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901874

Sigma-Aldrich

Solfato d′ammonio

anhydrous, Redi-Dri, ReagentPlus®, ≥99.0%

Sinonimo/i:

Mascagnite

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About This Item

Formula condensata:
(NH4)2SO4
Numero CAS:
Peso molecolare:
132.14
Numero MDL:
Codice UNSPSC:
12352116
NACRES:
NA.21
Saggio:
≥99.0%
Grado:
anhydrous
Stato:
powder
Solubilità:
water: soluble 132 g/L at 20 °C

Grado

anhydrous

Livello qualitativo

Nome Commerciale

ReagentPlus®
Redi-Dri

Saggio

≥99.0%

Stato

powder

pH

5-6 (25 °C, 132 g/L)

Punto di fusione

>280 °C (dec.) (lit.)

Solubilità

water: soluble 132 g/L at 20 °C

Densità

1.77 g/mL at 25 °C (lit.)

Cationi in tracce

Fe: ≤10 ppm
Pb: ≤3 ppm
Se: ≤5 ppm

Stringa SMILE

N.N.OS(O)(=O)=O

InChI

1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
BFNBIHQBYMNNAN-UHFFFAOYSA-N

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Descrizione generale

Ammonium sulfate is an ammonium salt commonly used as fertilizer. It can be synthesized by neutralizing sulfuric acid with ammonia.[1] It is reported to enhance the phytotoxicity of several herbicides like glyphosates.[2] It is formed as a co-product during the manufacture of caprolactam, a precursor of nylon.[3]

Redi-Dri technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri saves you time, energy and money by keeping your salts usable for longer!

Applicazioni

Ammonium sulfate may be used in methyl cellulose precipitable tannin assay to examine wine tannin in finished wine samples.[4] It may also be used in making externally mixed aerosols for analyzing the 1 × 3 tandem differential mobility analyzer (1 × 3-TDMA), which is mainly employed for determining the irreversibility of the hygroscopic growth factor of aerosol particles.[5]

Caratteristiche e vantaggi

  • Increased efficiency – Eliminate time and effort of loosening hardened powders
  • Safety –Avoid risks of using tools of force to break up clumps
  • Economy –Faster preparation and solvation increase productivity and reduce costs
  • Assured quality –Excellent, expert-tested quality with no anti-caking agents
  • Flexible volumes –Available from research amounts to scale-up quantities

Note legali

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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The 1-by-3 tandem differential mobility analyzer for measurement of the irreversibility of the hygroscopic growth factor.
Rosenoern T, et al.
Aerosol Science and Technology, 43(7), 641-652 (2009)
Influence of yeast strain on Shiraz wine quality indicators.
Holt H, et al.
International Journal of Food Microbiology, 165(3), 302-311 (2013)
Industrial catalytic aspects of the synthesis of monomers for nylon production.
Bellussi G and Perego C.
CATTECH, 4(1), 4-16 (2000)
Substitutes for Ammonium Sulfate as Additives with Glyphosate and Glufosinate.
Pratt D, et al.
Weed Technology, 17(3), 576-581 (2003)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)

Articoli

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Questions

1–3 of 3 Questions  
  1. How long will material remain free-flowing after it is opened?

    1 answer
    1. While the exact amount of time your material will remain free-flowing can vary, this largely depends on the ambient storage conditions and how many times it is opened.

      Helpful?

  2. Are there any special storage conditions that must be maintained?

    1 answer
    1. No, Redi-Dri™ products can be stored under the same conditions as the equivalent non-Redi-Dri™ products.

      Helpful?

  3. How does Redi-Dri™ help keep salts and buffers free-flowing?

    1 answer
    1. Redi-Dri™ products are specially handled and the bottle is specially designed to ensure that the product will remain dry without adding impurities or additives to the product. Ensuring that you receive the highest quality material that is easy to handle.

      Helpful?

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