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  • Sodium chlorite, tech. nominally 80%

    Alfa Aesar

    Formula: ClNaO2 Formula weight: 90.44 Purity: tech. nominally 80% CAS Number: 7758-19-2 UN Number: UN1496 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2828.90 Hazard Statements: H272-H301-H310-H314 May intensify fire; oxidizer. Toxic if swallowed. Fatal in…

  • Sodium borohydride, 98%

    Alfa Aesar

    Synonym(s): Sodium tetrahydridoborate Formula: NaBH4 Formula weight: 37.83 Purity: 98% CAS Number: 16940-66-2 UN Number: UN1426 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2850.00 Hazard Statements: H301-H311-H331-H314-H318-H261 Toxic if swallowed. Toxic…

  • Strontium, Natural Sr, plasma standard solution, Specpure®, Natural Sr 100µg/ml

    Alfa Aesar

    Formula: Matrix 2 HNO3 UN Number: UN3264 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3822.00 Hazard Statements:

  • Silicone oil, for oil baths, usable range from -40 to +200°C

    Alfa Aesar

    Synonym(s): Dimethyl polysiloxane CAS Number: 63148-62-9 Harmonized Tariff Code:  3910.00

  • Sodium selenite, anhydrous, 99% min, typically 99.75% min (metals basis)

    Alfa Aesar

    Synonym(s): Selenious acid disodium salt Formula: Na2O3Se Formula weight: 172.94 Purity: 99% min, typically 99.75% min (metals basis) CAS Number: 10102-18-8 UN Number: UN2630 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2842.90 Hazard Statements: …

  • Sodium dihydrogen phosphate monohydrate, ACS, 98.0-102.0%

    Alfa Aesar

    Synonym(s): Monosodium orthophosphate, Sodium phosphate, monobasic Formula: NaH2PO4 H2O Formula weight: 137.99 (119.98anhy) Purity: 98.0-102.0% CAS Number: 10049-21-5 Harmonized Tariff Code:  2835.22 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Sudan IV

    Alfa Aesar

    Synonym(s): C.I. 26105, Scarlet Red Formula: C24H20N4O Formula weight: 380.45 CAS Number: 85-83-6 Harmonized Tariff Code:  2927.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Sodium hexametaphosphate, tech.

    Alfa Aesar

    Synonym(s): Sodium metaphosphate Formula: Na6O18P6 Formula weight: 611.77 CAS Number: 10124-56-8 Harmonized Tariff Code:  2835.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Silica gel 60, 0.060-0.2mm (70-230 mesh)

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22 Hazard Statements: H373 May cause damage to organs through prolonged or repeated exposure. Precautionary Statements: P260-P314-P501a Do not breathe dust/fume/gas/mist/vapours/spray. Get medical advice/attention if you feel unwell.…

  • Sodium chloride crystal optic disc, 25mm x 4mm, polished both sides

    Alfa Aesar

    EINECS: 231-598-3 Hazard Statements: H303 May be harmful if swallowed. Precautionary Statements: P312 Call a POISON CENTER or doctor/physician if you feel unwell. Harmonized Tariff Code: 9027.90 TSCA: Yes

  • Safranine O

    Alfa Aesar

    Synonym(s): C.I. 50240, 3,7-Diamino-2,8-dimethyl-5-phenylphenazinium chloride Formula: C20H19ClN4 Formula weight: 350.85 CAS Number: 477-73-6 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • SOC medium

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Silica gel desiccant, indicating, ACS

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22 Hazard Statements: H350 May cause cancer. Precautionary Statements: P281-P201-P202-P308+P313-P405-P501a Use personal protective equipment as required. Obtain special instructions before use. Do not handle until all safety…

  • Selenium(IV) bromide, 99+%

    Alfa Aesar

    Synonym(s): Selenium tetrabromide Formula: SeBr4 Formula weight: 398.60 Purity: 99+% CAS Number: 7789-65-3 UN Number: UN2923 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2812.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if inhaled. May…

  • Silver nitrate, Acculute Standard Volumetric Solution, Final Concentration 0.1N

    Alfa Aesar

    Formula: AgNO3 Formula weight: 169.87 CAS Number: 7761-88-8 UN Number: UN3093 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2843.21 Hazard Statements: H272-H314-H318-H290 May intensify fire; oxidizer. Causes severe skin burns and eye damage. Causes serious eye…

  • Sodium chloride, 99.99% (metals basis)

    Alfa Aesar

    Formula: NaCl Formula weight: 58.44 Purity: 99.99% (metals basis) CAS Number: 7647-14-5 Harmonized Tariff Code:  2501.00 Risk Phrases: 36 Irritating to eyes. Safety Phrases: 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

  • Sodium carbonate, ACS primary standard, 99.95-100.05% (dried basis)

    Alfa Aesar

    Formula: Na2CO3 Formula weight: 105.99 Purity: 99.95-100.05% (dried basis) CAS Number: 497-19-8 Harmonized Tariff Code:  2836.20 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective gloves/protective…

  • Sodium 1-heptanesulfonate, 99% (dry wt.), water <2%

    Alfa Aesar

    Synonym(s): 1-Heptanesulfonic acid sodium salt Formula: CH3(CH2)6SO3Na Formula weight: 202.24 Purity: 99% (dry wt.), water CAS Number: 22767-50-6 Harmonized Tariff Code:  2904.10

  • Sodium acetate, anhydrous, 99%

    Alfa Aesar

    Synonym(s): Acetic acid sodium salt Formula: C2H3NaO2 Formula weight: 82.03 Purity: 99% CAS Number: 127-09-3 Harmonized Tariff Code:  2915.29

  • Silver powder, spherical, APS 0.5-1 micron, 99.9% (metals basis)

    Alfa Aesar

    Purity: 99.9% (metals basis) CAS Number: 7440-22-4 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  7106.10 Risk Phrases: 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Safety Phrases: 57-60 …

  • Sodium Nitrate, ACS, 99.0% min

    Alfa Aesar

    Formula: NaNO3 Formula weight: 84.99 Purity: 99.0% min CAS Number: 7631-99-4 UN Number: UN1498 Hazard Class: 5.1 Packing Group: III Harmonized Tariff Code:  3102.50 Hazard Statements: H272-H302 May intensify fire; oxidizer. Harmful if swallowed. Precautionary Statements:…

  • Silicon, Oil based standard solution, Specpure r, Si 5000µg/g

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Sebacoyl chloride, 97%

    Alfa Aesar

    Synonym(s): Decanedioyl dichloride, Octane-1,8-dicarbonyl chloride Formula: ClCO(CH2)8COCl Formula weight: 239.14 Purity: 97% CAS Number: 111-19-3 UN Number: UN2922 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2917.19 Hazard Statements: H301-H310-H314-H318 …

  • Serotonin hydrochloride, 99%

    Alfa Aesar

    Synonym(s): 3-(2-Aminoethyl)-5-hydroxyindole hydrochloride, 5-HT Formula: C10H12N2O HCl Formula weight: 212.68 Purity: 99% CAS Number: 153-98-0 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2933.99 Hazard Statements: H301 Toxic if…

  • Sulfur in Heavy Mineral Oil standard solution, Specpure r, blank (0.0000%)

    Alfa Aesar

    Harmonized Tariff Code:  3822.00 Hazard Statements: H350 May cause cancer. Precautionary Statements: P281-P201-P202-P308+P313-P405-P501a Use personal protective equipment as required. Obtain special instructions before use. Do not handle until all safety precautions have been read and…

  • Sodium tetrachloroaluminate

    Alfa Aesar

    Synonym(s): Aluminum sodium chloride, Sodium chloroaluminate Formula: AlCl4Na Formula weight: 191.78 CAS Number: 7784-16-9 UN Number: UN3260 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2827.39 Hazard Statements: H314-H318 Causes severe skin burns and eye…

  • Sodium sulfide nonahydrate, ACS, 98.0% min

    Alfa Aesar

    CAS No. : 1313-84-4 MDL: MFCD00149184 EINECS: 215-211-5 Formula: Na2S•9H2O Formula Weight: 240.18 (78.04anhy) Form: Crystalline Melting Point: ca 50° dec. Density: 1.427 Sensitivity: Light Sensitive &…

  • Sodium fluoride, 99.99% (metals basis)

    Alfa Aesar

    Formula: FNa Formula weight: 41.99 Purity: 99.99% (metals basis) CAS Number: 7681-49-4 UN Number: UN1690 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2826.19 Hazard Statements: H301-H315-H319 Toxic if swallowed. Causes skin irritation. Causes serious eye…

  • Sulfuric acid, 6.0N Standardized Solution

    Alfa Aesar

    Formula: H2SO4 Formula weight: 98.08 CAS Number: 7664-93-9 UN Number: UN2796 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2807.00 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • Sodium borohydride, 98% min

    Alfa Aesar

    Synonym(s): Sodium tetrahydridoborate Formula: BH4Na Formula weight: 37.83 Purity: 98% min CAS Number: 16940-66-2 UN Number: UN1426 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2850.00 Hazard Statements: H301-H311-H331-H314-H318-H261 Toxic if swallowed.…

  • Sodium perchlorate monohydrate, 97+%

    Alfa Aesar

    Formula: NaClO4 H2O Formula weight: 140.48 (122.46anhy) Purity: 97+% CAS Number: 7791-07-3 UN Number: UN1502 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2829.90 Hazard Statements: H271-H301 May cause fire or explosion; strong oxidizer. Toxic if swallowed. …

  • Sodium Chloride, ACS, 99.0% min

    Alfa Aesar

    Formula: NaCl Formula weight: 58.44 Purity: 99.0% min CAS Number: 7647-14-5 Harmonized Tariff Code:  2501.00 Risk Phrases: 36 Irritating to eyes. Safety Phrases: 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

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