28
1 mL = 2 mg G0025 100 mL 10.70
1 mL = 1 mg G0026 100 mL 10.67
Storage: Organic #2
Disposal: #26b
Shelf Life: Poor; please acquire only small quantities since
the shelf life is limited to one year once the bottle is opened.
Color and Odor: Colorless, odorless liquid.
Glucose-1-Phosphate, Disodium Salt
C6H11Na2O9P•4H2O
F.W. 376.16
G0005 1 g $30.47
Storage: Organic #2
Disposal: #26a
Shelf Life: Good, if kept dry. Store in a Flinn Chem-Saf ™ Bag.
Soluble: Water
Color and Odor: White, odorless solid.
CAS No. 56401-20-8
Glucose Test Strips
glucose test paper for urine sugar determination
package contains 100 test strips
T0004 1 pkg. $23.33
Storage: With test papers.
Disposal: #26a
Shelf Life: Indefinite
Glue, White
simple white glue
G0049 1 L $14.46
Storage: Miscellaneous nonhazardous organic material.
Disposal: #26a
Shelf Life: Fair
Soluble: Water
Color and Odor: White liquid with glue odor.
Glycerin
glycerol
C3H5(OH)3
F.W. 92.10
ACS Reagent G0019 100 mL $9.04
for electrophoresis
Laboratory grade G0007 500 mL $13.87
G0008 4 liters 90.78
HAZARD ALERT: Some people are allergic to glycerin and may experience
irritation to their skin and eyes. Contact with strong oxidants (chromium
trioxide, potassium chlorate, potassium permanganate) may cause an explosion.
LD50 12600 mg/kg.
Storage: Organic #2
Disposal: #26b
Shelf Life: Indefinite
Soluble: Water and alcohol; insoluble in some common organic solvents.
Color and Odor: Colorless, odorless liquid.
CAS No. 56-81-5
Glycerin Solution
15% v/v, aqueous solution
G0043 500 mL $10.54
For hazard alert, storage, disposal, etc., see Glycerin, G0007.
Glycerol
see Glycerin
Gram Iodine Solution
see Iodine Solution, Gram
Graphite Powder
90–97% G0010 500 g $20.48
HAZARD ALERT: A fire risk as fine powder. TLV 2.5 mg/m3.
Storage: Inorganic #4; store in a Flinn Saf-Stor™ Can.
Disposal: #26a
Shelf Life: Indefinite
Color and Odor: Gray/black, odorless solid.
CAS No. 7782-42-5
Guaiacol Solution, 0.2%
0.2% in isopropyl alcohol reducing agent for peroxidase enzyme activity
studies forms orange product with hydrogen peroxide and peroxidase
G0054 100 mL $9.83
HAZARD ALERT: Flammable liquid, irritating to body tissues. Slightly toxic
by ingestion and inhalation.
Storage: Organic #2 in a dedicated flammables cabinet. If a flammables
cabinet is not available, store in a Flinn Saf-Stor™ Can.
Disposal: #18a
Shelf Life: Good, if stored safely. Protect from heat and light.
Color and Odor: Colorless liquid, rubbing alcohol odor.
Guar Gum
laboratory grade, powder G0040 500 g $29.56
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Buff solid with freshly cut grass odor.
CAS No. 39421-75-5
Technical Note: This material is most frequently used for preparing slime.
Gypsum
see Calcium Sulfate
How to Neutralize a Base Spill
The common answer is to use vinegar to neutralize a base spill. Don’t
do it. You will have to add gallons of vinegar, and this will only make the
spill larger. Use anhydrous citric acid powder. It has three acid groups for
neutralization, low toxicity and is easily poured onto a spill. Keep a supply of
citric acid powder on hand any time you are working with bases. See pages
678–679 for a complete listing of spill control materials.
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