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. Magnesium Acetate, Tetrahydrate, Crystal, Reagent, ACS, 12kg, CAS# 16674-78-5
    Manufacturer: Spectrum Chemical
    Magnesium Acetate, Tetrahydrate, Crystal, Reagent, ACS is the magnesium salt of acetic acid. As a Reagent 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 $2,115.10 Special Price $1,583.79
  2. Magnesium Acetate, Tetrahydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 16674-78-5
    Manufacturer: Spectrum Chemical
    Magnesium Acetate, Tetrahydrate, Crystal, Reagent, ACS is the magnesium salt of acetic acid. As a Reagent 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 $914.85 Special Price $685.03
  3. Magnesium Chloride, Hexahydrate, Crystal, Reagent, ACS, 2.5kg, CS4, CAS# 7791-18-6
    Manufacturer: Spectrum Chemical
    Magnesium Chloride, Hexahydrate, Crystal, Reagent, ACS has a wide range of uses, notably the production of magnesium metal, it is also used for dust control, ice control and road stabilization. As in this case, hydrated magnesium chloride can be extracted from brine or sea water. As an ACS grade Reagent, Spectrum Chemical manufactured magnesium chloride is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and purity.

    (4 per CS )
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    was $2,292.20 Special Price $1,716.40
  4. Magnesium Nitrate, Hexahydrate, Crystal, Reagent, ACS, 500g, CS6, CAS# 13446-18-9
    Manufacturer: Spectrum Chemical
    Magnesium Nitrate, Hexahydrate, Crystal, Reagent, ACS is extremely soluble in water and in ethanol. It is used in fertilizer blends in the hydroponics and greenhouse trade. It also used as a preservative, catalyst in the manufacture of petrochemicals, as a desensitizer for lithographic plates and in pyrotechnics. 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.

    (6 per CS )
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    was $703.30 Special Price $421.30
  5. Magnesium Oxide, Powder, Reagent, ACS, 500g, CS6, CAS# 1309-48-4
    Manufacturer: Spectrum Chemical
    Magnesium Oxide, Powder, Reagent, ACS is a white solid mineral that is found naturally as periclase and is considered a source of magnesium. It is also considered a metastable compound. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (6 per CS )
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    was $4,189.45 Special Price $2,509.64
  6. Magnesium Sulfate, Heptahydrate, Crystal, Reagent, ACS, 12kg, CAS# 10034-99-8
    Manufacturer: Spectrum Chemical
    Magnesium Sulfate, Heptahydrate, Crystal, Reagent, ACS, is primarily intended for use in bottled water products as a flavor enhancer and as a nutrient in salt replacers, carbonated diet soft drinks, sports drinks and fortified water beverages. Magnesium sulphate heptahydrate has a bitter, saline, cooling taste and is also used as a fermentation aid in the production of beer and malt beverages.

    (1 per EA )
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    was $1,331.50 Special Price $997.03
  7. Manganese Acetate, Crystal, Reagent, 500g, CAS# 6156-78-1
    Manufacturer: Spectrum Chemical
    Manganese Acetate, Crystal, Reagent, also known as Manganese diacetate, is used as a catalyst, a desiccant, and as fertilizer. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA)
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    $215.90
  8. Manganese Chloride, Tetrahydrate, Crystal, Reagent, ACS, 12kg, CAS# 13446-34-9
    Manufacturer: Spectrum Chemical
    Manganese Chloride, Tetrahydrate, Crystal, Reagent, ACS is also known as manganous chloride. The main application is use in the production of dry cell batteries and is the precursor to the antiknock compound methylcyclopentadienyl manganese tricarbonyl. 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 $1,761.10 Special Price $1,318.72
  9. Potassium Acetate, Crystal, Reagent, ACS, 12kg, CAS# 127-08-2
    Manufacturer: Spectrum Chemical
    Potassium Acetate, Crystal, Reagent, ACS is used in molecular biology to precipitate dodecyl sulfate (DS) and DS-bound proteins, allowing the removal of proteins from DNA. It is also used as a salt for the ethanol precipitation of DNA. Potassium acetate is also used in mixtures applied for tissue preservation, fixation, and mummification. 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 $1,508.65 Special Price $1,115.99
  10. Potassium Bromide, Crystal, Reagent, ACS, 12kg, CAS# 7758-02-3
    Manufacturer: Spectrum Chemical
    Potassium Bromide, Crystal, Reagent, ACS, is found as a white crystal and is very soluble in water. In infrared spectroscopy, samples are analyzed by grinding with powdered potassium bromide and pressing into a disc. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are 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 $1,288.55 Special Price $953.16
  11. Potassium Dichromate, Crystal, Reagent, ACS, 2.5kg, CAS# 7778-50-9
    Manufacturer: Spectrum Chemical
    Potassium Dichromate, Crystal, Reagent, ACS is an inorganic chemical reagent that is most often used as an oxidizing agent in industrial applications. It is known to be chronically detrimental to health. 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 $1,717.60 Special Price $1,270.56
  12. Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS, 12kg, CAS# 14459-95-1
    Manufacturer: Spectrum Chemical
    Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS is an inorganic compound that is a salt with a light yellow tint. Mainly used as an anti-caking agent in both road and table salt. It has several other niche uses and within the laboratory to determine potassium permanganate concentration levels. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are 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 $3,289.55 Special Price $2,433.36
  13. Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 14459-95-1
    Manufacturer: Spectrum Chemical
    Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS is an inorganic compound that is a salt with a light yellow tint. Mainly used as an anti-caking agent in both road and table salt. It has several other niche uses and within the laboratory to determine potassium permanganate concentration levels. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are 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 $1,843.70 Special Price $1,363.83
  14. Potassium Metabisulfite, Crystal, Reagent, 500g, CAS# 16731-55-8
    Manufacturer: Spectrum Chemical
    Potassium Metabisulfite, Crystal, Reagent is also known as potassium pyrosulfite and is primarily used as a chemical sterilant or antioxidant. It is chemically similar to sodium metabisulfite and considered to be a disulfite. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA )
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    was $259.65 Special Price $153.65
  15. Potassium Nitrate, Crystal, Reagent, ACS, 2.5kg, CAS# 7757-79-1
    Manufacturer: Spectrum Chemical
    Potassium Nitrate, Crystal, Reagent, ACS occurs naturally as the mineral niter. As an ionic salt and natural source of nitrogen, this chemical compound is highly used as a fertilizer and is one of the main components in gunpowder. It is also used in other fields such as in pharmacology, where it is added to toothpaste to help treat sensitive teeth. It can also be used as an electrolyte, as a tree stump removal product and in some culture as a thickening agent in food preparation. As an ACS grade Reagent, Spectrum Chemical manufactured potassium nitrate 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 $786.10 Special Price $581.49
  16. Potassium Nitrate, Crystal, Reagent, ACS, 500g, CAS# 7757-79-1
    Manufacturer: Spectrum Chemical
    Potassium Nitrate, Crystal, Reagent, ACS occurs naturally as the mineral niter. As an ionic salt and natural source of nitrogen, this chemical compound is highly used as a fertilizer and is one of the main components in gunpowder. It is also used in other fields such as in pharmacology, where it is added to toothpaste to help treat sensitive teeth. It can also be used as an electrolyte, as a tree stump removal product and in some culture as a thickening agent in food preparation. As an ACS grade Reagent, Spectrum Chemical manufactured potassium nitrate 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 $249.20 Special Price $147.47
  17. Potassium Metabisulfite, Crystal, NF, 2.5kg, CAS# 16731-55-8
    Manufacturer: Spectrum Chemical
    Potassium Metabisulfite, Crystal, NF. All Spectrum Chemical NF grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    was $867.10 Special Price $641.41
  18. Potassium Persulfate, Crystal, Reagent, 12kg, CAS# 7727-21-1
    Manufacturer: Spectrum Chemical
    Potassium Persulfate, Crystal, Reagent, also known as potassium peroxydisulfate, is a strong oxidant used to initiate polymerizations. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.

    (1 per EA)
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    was $1,771.80 Special Price $1,310.64
  19. Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 6381-59-5
    Manufacturer: Spectrum Chemical
    Potassium Sodium Tartrate, Tetrahydrate, Crystal, Reagent, ACS is a double salt and is deliquescent so the material deteriorates if stored in damp conditions. It has been used medicinally as a laxative. It has also been used in the process of silvering mirrors. It is an ingredient of Fehling's solution and Nylander's test, formerly used in the determination of reducing sugars in solutions. In organic synthesis, it is used in aqueous workups to break up emulsions, particularly for reactions in which an aluminum-based hydride reagent was used. 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 $1,314.20 Special Price $972.15
  20. Potassium Thiocyanate, Crystal, Reagent, ACS, 2.5kg, CAS# 333-20-0
    Manufacturer: Spectrum Chemical
    Potassium Thiocyanate, Crystal, Reagent, ACS, one of the pseudohalides, is an important salt of the thiocyanate anion. Often used in chemical synthesis, it can also be used in theatrical special effects to create a relatively realistic blood effect. As an ACS grade Reagent, Spectrum Chemical manufactured potassium thiocyanate 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 $1,175.05 Special Price $869.21
  21. Sodium Bismuthate, Powder, Reagent, ACS, 25g, CAS# 12232-99-4
    Manufacturer: Spectrum Chemical
    Sodium Bismuthate, Powder, Reagent, ACS, also known as Sodium bismuth oxide, is a sodium salt and considered a strong oxidizer. 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 $226.50 Special Price $134.04
  22. Sodium Citrate, Dihydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 6132-04-3
    Manufacturer: Spectrum Chemical
    Sodium Citrate, Dihydrate, Crystal, Reagent, ACS, a sodium salt of citric acid and sometimes termed "sour salt" due to it's mildly tarty flavor is commonly used as an acidity buffer or regulator and as an anticoagulant. As an anticoagulant, the Sodium Citrate chelates calcium ions in the blood that in turn disrupts the clotting process. As an ACS grade Reagent, Spectrum Chemical manufactured sodium citrate 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 $421.50 Special Price $311.80
  23. Sodium Nitrite, Crystal, Reagent, ACS, 2.5kg, 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 $724.05 Special Price $535.59
  24. Sodium Phosphate, Dibasic, Heptahydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 7782-85-6
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Dibasic, Heptahydrate, Crystal, Reagent, ACS is one of the sodium salts derived from phosphoric acid. It is highly hygroscopic and water soluble. It is used commercially in powered product as an anti-caking agent. In aqueous solution it is basic, with a pH value between 8.0 and 11.0. 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 $612.20 Special Price $452.87
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