46 1-800-452-1261
Buffer Capsules
B0227 contains 11
capsules, one of each
pH value, and is great for
preparing solutions of pH
2–12 for pH indicators.
Buffer Capsules
pH accuracy ±0.02 at 25 °C
stable dry powder in capsules
quickly and completely soluble
each capsule makes 100 mL of buffer solution
10 capsules per vial
Catalog No. pH Value Price/Vial
B0101 2.00 $10.70
B0102 3.00 10.70
B0103 4.00 10.40
B0104 5.00 10.70
B0105 6.00 10.70
B0106 7.00 10.40
B0107 8.00 10.70
B0108 9.00 10.70
B0109 10.00 10.40
B0110 11.00 10.70
B0111 12.00 10.70
B0227* 2.00–12.00 17.30
*This special package contains 11 capsules, one of each pH value.
HAZARD ALERT: Low and high pH buffer solutions should be treated as
strongly acidic and alkaline solutions, respectively.
Storage: Wherever convenient—no special storage requirements.
Disposal: #26a
Shelf Life: Indefinite; consume minimal shelf space and are very stable.
Buffer Envelopes
Chemvelopes®
each envelope makes 500 mL of buffer solution
5 envelopes of a single pH per carton
pH accuracy ±0.02 at 25 °C
Catalog No. pH Value Price/Carton
B0112 2.00 $16.45
B0113 3.00 16.45
B0114 4.00 16.40
B0115 5.00 16.45
B0116 6.00 16.45
B0117 7.00 16.45
B0118 8.00 16.45
B0119 9.00 16.45
B0120 10.00 16.45
B0121 11.00 16.45
B0122 12.00 16.45
B0123* 2.00–11.00 34.20
*This special package contains 10 envelopes, one envelope of each pH value
from 2 to 11.
HAZARD ALERT: Low and high pH buffer solutions should be treated as
strongly acidic and alkaline solutions, respectively.
Storage: Wherever convenient—no special storage requirements.
Shelf Life: Excellent; very stable and convenient to store.
Technical Note: Aluminum foil, polyethylene, and paper protective envelopes.
Envelopes keep buffers dry and free-flowing. Each envelope makes
Buffer Envelopes continued
500 mL when added to distilled water. Included in the package is a 7-mL
dispensing
vial of a buffer preservative. The preservative contains an effective
antifungal, antibacterial agent. In addition, the preservative is a universal
indicator that tints neutral solutions green, acid solutions orange-red, and
basic solutions blue.
Buffer Solution Preservative
Colorless B0175 60 mL $17.05
Indicating B0176 60 mL 19.50
Technical Note: Buffer solutions, particularly basic pH buffers, tend to act
as a media for fungus and bacteria growth. This buffer preservative contains
a highly effective anti-fungal, anti-bacterial agent to provide long-term
protection for buffer solutions and does not affect pH value. The preservative
is available in two forms:
• preservative only (colorless) (B0175)
• preservative with indicator (B0176)
If the preservative with indicator is used, the buffer will be tinted green for
neutral solutions, orange-red for acid solutions and blue for basic solutions.
Please specify whether you want clear, non-indicating preservative or the
preservative with indicator. Three drops of preservative provides ample
protection and, in the case of the indicating preservative, a distinct tint for
100 mL of buffer solution.
Buffer Solution, Electrophoresis
see page 530
Burner Fuel
see Ethyl Alcohol (burner fuel)
Butanoic Acid
see Butyric Acid
2-Butanone
see Methyl Ethyl Ketone
n-Butyl Alcohol
1-butanol
reagent
CH3(CH2)2CH2OH
F.W. 74.12
Buffer Solutions
B0089, B0092, B0095
B0177 100 mL $ 8.62
B0032 500 mL 13.00
HAZARD ALERT: Moderate fire risk; moderately toxic by inhalation and
ingestion; eye irritant; absorbed by skin. LD50 790 mg/kg. TLV 152 mg/m3.
Storage: Organic #2 in a dedicated flammables cabinet; if one is not available,
store in a Flinn Saf-Stor™ Can.
Disposal: #18b. U-Listed (U031); purchase small amounts for effective inventory
control.
Shelf Life: Fair; substance may oxidize.
Soluble: Miscible with alcohol and ether; soluble with water.
Color and Odor: Colorless liquid with strong wine odor.
CAS No. 71-36-3
Continued on next column.
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