Lab Procurement Services provides a wide range of grades of salts to meet the requirements of multiple lab and production applications. Please see our specific sections for ACS, High-Purity, and USP-NF-FCC grade products. For other types, including lab and technical grades, please see below, or contact us for assistance. 

Please see our pH Buffers and General Supplies for other essential lab products.

When ordering a salt, check the exact chemical form as well as the name: anhydrous, monohydrate, heptahydrate and other hydrates have different formula weights, so a recipe written for one form needs a recalculation for another. Match the grade to the job, for example ACS or reagent grade for analytical work, USP, NF or FCC for pharmaceutical or food applications, and technical grade for general or industrial use. Note the container (amber glass or poly bottle) for light- or moisture-sensitive salts. Review the SDS before ordering toxic or oxidizing salts such as sodium azide or chromium trioxide.

Salts: common questions

What is a chemical salt?

In chemistry, a salt is an ionic compound made of positively charged ions (cations) and negatively charged ions (anions), such as sodium chloride, potassium iodide or copper sulfate. Salts form when an acid reacts with a base, among other reactions. In the lab they are used to make buffers, standards, culture media and reagent solutions, and as starting materials for synthesis.

What is the difference between anhydrous and hydrated salts?

An anhydrous salt contains no water of crystallization. A hydrated salt, such as copper sulfate pentahydrate or sodium phosphate dibasic heptahydrate, has a fixed number of water molecules built into each formula unit. The water adds to the formula weight, so you need more grams of the hydrate to get the same number of moles. Use the formula weight on the label when preparing solutions.

What do ACS, USP, NF and FCC grades mean?

ACS grade meets the purity specifications of the American Chemical Society's Reagent Chemicals and is commonly used for analytical work. USP and NF grades meet the United States Pharmacopeia and National Formulary standards for pharmaceutical use, and FCC grade meets the Food Chemicals Codex for food use. Technical grade has no such specification and suits general or industrial work where high purity is not required.

Who can buy chemicals such as sodium nitrate from LPS?

Chemicals can be ordered online, but they ship only to business addresses, and a company name is required at checkout. Volume and quote pricing for larger quantities is available through the Contact Us page. Check the SDS and any storage or handling requirements before ordering, so the receiving area is ready for the material.

Salts

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  1. Sodium Bisulfite - ACS, 2.5Kg, CAS#7631-90-5
    Manufacturer: Dawn Scientific
    Sodium Bisulfite - ACS, 2.5Kg, CAS#7631-90-5 (1 per EA )
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    was $99.62 Special Price $97.12
  2. Calcium Nitrate 4-Hydrate ACS, 20.00 K Each
    Manufacturer: Reagents Inc
    Calcium Nitrate 4-Hydrate ACS, 20.00 K Each (1 per EA )
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    was $1,740.00 Special Price $1,304.64
  3. Magnesium Sulfate 7-Hyd ACS, 50.00 lb Drum, Fiber
    Manufacturer: Reagents Inc
    Magnesium Sulfate 7-Hyd ACS, 50.00 lb Drum, Fiber (1 per EA )
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    was $1,080.00 Special Price $810.00
  4. Magnesium Chloride Hexahydrate Lab - Lab, 2.5kg x 4, CAS#7791-18-6, CS4
    Manufacturer: Dawn Scientific
    Magnesium Chloride Hexahydrate Lab - Lab, 2.5kg x 4, CAS#7791-18-6, CS4 (4 per CS )
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    was $349.62 Special Price $340.88
  5. Sodium Acetate Trihydrate Lab - Lab, 2.5kg x 4, CAS#6131-90-4, CS4
    Manufacturer: Dawn Scientific
    Sodium Acetate Trihydrate Lab - Lab, 2.5kg x 4, CAS#6131-90-4, CS4 (4 per CS )
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    was $289.62 Special Price $282.38
  6. Sodium Nitrate Lab - Lab, 2.5kg x 4, CAS#7631-99-4, CS4
    Manufacturer: Dawn Scientific
    Sodium Nitrate Lab - Lab, 2.5kg x 4, CAS#7631-99-4, CS4 (4 per CS )
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    was $499.62 Special Price $487.13
  7. Sodium Nitrite Lab - Lab, 2.5kg x 4, CAS#7632-00-0, CS4
    Manufacturer: Dawn Scientific
    Sodium Nitrite Lab - Lab, 2.5kg x 4, CAS#7632-00-0, CS4 (4 per CS )
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    was $474.62 Special Price $462.76
  8. Sodium Phosphate Monobasic - Reagent, 2.5kg x 4, CAS#7558-80-7, CS4
    Manufacturer: Dawn Scientific
    Sodium Phosphate Monobasic - Reagent, 2.5kg x 4, CAS#7558-80-7, CS4 (4 per CS )
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    was $574.62 Special Price $560.25
  9. Ammonium Acetate ACS - ACS, 2.5kg x 4, CAS#631-61-8, CS4
    Manufacturer: Dawn Scientific
    Ammonium Acetate ACS - ACS, 2.5kg x 4, CAS#631-61-8, CS4 (4 per CS )
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    was $614.62 Special Price $599.26
  10. Ammonium Thiocyanate ACS - ACS, 2.5kg x 4, CAS#1762-95-4, CS4
    Manufacturer: Dawn Scientific
    Ammonium Thiocyanate ACS - ACS, 2.5kg x 4, CAS#1762-95-4, CS4 (4 per CS )
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    was $1,089.62 Special Price $1,062.37
  11. EDTA Disodium Salt Dihydrate ACS - ACS, 2.5kg x 4, CAS#6381-92-6, CS4
    Manufacturer: Dawn Scientific
    EDTA Disodium Salt Dihydrate ACS - ACS, 2.5kg x 4, CAS#6381-92-6, CS4 (4 per CS )
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    was $599.62 Special Price $584.63
  12. Potassium Phthalate - ACS, 2.5kg x 4, CAS#877-24-7, CS4
    Manufacturer: Dawn Scientific
    Potassium Phthalate - ACS, 2.5kg x 4, CAS#877-24-7, CS4 (4 per CS )
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    was $999.62 Special Price $974.62
  13. Sodium Acetate Anhydrous ACS - ACS, 2.5kg x 4, CAS#-647328, CS4
    Manufacturer: Dawn Scientific
    Sodium Acetate Anhydrous ACS - ACS, 2.5kg x 4, CAS#-647328, CS4 (4 per CS )
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    was $439.62 Special Price $428.63
  14. Sodium Citrate Dihydrate ACS - ACS, 2.5kg x 4, CAS#1545801, CS4
    Manufacturer: Dawn Scientific
    Sodium Citrate Dihydrate ACS - ACS, 2.5kg x 4, CAS#1545801, CS4 (4 per CS )
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    was $399.62 Special Price $389.63
  15. Sodium Nitrite ACS - ACS, 2.5kg x 4, CAS#7632-00-0, CS4
    Manufacturer: Dawn Scientific
    Sodium Nitrite ACS - ACS, 2.5kg x 4, CAS#7632-00-0, CS4 (4 per CS )
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    was $499.62 Special Price $487.13
  16. Potassium Permanganate - Lab, 2.5Kg, CAS#7722-64-7
    Manufacturer: Dawn Scientific
    Potassium Permanganate - Lab, 2.5Kg, CAS#7722-64-7 (1 per EA )
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    was $384.62 Special Price $375.01
  17. Sodium periodate meta ACS - 500g, ACS, CAS#7790-28-5
    Manufacturer: Dawn Scientific
    Sodium periodate meta ACS - 500g, ACS, CAS#7790-28-5 (1 per EA )
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    was $474.62 Special Price $462.76
  18. Sodium Carbonate Anhydrous Lab - Lab, 2.5kg x 4, CAS#497-19-8, CS4
    Manufacturer: Dawn Scientific
    Sodium Carbonate Anhydrous Lab - Lab, 2.5kg x 4, CAS#497-19-8, CS4 (4 per CS )
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    was $199.62 Special Price $194.63
  19. Sodium Sulfate, Anhydrous, USP, EP, BP, 2.5kg, CAS# 7757-82-6
    Manufacturer: Spectrum Chemical
    Sodium Sulfate, Anhydrous, USP, EP, BP is a high quality inorganic mineral salt. All Spectrum Chemical USP, EP, BP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA)
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    $317.15
  20. Cadmium Sulfate, Anhydrous, Reagent, ACS, 25g, CAS# 10124-36-4
    Manufacturer: Spectrum Chemical
    Cadmium Sulfate, Anhydrous, Reagent, ACS is often used for the electroplating of cadmium in electronic circuits. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA )
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    was $136.05 Special Price $80.51
  21. Potassium Iodide, Granular, Reagent, ACS, 125g, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, Granular, Reagent, ACS is refered to by the chemical formula KI and is an inorganic compound. Used as a component in film photography before the discovery of silver iodide, it is also used in the electrolyte of dye sensitized solar cells. KI is also used as an emergency blockade of radio-iodine, a common form of radiation poisoning. As an ACS grade Reagent, Spectrum Chemical manufactured potassium iodide is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (6 per CS )
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    $1,084.55
  22. Potassium Phosphate Tribasic, FCC, 12kg, CAS# 7778-53-2
    Manufacturer: Spectrum Chemical
    Potassium Phosphate Tribasic, FCC is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage, nutritional supplement and personal care applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA)
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    was $3,674.45 Special Price $3,261.71
  23. Sodium Bromide, Granular, Reagent, ACS, 12kg, CAS# 7647-15-6
    Manufacturer: Spectrum Chemical
    Sodium Bromide, Granular, Reagent, ACS is used in photography in the preparation of silver bromide emulsion on photographic plates or films. As a Reagent ACS grade reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA)
    Learn More
    was $1,900.00 Special Price $1,405.48
  24. Potassium Acid Tartrate, Powder, FCC, 12kg, CAS# 868-14-4
    Manufacturer: Spectrum Chemical
    Potassium Acid Tartrate, Powder, FCC or potassium bitartrate is called cream of tartar in the food industry. It is useful to stabilize egg whites and whipped cream, prevents sugar syrups from crystallizing and reduces discoloration of boiled vegetables. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

    (1 per EA )
    Learn More
    was $1,697.00 Special Price $1,506.37
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