Aluminum Test Strips 10-250 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Purchase Aluminum Test Strips 10-250 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Aluminum Test Strips 10-250 ppm EM Quant   (1 PK of 100)  HAZMAT fee incl MSDS (Material Safety Data Sheet)

EM Quant® Aluminum Test, Catalog No. 10015

Test strips and reagent for the detection and semi-quantitative determination of aluminum ions

General

Aluminum compounds are used as fillers; also as flocculating agents in water works, swimming pools, paper mills, etc. The test, which is largely interference-free, can be directly used to check the integrity and efficiency of filtering systems as part of a general plan of in-process controls.

Wastewater discharged from aluminum smelting and processing plants requires regular monitoring, as aluminum does great harm to fish and other aquatic organisms.

Significant quantities of aluminum may find their way into wine and beer from damaged aluminum casks, etc. The illicit use of alum or other aluminum salts for fining and of preservatives containing aluminum also raises levels of aluminum. As little as 10mg/l aluminum can spoil wine. Concentrations of 10-20mg/l cause beer and wine to become cloudy and give it a characteristic harsh metallic taste.

Principle of the Method

Aluminum ions are converted by reaction with an alkali into aluminate, which forms a red lake with the ammonium salt of aurintricarboxylic acid. The test is highly sensitive and largely interference-free.

Graduation

0 - 10 - 25 - 50 - 100 - 250mg/l (ppm) Al3+

Directions

  1. Rinse the measuring vessel several times with some of the sample and fill to the 5ml mark.
  2. Adjust to pH 13 by adding reagent 1 (potassium hydroxide solution) dropwise. Use pH indicator strips to measure the pH. Filter off any precipitate which may form.
  3. Immerse the reaction zone in the solution for 1 second. Remove excess liquid by stroking the edge of the strip against the rim of the vessel.
  4. Add one drop of reagent 2 (buffer) to the reaction zone, spread evenly and allow to react for 1 minute.
  5. Remove excess reagent by stroking the edge of the strip against the rim of the vessel, wait 1 minute, and compare the reaction zone with the color scale.

Note

The reaction zone is initially deep red. This is due to the reagent used. The final color is only achieved once the reaction has taken place.

Safety Precautions

Keep reagent 1 (47% potassium hydroxide solution) away from the skin. In the event of contact, rinse well immediately with plenty of water. Seek immediate medical attention if substance enters the eye.

Influence of Anions

There is no interference at less than:

1000mg/l Br, BrO3, Cl, ClO3, ClO4, [Fe(CN)6]3–/4–, IO3, IO4, Mo7O246–NO2, NO3, SCN, SeO32–, SO42––, S2O32–, S2O82–, ascorbate, oxalate or tartrate.
500mg/l CN, CrO42–, OCN, S2O42–, VO3, acetate, citrate, succinate
250mg/l F, N3-, S2O52–, WO42–
100mg/l MnO4-, PO43–, S2–, SO32–

Influence of Cations

There is no interference at less than:

1000mg/l Ag+, As3+, Au3+, Ba2+, Bi3+, Ca2+, Cd2+, Ce3+/4+, Co2+, Cr3+, Hg+, Hg2+, Mg2+, Mn2+, NH4+, Pb2+, Rb+, Sb3+, Sn2+, Sr2+, Tl+, Ti4+, Zn2+, Zr4+
50mg/l Fe2+/3+
25mg/l VO2+
10mg/l Cu2+
2mg/l Be2+

Elimination of Interference

Most of the potential interferences listed above can be avoided by passing the sample solution through an ion exchanger as follows:

Allow 10ml of sample solution to trickle slowly (1 drop per second) through a glass column (diameter 5-10 mm) containing 1 g of Amberlite® IRA400 strong-base anion exchanger. Add 5 drops of reagent 1 to 5ml of the eluate and pass slowly (1 drop per second) through a second column containing 1 g of Amberlite® IR120 strong-acid cation exchanger. Perform the determination, starting at point 3 of the directions.

Standard (1000mg/l)

Aluminum standard solution, 500ml.

Package Size

10015 EM Quant® Test strips and reagent

Aluminum Test for 100 determinations

Purchase Aluminum Test Strips 10-250 ppm EM Quant (1 PK of 100) HAZMAT fee incl

  • Gallade Part#: 10015-1
  • Mfr Part#: 10015-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 100 Strips
  • Misc: HAZMAT UN1814 PGII CORROSIVE

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