Alfa Aesar

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  • Silica gel 60, 0.040-0.063mm (230-400 mesh), 99.5% (metals basis)

    Alfa Aesar

    Purity: 99.5% (metals basis) 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…

  • Sulfuric acid, 0.1N Standardized Solution

    Alfa Aesar

    Formula: H2SO4 Formula weight: 98.08 Harmonized Tariff Code:  2807.00

  • Sodium hydrogen arsenate heptahydrate, 98%

    Alfa Aesar

    Synonym(s): Arsenic acid disodium salt Formula: Na2HAsO4 7H2O Formula weight: 312.01 (185.94anhy) Purity: 98% CAS Number: 10048-95-0 UN Number: UN1685 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2842.90 Hazard Statements: H301-H331-H350 Toxic if…

  • Selenium powder, -325 mesh, 99.5% (metals basis)

    Alfa Aesar

    Purity: 99.5% (metals basis) CAS Number: 7782-49-2 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2804.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if inhaled. May cause damage to organs through prolonged or repeated exposure. …

  • SPADNS

    Alfa Aesar

    Synonym(s): Sulfanilic acid azochromotrope, 2-(4-Sulfophenylazo)chromotropic acid trisodium salt Formula: C16H9N2Na3O11S3 Formula weight: 570.41 CAS Number: 23647-14-5 Harmonized Tariff Code:  2927.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Sodium Hydrogen Carbonate, ACS, 99.7-100.3%

    Alfa Aesar

    Synonym(s): Sodium bicarbonate CAS Number: 144-55-8 MDL: MFCD00003528 EINECS: 205-633-8 Formula: NaHCO3 Formula Weight: 84.01 Form: Granular Density: 2.159 Refractive Index: 1.500 Solubility: Soluble in water. Insoluble in…

  • Sulfanilamide, 98%

    Alfa Aesar

    Synonym(s): 4-Aminobenzenesulfonamide Formula: C6H8N2O2S Formula weight: 172.21 Purity: 98% CAS Number: 63-74-1 Harmonized Tariff Code:  2935.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Strontium, distilled dendritic pieces, 99.8% (metals basis)

    Alfa Aesar

    Purity: 99.8% (metals basis) CAS Number: 7440-24-6 UN Number: UN3208 Hazard Class: 4.3 Packing Group: II Harmonized Tariff Code:  2805.19 Hazard Statements: H261 In contact with water releases flammable gas. Precautionary Statements: …

  • Sodium sulfide, anhydrous

    Alfa Aesar

    Formula: Na2S Formula weight: 78.04 CAS Number: 1313-82-2 UN Number: UN1385 Hazard Class: 4.2 Packing Group: II Harmonized Tariff Code:  2830.10 Hazard Statements: H311-H314-H302 Toxic in contact with skin. Causes severe skin burns and eye damage. Harmful if swallowed. …

  • Sucrose, 99%

    Alfa Aesar

    Synonym(s): D-(+)-Saccharose Formula: C12H22O11 Formula weight: 342.30 Purity: 99% CAS Number: 57-50-1 Harmonized Tariff Code:  1701.99

  • Salicylaldehyde, 99%

    Alfa Aesar

    Synonym(s): 2-Hydroxybenzaldehyde Formula: C7H6O2 Formula weight: 122.12 Purity: 99% CAS Number: 90-02-8 Harmonized Tariff Code:  2912.49 Hazard Statements: H302-H315-H319-H335-H227 Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause…

  • Sodium sulfide hydrate, tech.

    Alfa Aesar

    Formula: Na2S xH2O Formula weight: 78.04(anhy) CAS Number: 27610-45-3 UN Number: UN1849 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2830.10 Hazard Statements: H301-H310-H314-H318 Toxic if swallowed. Fatal in contact with skin. Causes severe skin burns and eye…

  • Silver sulfate, ACS, 98%

    Alfa Aesar

    Formula: Ag2O4S Formula weight: 311.80 Purity: 98% CAS Number: 10294-26-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2843.29 Hazard Statements: H318 Causes serious eye damage. Precautionary Statements: P280-P305+P351+P338-P310 Wear…

  • 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 pyrophosphate, 98%

    Alfa Aesar

    Synonym(s): Sodium phosphate (pyro), Tetrasodium pyrophosphate Formula: Na4O7P2 Formula weight: 265.90 Purity: 98% CAS Number: 7722-88-5 Harmonized Tariff Code:  2835.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Sodium deoxycholate monohydrate, 98%

    Alfa Aesar

    Synonym(s): Deoxycholic acid sodium salt monohydrate Formula: C24H39NaO4 H2O Formula weight: 432.58 (414.58anhy) Purity: 98% CAS Number: 145224-92-6 Harmonized Tariff Code:  2918.30 Hazard Statements: H302-H335 Harmful if swallowed. May cause respiratory irritation. …

  • Sodium hydroxide, pellets, 98%

    Alfa Aesar

    Formula: NaOH Formula weight: 40.00 Purity: 98% CAS Number: 1310-73-2 UN Number: UN1823 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2815.11 Risk Phrases: 35 Causes severe burns. Safety Phrases: 26-37/39-45 In case of contact with eyes, rinse immediately…

  • Sodium carbonate, 0.05N Standardized Solution

    Alfa Aesar

    Formula: Na2CO3 Formula weight: 105.99 CAS Number: 497-19-8 Harmonized Tariff Code:  3822.00

  • 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 tetraborate decahydrate, ACS, 99.5-105.0%

    Alfa Aesar

    Synonym(s): Borax, Sodium borate (tetra) decahydrate Formula: B4Na2O7 10H2O Formula weight: 381.37 (201.22anhy) Purity: 99.5-105.0% CAS Number: 1303-96-4 Harmonized Tariff Code:  2840.19 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary…

  • Sodium azide, 99%

    Alfa Aesar

    Formula: N3Na Formula weight: 65.01 Purity: 99% CAS Number: 26628-22-8 UN Number: UN1687 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2850.00 Hazard Statements: H300 Fatal if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash…

  • Sodium 1-decanesulfonate, 99% (dry wt.), water <1.5%

    Alfa Aesar

    Synonym(s): 1-Decanesulfonic acid sodium salt Formula: CH3(CH2)9SO3Na Formula weight: 244.33 Purity: 99% (dry wt.), water CAS Number: 13419-61-9 Harmonized Tariff Code:  2904.10

  • Sodium hydrogen selenite, 98%

    Alfa Aesar

    Formula: HNaO3Se Formula weight: 150.96 Purity: 98% CAS Number: 7782-82-3 UN Number: UN2630 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2842.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if inhaled. May cause damage to organs through…

  • Sodium pyrophosphate, anhydrous, tech.

    Alfa Aesar

    Synonym(s): Sodium phosphate (pyro), Tetrasodium pyrophosphate Formula: Na4O7P2 Formula weight: 265.90 CAS Number: 7722-88-5 Harmonized Tariff Code:  2835.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Sodium hydroxide, 2.0N Standardized Solution

    Alfa Aesar

    Formula: NaOH Formula weight: 40.00 CAS Number: 1310-73-2 UN Number: UN1824 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2815.12 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. Precautionary Statements: …

  • Sodium thiosulfate, 0.1N Standardized Solution

    Alfa Aesar

    Formula: Na2O3S2 Formula weight: 158.10 CAS Number: 7772-98-7 Harmonized Tariff Code:  2832.30

  • Silver Nitrate, ACS, 99.9+% (metals basis)

    Alfa Aesar

    CAS Number: 7761-88-8 MDL: MFCD00003414 EINECS: 231-853-9 Formula: AgNO3 Formula Weight: 169.87 Form: Crystalline Melting Point: 212° Flash Point: None Density: 4.352 Sensitivity: Light Sensitive Solubility: …

  • Silicone oil, high temperature, usable temperature range: 25 to 250°C (open…

    Alfa Aesar

    Synonym(s): Poly(dimethylsiloxane-co-diphenylsiloxane), Dimethyl diphenyl polysiloxane Formula: [Si(CH3)2O]x[Si(C6H5)2O] k CAS Number: 68083-14-7 Harmonized Tariff Code: 

  • Sodium 1-heptanesulfonate monohydrate, 99%

    Alfa Aesar

    Synonym(s): 1-Heptanesulfonic acid sodium salt monohydrate Formula: C7H15NaO3S H2O Formula weight: 220.26 (202.24anhy) Purity: 99% CAS Number: 207300-90-1 Harmonized Tariff Code:  2904.10

  • Sucrose, Ultrapure, 99%

    Alfa Aesar

    Synonym(s): D-(+)-Saccharose CAS Number: 57-50-1 MDL: MFCD00006626 EINECS: 200-334-94 Formula: C12H22O11 Formula Weight: 342.30 Form: Crystalline Melting Point: 185-187° Density: 1.58 Risk &…

  • Sodium selenate decahydrate, 99.9% (metals basis)

    Alfa Aesar

    Formula: Na2SeO4 10H2O Formula weight: 369.09 (188.94anhy) Purity: 99.9% (metals basis) CAS Number: 10102-23-5 UN Number: UN2630 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2842.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if inhaled. May…

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