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. Monobasic Sodium Phosphate, Monohydrate, Granular, USP, BP, 12kg, CAS# 10049-21-5
    Manufacturer: Spectrum Chemical
    Monobasic Sodium Phosphate, Monohydrate, Granular, USP, BP is used as a buffering agent and sequestering agent. All Spectrum Chemical USP, BP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA)
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    $1,173.90
  2. Sodium Hydrosulfite, Reagent, 45kg, CAS# 7775-14-6
    Manufacturer: Spectrum Chemical
    Sodium Hydrosulfite, Reagent is also referred to as sodium dithionite and is a white powder with a slight sulfurous odor. Like most salts it is soluble in water and is used in industry as a reducing agent. In Biology it is used to determine the iron content of soil and to lower the redox potential of physiology experiments. 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.

    (CAS# 7775-14-6, Molecular Formula: Na2S2O4) Sodium Hydrosulfite, Reagent (1 per EA )

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    $1,820.21
  3. Sodium Diethyldithiocarbamate, Trihydrate, Technical, 25g, CAS# 20624-25-3
    Manufacturer: Spectrum Chemical
    Sodium Diethyldithiocarbamate, Trihydrate, Technical (1 per EA )
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    was $122.95 Special Price $90.95
  4. Barium Peroxide, Powder, Reagent, 12kg, CAS# 1304-29-6
    Manufacturer: Spectrum Chemical
    Barium Peroxide, Powder, Reagent is an extremely powerful oxidizing agent, and therefore commonly used in explosives and pyrotechnics. 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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    $2,795.20
  5. Lanthanum Oxide, Reagent, 250g, CAS# 1312-81-8
    Manufacturer: Spectrum Chemical
    Lanthanum Oxide, Reagent has been used in optical materials and to develop ferroelectric materials. 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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    $497.28
  6. Ammonium carbonate, CAS# 506-87-6, 500g
    Manufacturer: Dawn Scientific
    HPLC Buffer Salts (1 per EA )
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    was $124.62 Special Price $121.50
  7. Mercurous Chloride, Powder, Reagent, ACS, 500g, CS6, CAS# 10112-91-1
    Manufacturer: Spectrum Chemical
    Mercurous Chloride, Powder, Reagent, ACS, also known as Mercury(I) chloride, is a component of reference electrodes in electrochemistry. 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 $8,092.20 Special Price $4,847.55
  8. Sodium Tungstate, Dihydrate, CP, 125g, CAS# 10213-10-2
    Manufacturer: Spectrum Chemical
    Sodium Tungstate, Dihydrate, CP is the sodium salt of tungstic acid and used in chemical synthesis as a source of tungsten. CP or Chemically Pure grade products supplied by Spectrum are indicative of a grade suitable for general industrial use.

    (1 per EA )
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    was $161.80 Special Price $119.69
  9. Potassium Iodide, USP, 12kg, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, USP. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA )
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    $6,018.65
  10. Sodium Diethyldithiocarbamate, Trihydrate, Technical, 2.5kg, CAS# 20624-25-3
    Manufacturer: Spectrum Chemical
    Sodium Diethyldithiocarbamate, Trihydrate, Technical (1 per EA )
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    was $1,350.45 Special Price $998.96
  11. Potassium Iodide, ACS, CAS# 7681-11-0
    Manufacturer: 710 Spirits Rocky Mtn Reagents
    Potide (1 per EA)
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    $111.00
  12. Stannous Oxide, Powder, Reagent, 500g, CAS# 21651-19-4
    Manufacturer: Spectrum Chemical
    Stannous Oxide, Powder, Reagent, also known as Tin(II) oxide, is often used as a precursor in manufacturing of tin compounds or salts. 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 $405.55 Special Price $240.00
  13. Potassium Iodide, USP, 500g, CAS# 7681-11-0
    Manufacturer: Spectrum Chemical
    Potassium Iodide, USP. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA)
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    $647.80
  14. Gallium (III) Nitrate, Hydrate, 100g, CAS# 69365-72-6
    Manufacturer: Spectrum Chemical
    Gallium (III) Nitrate, Hydrate is the gallium salt of nitric acid. It is used to treat symptomatic hypercalcemia as well as to synthesize other gallium compounds. 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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    $2,719.55
  15. Barium Sulfate, USP, 500g, CAS# 7727-43-7
    Manufacturer: Spectrum Chemical
    Barium Sulfate, USP. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA)
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    was $248.15 Special Price $183.56
  16. Sodium Phosphate, Tribasic, Anhydrous, FCC, 500g, CAS# 7601-54-9
    Manufacturer: Spectrum Chemical
    Sodium Phosphate, Tribasic, Anhydrous, FCC is used as an acidity regulator (buffering agent), emulsifier, thickening agent, nutrition enlargement agent and sequestrant. 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 $190.45 Special Price $140.88
  17. Potassium Phosphate, Monobasic, Anhydrous, ACS, 125 g, Poly CAS# 7778-77-0
    Manufacturer: 710 Spirits Rocky Mtn Reagents
    Potassium Phosphate, Monobasic, Anhydrous, ACS, 125 g, Poly CAS# 7778-77-0 (1 per EA )
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    $16.45
  18. Ferric Nitrate Nonahydrate Lab - Lab, 500g, CAS#7782-61-8
    Manufacturer: Dawn Scientific
    Ferric Nitrate Nonahydrate Lab - Lab, 500g, CAS#7782-61-8 (1 per EA )
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    was $59.62 Special Price $58.13
  19. Lithium Chloride, 500 Grams CAS# 7447-41-8
    Manufacturer: Research Products International
    Mol. Wt:42.4 Common Name: Formula: LiCl Dimensions: 3.50 x 7.00 x 3.50, Weight: 1.24, Cas#: 7447-41-8 Research or further manufacturing use only, not for food or drug use. (1 per EA)
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    $131.95
  20. Ammonium Sulfate, Granular, Purified, 500g, CAS# 7783-20-2
    Manufacturer: Spectrum Chemical
    Ammonium Sulfate, Granular, Purified is an inorganic salt that is very soluble in water. Most often used as a soil fertilizer to release minute amounts of acid and contribute to the essential nitrogen. It is also used in biochemistry as a precipitant to purify protein. 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 $77.65 Special Price $57.43
  21. Cesium Fluoride, Optical Grade, 5g, CAS# 13400-13-0
    Manufacturer: Spectrum Chemical
    Cesium Fluoride, Optical Grade, also known as Caesium fluoride, is used in organic synthesis as a source of the fluoride anion. Spectrum’s Optical Grade products are suitable for use as a crystal growing feedstock.

    (1 per EA )
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    was $138.50 Special Price $102.45
  22. Sodium Thiosulfate, Anhydrous, Reagent, 2.5kg, CAS# 7772-98-7
    Manufacturer: Spectrum Chemical
    Sodium Thiosulfate, Anhydrous, Reagent, is crystalline compound that is colorless. It is used in gold extraction as a lixiviant, in photographic processing to bind soft metals, so that silver halides dissolve when treated with a thiosulfate solution. It is also used in the medical field as an antidote to cyanide poisoning, as an antifungal agent and as a treatment for ringworm. 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.

    (4 per CS )
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    was $1,947.60 Special Price $1,440.69
  23. Sodium Nitrate, Technical, 2.5 kg, Poly
    Manufacturer: 710 Spirits Rocky Mtn Reagents
    Sodium Nitrate, Technical, 2.5 kg, Poly (1 per EA )
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    $29.55
  24. Calcium Carbonate, Light Powder, USP, 2.5kg, CAS# 471-34-1
    Manufacturer: Spectrum Chemical
    Calcium Carbonate, Light Powder, USP is a buffering agent excipient. All Spectrum Chemical USP grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP). (1 per EA)
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    was $541.60 Special Price $480.76
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