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. Ferrous Sulfate, Heptahydrate, Crystal, Reagent, ACS, 125g, CAS# 7782-63-0
    Manufacturer: Spectrum Chemical
    Ferrous Sulfate, Heptahydrate, Crystal, Reagent, ACS 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 $491.65 Special Price $290.95
  2. Ferrous Sulfate, Heptahydrate, Crystal, Reagent, ACS, 500g, CAS# 7782-63-0
    Manufacturer: Spectrum Chemical
    Ferrous Sulfate, Heptahydrate, Crystal, Reagent, ACS 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 $1,295.20 Special Price $766.48
  3. Potassium Bromide, Crystal, Reagent, ACS, 125g, 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.

    (6 per CS )
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    was $833.35 Special Price $493.16
  4. Potassium Ferricyanide, Crystal, Reagent, ACS, 2.5kg, CAS# 13746-66-2
    Manufacturer: Spectrum Chemical
    Potassium Ferricyanide, Crystal, Reagent, ACS is a chemical compound and a bright red salt. It is soluble in water and appears as a yellow-green fluorescence. Potassium ferricyanide is created by passing chlorine through a solution of potassium ferrocyanide. 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 $4,453.00 Special Price $3,294.00
  5. 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.

    (4 per CS )
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    was $3,019.25 Special Price $2,233.41
  6. Potassium Ferrocyanide, Trihydrate, Crystal, Reagent, ACS, 500g, 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.

    (6 per CS )
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    was $2,415.40 Special Price $1,429.39
  7. Potassium Iodide, Crystal, Reagent, ACS, 2.5kg, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, Crystal, Reagent, ACS, is reffered to by the chemical formula KI and is an inorganic compound. Naturally occuring in Kelp, this white salt is one of the most significant iodide compounds. Produced by treating KOH with iodine, this compound has a variety of uses. 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.

    (4 per CS )
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    was $7,370.25 Special Price $5,451.96
  8. Potassium Persulfate, Crystal, Reagent, 2.5kg, 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.

    (4 per CS )
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    was $3,227.90 Special Price $2,387.76
  9. Potassium Sulfate, Crystal, Reagent, ACS, 2.5kg, CAS# 7778-80-5
    Manufacturer: Spectrum Chemical
    Potassium Sulfate, Crystal, Reagent, ACS is also known as sulphate of potash. It is a white crystalline salt that is non-flammable and soluble in water. It is most often used in fertilizers which provides both sulfur and potassium. 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 $2,106.95 Special Price $1,558.56
  10. 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.

    (4 per CS )
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    was $4,253.05 Special Price $3,146.08
  11. Sodium Acetate, Trihydrate, Crystal, Reagent, ACS, 2.5kg, CAS# 6131-90-4
    Manufacturer: Spectrum Chemical
    Sodium Acetate, Trihydrate, Crystal, Reagent, ACS is a colorless salt that has a wide range of uses. In the chemical laboratory it is used as a buffer solution to help keep a near constant pH. As an ACS grade Reagent, Spectrum Chemical manufactured Sodium Acetate is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness.

    (4 per CS )
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    was $1,435.70 Special Price $1,062.03
  12. Sodium Chloride, Crystal, Reagent, ACS, 1kg, CAS# 7647-14-5
    Manufacturer: Spectrum Chemical
    Sodium Chloride, Crystal, Reagent, ACS, or table salt, is a white crystalline solid. In cosmetics and personal care products, Sodium Chloride is used in the formulation of oral hygiene products, shampoos, fragrance, skin, hair, nail, cleansing, suntan, makeup and bath products. This grade is specifically used in thickener applications. 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.

    (6 per CS )
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    was $602.35 Special Price $356.45
  13. Sodium Nitrite, Crystal, Reagent, ACS, 125g, 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.

    (6 per CS )
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    was $645.70 Special Price $382.11
  14. 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.

    (4 per CS )
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    was $2,538.95 Special Price $1,878.12
  15. Strontium Nitrate, Crystal, Reagent, ACS, 2.5kg, CAS# 10042-76-9
    Manufacturer: Spectrum Chemical
    Strontium Nitrate, Crystal, Reagent, ACS is used as an oxidizer and colorant 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.

    (4 per CS )
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    was $3,019.95 Special Price $2,233.93
  16. Silver Chloride, Granular, Reagent, 5g, CAS# 7783-90-6
    Manufacturer: Spectrum Chemical
    Silver Chloride, Granular, Reagent is a chemical compound of silver and chlorine, with a molecular formula AgCl. There are many applications for SILVER CHLORIDE, including those in electrochemistry, infra-red technology, photochromic lenses, photographic paper, as well as bandages. SILVER CHLORIDE, GRANULAR, REAGENT is an analytical reagent used in some laboratory tests to determine the purity of other products and whether they can be graded pure enough for use in cosmetics, personal care, pharmaceutical or food and beverages.

    (1 per EA )
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    $175.20
  17. SODIUM PHOSPHATE DIBASIC HEPTAHYDRATE, ACS GRADE, 5 KILOGRAM CAS# 7782-85-6
    Manufacturer: Research Products International
    Mol. Wt:268.07 Common Name: Formula: Na2HPO4 - 7H2O Dimensions: 10.00 x 11.25 x 10.00, Weight: 12.7, Cas#: 7782-85-6 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $365.50
  18. Barium Nitrate, Crystal, Reagent, ACS, 50kg, CAS# 10022-31-8
    Manufacturer: Spectrum Chemical
    Barium Nitrate, Crystal, Reagent, ACS is a water soluble, white solid and when mixed with aluminum powder, a formula for flash powder, is highly explosive. 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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    $2,726.90
  19. Sodium Sulfite Purified, 50.00 lb Drum, Fiber
    Manufacturer: Reagents Inc
    Sodium Sulfite Purified, 50.00 lb Drum, Fiber (1 per EA )
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    was $381.00 Special Price $286.20
  20. Sodium Thiosulfate, Anhydrous, Technical, 100lb, CAS# 7772-98-7
    Manufacturer: Spectrum Chemical
    Sodium Thiosulfate, Anhydrous, Technical - In analytical chemistry, the most important use comes from the fact that the thiosulfate anion reacts stoichiometrically with iodine in aqueous solution. Commercially used in hand warmers, heating pads and in tanning leather. Technical grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

    (1 per EA )
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    $979.25
  21. Sodium Nitrate Purified, 100.00 lb Drum, Fiber
    Manufacturer: Reagents Inc
    Sodium Nitrate Purified, 100.00 lb Drum, Fiber (1 per EA )
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    was $928.00 Special Price $695.52
  22. Ammonium Sulfate, USP, ACS, Pyrogen Free, bioCERTIFIED(TM)), 5kg, CAS# 7783-20-2
    Manufacturer: Spectrum Chemical
    Ammonium Sulfate, USP, ACS, Pyrogen Free, bioCERTIFIED (TM) is used in one of the most common methods for large and laboratory scale protein purification and fractionation. All Spectrum Chemical USP, ACS Pyrogen Free grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    $260.99
  23. Sodium Phosphate Monobasic, Anhydrous, FCC, 500g, CAS# 7558-80-7
    Manufacturer: Spectrum Chemical
    Sodium Phosphate Monobasic, Anhydrous, FCC is used as a thickening agent and emulsifier in animal feed, toothpaste, and evaporated milk. 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 $160.55 Special Price $120.22
  24. Sodium Chloride, USP, EP, 500g, CAS# 7647-14-5
    Manufacturer: Spectrum Chemical
    Sodium Chloride, USP, EP. All Spectrum Chemical USP, EP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    $106.35
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