Tin Test Strips 10-200 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Purchase Tin Test Strips 10-200 ppm EM Quant (1 PK of 100) HAZMAT fee incl

Tin Test Strips 10-200 ppm EM Quant  (1 PK of 100) HAZMAT fee incl MSDS (Material Safety Data Sheet)

10028 EM Quant® Tin Test

Purchase Tin Test Strips 10-200 ppm EM Quant (1 PK of 100) HAZMAT fee incl

  • Gallade Part#: 10028
  • Mfr Part#: 10028-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 100 Strips
  • Misc: HAZMAT UN1760 PGII CORROSIVE

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  • EM Quant® Tin Test, Catalog No. 10028

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

    General

    The Tin Test can be used as a rapid semi-quantitative test for tin and tin compounds in electroplating baths, reducing agents, stabilizers, catalysts, disinfectants, fungicides and mordants used in the textile industry and, more especially, in canned juices and preserves. Depending on the quality of the tin plating, the edge of the can and the storage temperature, significant quantities of tin may be absorbed by the product. Once a can has been opened, its contents should be transferred to a more suitable container. This also applies to evaporated milk. Tin levels in foods should not exceed 25-50mg/l, though for reasons more of taste than toxicity.

    Principle of the Method

    Divalent tin reacts with toluene-3,4-dithiol to form a red dye. Tetravalent tin is reduced by adding a mixture of reducing agents.

    Graduation

    0 - 10 - 25 - 50 - 100 - 200mg/l (ppm) SN2+

    Directions

    1. Rinse the measuring vessel several times with some of the sample solution and fill to the 5-ml mark.
    2. Add 13 drops of reagent (reducing mixture) and swirl carefully to mix.
    3. Leave the solution to stand for 5 minutes.
    4. Immerse a test strip in the solution for 5 minutes.
    5. Remove the test strip, wipe off any surplus liquid by stroking the edge against the rim of the vessel and compare the reaction zone with the color scale.

    Safety Precautions

    Keep the reagent (reducing mixture) away from the skin (contains 32% hydrochloric acid and thioglycollic acid). In the event of contact, rinse well immediately with plenty of water. Seek immediate medical attention if substance enters the eye.

    Influence of Anions and Cations

    Any interference is most noticeable at the color value of 25mg/l. The following list of interfering ions has been drawn up for a tin ion content of 25mg/l.

    The following ions interfere at concentrations of above 25mg/l: Pb2+, Cu2+, Mo6+, Pd4+, Hg+, Hg2+, Se4+, Ag+, Bi3+, W6+

    Above 100mg/l: Sb3+, Fe2+, Fe3+, Tl+

    Above 500mg/l: As5+, Cd2+, Ni2+, V5+, NO-2, S-2, CrO4-2, CrO2-7

    Above 1000mg/l: Cr3+, Co2+

    No interference is caused by the presence of 1000mg/l of the following: Al3+, B3+, Ba2+, Be2+, Ca2+, Ce3+, K+, Li+, Mg2+, Mn2+, Rb+, Sr2+, Th4+, Ti4+,U6+, Zn2+, Zr4+, Na+, acetate, citrate, tartrate, ascorbic acid, oxalic acid, CO2-3, SO2-4, CN-, SCN-, Cl-, F-, I-, Br-, PO3-4, PO2-3, NO-3, SO2-3, S2O3-2, S2O2-8, ClO-3, ClO-4, MnO-4, BrO-3, IO-3, Titriplex®III

    Standard (1000mg/l)

    Dissolve 0.19g of tin chloride in 31ml of 25% hydrochloric acid and make up to 100ml with distilled water.

    Package Size

    10028 EM Quant® Test strips and reagents

    Tin Test for 50 determinations

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