74 1-800-452-1261
Magnesium Hydroxide Solution
saturated suspension of Mg(OH)2 in water
M0122 500 mL $14.55
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Poor unless kept tightly closed; absorbs CO2 from air.
Color and Odor: Milky white, odorless liquid.
Technical Note: This suspension contains approx. 300 g/L.
Magnesium Nitrate
crystal
Mg(NO3)2•6H2O
F.W. 256.43
Reagent M0114 100 g $ 8.95
M0012 500 g 16.35
Laboratory grade M0204 500 g $13.70
HAZARD ALERT: Strong oxidant; fire and explosion risk in contact with
organic material. Skin, eye, and respiratory tract irritant. LD50 5440 mg/kg.
Storage: Inorganic #3
Disposal: #26b
Shelf Life: Fair to poor; substance deliquescent; store in a Flinn Chem-Saf ™ Bag.
Soluble: Water and alcohol.
Color and Odor: Color can vary from white to pale yellow, odorless solid.
CAS No. 13446-18-9
Magnesium Nitrate Solution
0.1 Molar
(as Mg(NO3)2•6H2O) M0123 500 mL $7.50
HAZARD ALERT: Skin and eye irritant.
Storage: Inorganic #3
Disposal: #26b
Shelf Life: Good
Color and Odor: Colorless, odorless liquid.
Magnesium Oxide
laboratory grade, powder
MgO
F.W. 40.32
M0013 100 g $11.05
M0014 500 g 27.75
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Fair to poor; substance absorbs CO2 and water from the air; store
in a Flinn Chem-Saf ™ Bag.
Soluble: Slightly in water; soluble in acids and ammonium salt solutions.
Color and Odor: Off-white, odorless solid.
CAS No. 1309-48-4
Magnesium Sulfate
epsom salts, heptahydrate
crystal
MgSO4•7H2O
F.W. 246.50
Reagent M0016 100 g $ 7.15
M0017 500 g 25.25
Laboratory grade M0018 500 g $ 7.45
M0019 2 kg 22.05
HAZARD ALERT: Irritates eyes and respiratory tract.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Poor; substance hygroscopic.
Soluble: Water and glycerin; slightly in alcohol.
Color and Odor: Colorless, odorless solid.
CAS No. 10034-99-8
Magnesium Sulfate
anhydrous
laboratory grade, powder
MgSO4
F.W. 120.39
M0115 100 g $ 19.85
M0020 500 g 36.50
For hazard alert, storage, disposal, etc.,
see Magnesium
Sulfate, M0016.
Color and Odor: White, odorless solid.
CAS No. 7487-88-9
Magnesium Sulfate Solution
(as MgSO4•7H2O)
0.5 Molar M0167 500 mL $12.00
Storage: Inorganic #2
Disposal: #26b
Shelf Life: Good
Color and Odor: Colorless, odorless liquid.
Malachite Green Oxalate
basic green 4
biological stain/indicator
pH 0.0 yellow to 2.0 green and
11.6 blue-green to 14.0 colorless M0129 10 g $15.00
HAZARD ALERT: Moderately toxic by ingestion. LD50 275 mg/kg.
Storage: Organic #9
Disposal: #5
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Deep metallic green, odorless solid.
CAS No. 2437-29-8
C.I. #42000
Malachite Green Solution, 1%, Aqueous
1%, aqueous M0100 100 mL $13.10
Storage: Organic #9
Disposal: #26b
Shelf Life: Good if stored safely.
Color and Odor: Deep green, odorless solution.
Maleic Acid
butenedioic acid
powder
HO2CCH=CHCO2H
F.W. 116.07
M0090 200 g $25.00
HAZARD ALERT: Moderately toxic by ingestion; severe body tissue irritant.
LD50 708 mg/kg.
Storage: Organic #1
Disposal: #24a
Shelf Life: Indefinite
Soluble: Water, alcohol, and acetone.
Color and Odor: White solid with faint tea odor.
CAS No. 110-16-7
Malonic Acid
propanedioic acid
crystal
HO2CCH2CO2H
F.W. 104.06
M0091 25 g $11.70
HAZARD ALERT: Strong irritant; slightly toxic; when dissolved in water
it is a strong acid; corrosive to eyes, skin and respiratory tract. Malonic acid
has been used as a drug intermediate (precursor). This substance is regulated
in some states like California. Check local regulations before purchasing. LD50
1310 mg/kg.
Storage: Organic #1
Disposal: #24a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: White solid with faint beef bouillon odor.
CAS No. 141-82-2
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