flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 71
Limewater Tablets
bottle of 100 tablets L0038 pkg./100 $8.20
Storage: Inorganic #4
Disposal: #10
Shelf Life: Superior to ready-made solution.
Soluble: Water (partially).
Color and Odor: White, odorless tablets.
Technical Note: Each tablet makes 100 mL of solution when dissolved in
water. For best results, crush the tablet and allow the solution to sit overnight
before use. Do not heat or boil the solution.
Lipase
enzyme, powder L0056 25 g $19.00
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Buff solid with decaying flesh odor.
Liqui-Nox®
see Cleaners
Lithium
sticks
Li
A.W. 6.94
L0057 2.5 g $20.85
L0024 10 g 38.65
(Both sizes packaged under mineral oil in
plastic bottles and then in a metal can
for safer storage)
HAZARD ALERT: Dangerous; water-reactive; explosion risk; flammable
solid. Use a Class D fire extinguisher or have a generous supply of dry sand to
use as a fire extinguisher. Corrosive to skin, eyes and respiratory tract.
Storage: Inorganic #1 under dry kerosene or dry oil. Store in a Flinn Chem-
Saf ™ Bag and then inside a Flinn Saf-Stor™ Can.
Disposal: #3
Shelf Life: Indefinite if stored safely. Do not store or use near water.
Soluble: In water and acids, releasing hydrogen gas.
Color and Odor: Silver/white, odorless solid.
CAS No. 7439-93-2
Lithium Carbonate
laboratory grade, powder
Li2CO3
F.W. 73.89
L0025 100 g $23.50
HAZARD ALERT: Possible teratogen; strong base when dissolved in
water; substance is corrosive to eyes and respiratory tract. Possible reproductive/
fertility hazard. Moderately toxic. LD50 525 mg/kg.
Storage: Inorganic #4
Disposal: #10
Shelf Life: Poor; substance hygroscopic.
Soluble: Slightly in water; insoluble in alcohol; soluble in dilute acid.
Color and Odor: White, odorless solid.
CAS No. 554-13-2
Lithium Chloride
reagent grade, granular
LiCl
F.W. 42.40
L0095 50 g $10.75
L0026 100 g 16.00
L0075 500 g 39.35
HAZARD ALERT: Moderately toxic by ingestion. LD50 526 mg/kg.
Storage: Inorganic #2
Lead Nitrate continued
HAZARD ALERT: Possible carcinogen. Moderately toxic by inhalation and
ingestion; strong oxidant; dangerous fire risk in contact with organic material;
body tissue irritant. Possible reproductive/fertility hazard.
Storage: Inorganic #3
Disposal: #27f
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: White solid with slight nitric acid odor.
CAS No. 10099-74-8
Lead Nitrate Solution
(as Pb(NO3)2)
1 Molar L0067 500 mL $9.95
0.5 Molar L0068 500 mL 9.50
0.1 Molar L0069 500 mL 8.73
For hazard alert, storage, disposal, etc., see Lead Nitrate, L0014.
Color and Odor: Clear, odorless liquid.
Lectin
mitosis activator (AP® Biology Investigation 7)
lyophilized powder extracted from red kidney beans
L0114 10 mg $37.50
HAZARD ALERT: Hemolytic; agglutinates human red blood cells. Use
with appropriate personal protective equipment to limit exposure.
Storage: Organic miscellaneous.
Disposal: #26a
Shelf Life: Poor; keep frozen until use.
Soluble: Water
Color and Odor: White, odorless solid.
Technical Note: Typical concentration is 10 mg/200 mL. Refrigerate solution
and use within one week.
Lemon Juice
L0042 15 oz $7.10
Storage: Organic #1
Disposal: #26b
Shelf Life: Limited; keep cool after opening.
Soluble: Water
Color and Odor: Yellow liquid with lemon odor.
Levulose
d-fructose
laboratory grade, crystal
C6H12O6
F.W. 180.16
L0020 100 g $ 9.04
L0074 500 g 23.50
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water, alcohol, and ether.
Color and Odor: White, odorless solid.
CAS No. 57-48-7
Light Sticks
see page 332
Lime, Slaked
see Calcium Hydroxide
Limewater Solution
calcium hydroxide saturated solution
140 mg/100 mL L0021 500 mL $ 4.89
L0022 4 liters 11.75
Storage: Inorganic #4
Disposal: #10
Shelf Life: Fair to poor; absorbs carbon dioxide from air. Keep your container
tightly closed.
Color and Odor: Clear and colorless if left undisturbed, odorless.
Technical Note: Use for detecting carbon dioxide gas. The solution always
contains some undissolved calcium hydroxide.
A Practical Goggle Policy
When the school owns the goggles, the school is responsible for their cleanliness.
Schools invest in sterilizers, cleaning solutions and other means of
ensuring sanitary goggles. Discuss with school administrators the practical
aspects of the students each owning their own goggles. The students can
purchase a pair of goggles from Flinn Scientific that can later be used to
increase safety for certain home tasks (e.g., fertilizing lawns, spraying pesticides,
auto repair, woodworking).
LITHIUM CHLORIDE continued on next page.
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