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 Metabisulfite, Anhydrous, Granular, Reagent, ACS, 2.5kg, CAS# 7681-57-4
    Manufacturer: Spectrum Chemical
    Sodium Metabisulfite, Anhydrous, Granular, Reagent, ACS, also known as disodium or metabisulfite, is typically used as an antioxidant, disinfectant or preservative agent. 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.

    (4 per CS )
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    was $1,389.75 Special Price $1,028.03
  2. Lithium Nitrate, Crystal, Reagent, 125g, CAS# 7790-69-4
    Manufacturer: Spectrum Chemical
    Lithium Nitrate, Crystal, Reagent is the lithium salt of nitric acid and an inorganic compound. Denser than water, its obtained from the reaction of lithium carbonate with nitric acid, it is used for giving fireworks and flares their red color. It is also employed in labs to bind to a trihydrate ion to test bifurcated hydrogen bonds within crystal structures of molecules. An effective oxidizing agent, it is used in submarines and spacecraft to absorb carbon dioxide. Its reagent grade means this is the highest quality commercially available for this chemical and that the American Chemical Society has not officially set any specifications for this material.

    (1 per EA )
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    was $187.25 Special Price $112.17
  3. Sodium Nitrite, Crystal, Reagent, ACS, 25g, CAS# 7632-00-0
    Manufacturer: Spectrum Chemical
    Sodium Nitrite, Crystal, Reagent, ACS is a white to yellowish inorganic compound that is soluble in water and is hygroscopic. It is commonly used as a reagent in the industrial production of organonitrogen compounds and is an effective corrosion inhibitor. 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 $117.70 Special Price $69.65
  4. Cupric Chloride, Dihydrate, Crystal, Purified, 125g, CAS# 10125-13-0
    Manufacturer: Spectrum Chemical
    Cupric Chloride, Dihydrate, Crystal, Purified is also known as copper(II) chloride and is primarily used as a co-catalyst with palladium(II) chloride in the Wacker process. The Purified Grade describes chemicals of good quality where there are no official standards and is normally limited to inorganic chemicals.

    (1 per EA )
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    was $133.75 Special Price $98.93
  5. Sodium Tartrate, Dihydrate, Crystal, Reagent, ACS, 125g, CAS# 6106-24-7
    Manufacturer: Spectrum Chemical
    Sodium Tartrate, Dihydrate, Crystal, Reagent, ACS has a crystal structure that is able to capture a very precise amount of water and is used in the Karl Fischer moisture determination titration technique. As an ACS grade reagent, Spectrum Chemical manufactured compound is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

    (1 per EA)
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    was $128.05 Special Price $75.77
  6. Potassium Phosphate Monobasic, Crystal, Reagent, ACS, 2.5kg, CAS# 7778-77-0
    Manufacturer: Spectrum Chemical
    Potassium Phosphate Monobasic, Crystal, Reagent, ACS is a soluble salt that is commonly used as a buffering agent. As an ACS grade Reagent, Spectrum Chemical manufactured potassium phosphate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (1 per EA )
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    was $630.30 Special Price $466.25
  7. Potassium Acetate, Crystalline Powder, USP, 2.5kg, CAS# 127-08-2
    Manufacturer: Spectrum Chemical
    Potassium Acetate, Crystalline Powder, USP. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (4 per CS )
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    was $3,565.65 Special Price $3,165.12
  8. Gadolinium Oxide, 25g, CAS# 12064-62-9
    Manufacturer: Spectrum Chemical
    Gadolinium Oxide, also known as gadolinium sesquioxide or gadolinium trioxide, is an inorganic compound that is an available form of the rare earth element gadolinium. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    $151.00
  9. Sodium Cyanide, Reagent, ACS, 2.5kg, CAS# 143-33-9
    Manufacturer: Spectrum Chemical
    Sodium Cyanide, Reagent, ACS is a solid compound that is inorganic, water-soluble and white. A highly toxic salt, it is mainly used in gold mining because cyanide has a high affinity and reactivity with metals. As an ACS grade Reagent, Spectrum Chemical manufactured compound is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

    (4 per CS )
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    $4,193.90
  10. Sodium Citrate, Anhydrous, Powder, FCC, 45kg, CAS# 68-04-2
    Manufacturer: Spectrum Chemical
    Sodium Citrate, Anhydrous, Powder, FCC is used as a flavorant and preservative. 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 )
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    $2,130.10
  11. Calcium Phosphate, Monobasic, Monohydrate, Powder, FCC, 12kg, CAS# 10031-30-8
    Manufacturer: Spectrum Chemical
    Calcium Phosphate, Monobasic, Monohydrate, Powder, FCC is used in the food industry as a leavening agent. 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 (FCC) 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 $1,283.10 Special Price $1,138.97
  12. Potassium Acid Tartrate, Powder, FCC, 500g, 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 )
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    was $158.15 Special Price $116.99
  13. POTASSIUM PHOSPHATE, MONOBASIC, ACS, 500 GRAMS CAS# 7778-77-0
    Manufacturer: Research Products International
    Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 7778-77-0 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $99.32
  14. ThymolpHthalein, ACS, 5G, Amber Glass
    Manufacturer: LabChem
    Shelf Life (months): , , UN Number: (1 per EA)
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    was $47.20 Special Price $36.31
  15. Silver Acetate, Powder, Purified, 25g, CAS# 563-63-3
    Manufacturer: Spectrum Chemical
    Silver Acetate, Powder, Purified is a photosensitive inorganic compound that is white in color. It has often been utilized in several antismoking drugs. The Purified Grade describes chemicals of good quality where there are no official standards and is normally limited to inorganic chemicals.

    (1 per EA )
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    was $405.50 Special Price $359.95
  16. POTASSIUM PHOSPHATE, MONOBASIC, ACS, 1000 GRAMS CAS# 7778-77-0
    Manufacturer: Research Products International
    Dimensions: 7.25 x 4.88 x 4.88, Weight: 2.24, Cas#: 7778-77-0 Research or further manufacturing use only, not for food or drug use. (1 per EA )
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    $209.90
  17. Sodium Iodide, ACS, 500G, Amber Glass
    Manufacturer: LabChem
    Shelf Life (months): , , UN Number: (1 per EA)
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    was $357.20 Special Price $274.80
  18. Magnesium Acetate Tetrahydrate, 500 Grams CAS# 16674-78-5
    Manufacturer: Research Products International
    Mol. Wt:214.45 Common Name: Formula: (CH3COO)2Mg-4H2O Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 16674-78-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $55.65
  19. Sodium Citrate, Dihydrate, ACS, 500G, Poly Bottle
    Manufacturer: LabChem
    Shelf Life (months): , , UN Number: (1 per EA)
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    was $61.00 Special Price $46.93
  20. Silver Lactate, 10g, CAS# 128-00-7
    Manufacturer: Spectrum Chemical
    Silver Lactate (1 per EA )
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    $267.45
  21. Sodium Perborate, Monohydrate, 50kg, CAS# 10332-33-9
    Manufacturer: Spectrum Chemical
    Sodium Perborate, Monohydrate is also known PBS-1, is used as a source of active oxygen in cleaning products and detergents. It has also been used as a tooth bleaching formula. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA)
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    $2,221.95
  22. Sodium Dithionite, purified, 100.00 kg Metal Can
    Manufacturer: Reagents Inc
    Sodium Dithionite, purified, 100.00 kg Metal Can (1 per EA )
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    was $2,200.00 Special Price $1,650.24
  23. Calcium Chloride Anhydrous, 5 Kilograms CAS# 10043-52-4
    Manufacturer: Research Products International
    Mol. Wt:110.98 Common Name: Formula: CaCl2 Dimensions: 10.00 x 7.50 x 10.00, Weight: 12.43, Cas#: 10043-52-4 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $620.00
  24. Sodium Peroxide, Technical, 25g, CAS# 1313-60-6
    Manufacturer: Spectrum Chemical
    Sodium Peroxide, Technical is a solid that comes in the form yellow micro beads. It is an inorganic compound that was historically used to bleach wood pulp in order to prepare it for the use in paper manufacture. Today it is most commonly used for certain specialized lab operations such as mineral extraction form ore. 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 $202.80 Special Price $150.01
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