Stainless Steel Ball Joint Clip, for 35/20 Joint
This No. 35 stainless steel joint clip is used to hold size 35/20 spherical glass ball-and-socket joints. It is spring loaded and easily adjustable. NC-13799
$19.95Search Products
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18.5 cm Filter Paper, Qualitative 35 micron - Fast, Pk/50
FAST flow. This is an extremely fast filtering grade and has a large particle retention. A thicker filter paper with higher loading capacity. Used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions. NC-14223
$26.95
Aluminum Sulfate, 500g
Lab grade Granular — Also called alum, Aluminum Sulfate crystals are lab grade, appear white and are soluble in water. Non-combustible. NC-2304
$15.95
Borosilicate Clear Glass Tubing, 12mm O.D., 15 inch, Pk/6
• O.D: 12mm
• I.D: 10mm
• Wall: Thick (1mm)
• Length: 381mm (15")
Sold as Pk/6 NC-10896
Computer Interface Cable (93920)
Clearance priced! MSRP is $30.95 - NOW $17.21!
The Celestron RS-232 Cable connects your computerized telescope to a laptop or PC for control via various planetarium software programs. NC-6610 $17.21
Cupric Nitrate, 2.5kg
Lab grade. Crystal — This is used in several patina formulas. See More Info for formula list. Restricted to Standard Ground only within the lower 48 U.S. states. NC-10229
$112.95
n-Hexane, 95%, Absolv, 4L
Absolv (HPLC, TLC, GC) grade — Typical residue after evaporation is <1ppm. The contaminant-free purity of ACS Reagent Grade n-Hexane is desired as a special-purpose nonpolar solvent, particularly in herbal extraction. Restricted to Standard Ground only. Adult signature required. HazMat fee applies. NC-14061
$149.95
pH Buffer Solution, 10.0, 1 gal.
This pH calibration solution is colored blue for easy recognition. Standardized at 25°C against NIST standard reference material. NC-1958
$59.95
Rubber Stopper, Size #7
Fits 500ml Pyrex Erlenmeyer Flask; 500ml Pyrex Filter Flask; and 250ml Bomex Filter Flask. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0962
$1.15
Ammonium Carbonate (Baker's Ammonia), Food Grade, 8 oz.
FCC (Food) grade — Our ammonium carbonate is “Baker’s Ammonia” consisting of pure ammonium carbonate. Also known as Hartshorn Salt. Having high food grade purity, it is popularly used as a leavening agent for flat pastries. NC-11841
$14.95
Cupric Nitrate, 12.5kg
Lab grade. Crystal — This is used in several patina formulas. See More Info for formula list. Restricted to Standard Ground only. Adult signature required. HazMat fee applies. NC-10418
$425.00
Economy Magnetic Stir Bar, Cylindrical PTFE, 25 x 8mm, Pk/5
This PTFE economical cylindrical-shaped, top quality magnetic spin bar features an ALNICO V magnetic core, assuring high strength magnetization. The inert nonstick PTFE coating resists harsh chemicals, is resistant to scratching and high temperatures. Sold as a pack of five stir bars. NC-14550
$16.95