Bestsellers in Laboratory Analytical Chemicals
Deionised Water HPLC 2,5L
R450,00
Deionised Water 2.5L HPLC HPLC water is specially treated to be most free of organics. There might be traces of ions.
Deionized water is pure from heavy metals and inorganic ions that interfere with analytical procedures employing atomic absorption photometry, chromatography, tissue culturing, etc. Lab grade pure DI water is useful in many industrial processes.
Application
Water (deionized) may be used for the following studies:
• Rinsing of slides.
• For the elimination of surfactant and excess silver ions during the preparation of silver nanoparticles.
• Preparation of powdered milk formula samples for the quantification of fluoride.
1.2-cyclohexylenedinitrilo-tetraacetic acid
R4550,00
1,2-Cyclohexanedinitrilotetraacetic acid, Chel™-CD, DCTA 100g
Sulfuric acid std sol 0.02N-1000ml
R793,90
Application:
Remove Chlorine Interference
Concentration:
0.020 N
Description :
Remove Interfering substance
EPA compliant:
Yes
Formula:
H2SO4 0.02 N
Method:
8288 (Acid)
Method Number 2:
8289 (Base)
Package Type:
Bottle
Parameter:
Alkalinity
Platform :
Solution
Quantity:
1 L
Range:
0 - 10
Range 2:
0 - 5000 mg/L CaCO3
1.2-cyclohexylenedinitrilo-tetraacetic acid
R4550,00
1,2-Cyclohexanedinitrilotetraacetic acid, Chel™-CD, DCTA 100g
Aluminum wire, diam. 0.58 mm, ≥99.99% trace metals basis
R8988,00
Aluminumwire, diam. 0.58 mm, ≥99.99% trace metals basis
assay
≥99.99% trace metals basis
form
wire
autoignition temp.
1400 °F
resistivity
2.6548 μΩ-cm
diam.
0.58 mm
bp
2460 °C (lit.)
mp
660.37 °C (lit.)
density
2.7 g/mL at 25 °C (lit.)
Ammonia Solution AR 2.5 Lt
R120,00
Ammonia Solution AR 2.5 Lt
Other names
Ammonium hydroxide, ammonia water, ammoniacal liquor, ammonia liquor, aqua ammonia, aqueous ammonia, ammonia
Formula: NH4OH
Molar mass: 35,04 g/mol
Density: 880 kg/m³
Boiling point: 24,7 °C
USES OF AMMONIA SOLUTION
It one of the main ingredients in household cleaning agents e.g window cleaners
Aqueous ammonia is used as an acidity regulator to bring down the acid levels in food
It is often found in solutions used to clean gold, silver, and platinum jewellery
Available also in: 5L, 10L, 25L
Ammonium Chloride Fine Crystals AR 500g
R189,00
Ammonium Chloride Fine Crystals AR 500g Ammonium chloride uses:
- treatment of severe metabolic alkalosis
- in oral acid loading test to diagnose distal renal tubular acidosis,
- to maintain the urine at an acid pH in the treatment of some urinary-tract disorders
- it is used as food additive working as an yeast nutrient in bread making