Chemicals, Powdered Stains, and Reagents

Chemicals, Powdered Stains, and Reagents
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    Sodium Borate,Crystal,Reagent/500gm
    Item # : SPS0785
    Sodium Borate is commonly referred to as Borax and is used as a water softening agent.

    Assay: 99.5%-105.0%
    pH of a 0.01M Solution @ 25°C: 9.15-9.20
    Insoluble Matter: max 0.005%
    Chloride: max 0.001%
    Phosphate: max 0.001%
    Sulfates: max 0.005%
    Calcium: max 0.005%
    Heavy Metals: max 0.001%
    Iron: 5ppm
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    SODIUM BISULFITE, Reagent /500gm
    Item # : SPS0685
    This product contains of varying proportions of sodium bisulfite, and sodium metabisulfite.

    F.W. 104.06
    Assay: 58.5%
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    SODIUM AZIDE, Granular Reagent/25gm
    Item # : SPS0477
    Sodium Azide can be used in organic synthesis and biochemistry as a probe reagent and preservative.

    F.W. 65.01
    Assay: Minimum 99%
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    SODIUM ACETATE, Anhy.Reag.ACS/500gm
    Item # : SPS0385
    Sodium Acetate is commonly used as a buffer to help keep a near constant pH

    F.W. 82.03
    Assay: Minimum 99%
    pH of a 5% Solution @ 25.0°C: 7.0-9.2
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    SAFRANINE O (C.I.50240) /10gm
    Item # : SPS0274
    Safranine O is a biological stain that is used in various histology staining protocols. It is typically used to color nuclei red.

    Basic Red 2. Classed chemically as a phenazine color.

    F.W. 350.85
    Assay: 85.0%
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    SAFFRON (C.I.75100) /1gm
    Item # : SPS0166
    Saffron can be used as a reagent in many laboratory procedures.

    Synonyms: French Saffron Natural Yellow 6 Spanish Saffron

    F.W. 328.41
    Absorption: 427nm
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    RHODANINE /25gm
    Item # : SPR0377
    Rhodanine is a reagent for detection of silver.

    F.W. 133.18
    Assay: 97.0%
    Melting Point: 167°-169°C
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    RHODAMINE B (C.I.45170) /25gm
    Item # : SPR0277
    Rhodamine B is classed chemically as a xanthene color. and can be used for tungsten and antimony determinations. Possible carcinogen.

    F.W. 479.02
    Absorption: 543nm
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    Polyethylene Glycol 1450 NF / 500GM
    Item # : SPP3485
    Polyethylene Glycol 1450, NF, commonly referred to as PEG, is a polyether compound that is used in a wide variety of fields including medicine due to its low toxicity.

    M.W. 1305-1595
    pH OF A 5% SOLUTION @ 25C: 4.5 - 7.5
    Heavy Metals: 5ppm
    Free Ethylene Oxide: 10 ug/g
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    Potassium Citrate, Granular/500gm
    Item # : SPP3385
    White, crystalline powder that is hygroscopic. It has no odor and has a slightly salty taste. It is a potassium salt of citric acid.

    Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic Acid Tripotassium Salt Tripotassium Citrate Tripotassium 2-Hydroxypropane-1,2,3-tricarboxylate

    CAS: 6100-05-6
    M.W.: 324.41
    Assay (Dried Basis): 99.0 - 100.5 %
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