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A4915

Sigma-Aldrich

Sulfato de amonio

ACS reagent, ≥99.0%

Sinónimos:

Mascagnita

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About This Item

Fórmula lineal:
(NH4)2SO4
Número de CAS:
7783-20-2
Peso molecular:
132.14
Número CE:
231-984-1
Número MDL:
MFCD00003391
Código UNSPSC:
12352300
eCl@ss:
38030408
ID de la sustancia en PubChem:
329770862
NACRES:
NA.21
Ensayo:
≥99.0%
grado:
ACS reagent
Formulario:
powder or crystals
solubilidad:
water: soluble 132 g/L at 20 °C
En este momento no podemos mostrarle ni los precios ni la disponibilidad

grado

ACS reagent

Nivel de calidad

200

Ensayo

≥99.0%

Formulario

powder or crystals

impurezas

≤0.005% Insoluble matter

residuo de ign.

≤0.005%

pH

5.0-6.0 (25 °C, 5%)

mp

>280 °C (dec.) (lit.)

solubilidad

water: soluble 132 g/L at 20 °C

densidad

1.77 g/mL at 25 °C (lit.)

trazas de anión

chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.001%
phosphate (PO43-): ≤5 ppm

trazas de catión

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

temp. de almacenamiento

room temp

cadena SMILES

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

InChI

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

Clave InChI

BFNBIHQBYMNNAN-UHFFFAOYSA-N

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Descripción general

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

Aplicación

Ammonium sulfate was used in methyl cellulose precipitable tannin assay to evaluate wine tannin in finished wine samples.[4] It was also 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]

Código de clase de almacenamiento

13 - Non Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
0000418458
0000418456
0000418458
0000418456
BCCM8001

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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)
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)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
Olena P Ishchuk et al.
Antibiotics (Basel, Switzerland), 9(1) (2020-01-08)
The opportunistic human fungal pathogen Candida albicans relies on cell morphological transitions to develop biofilm and invade the host. In the current study, we developed new regulatory molecules, which inhibit the morphological transition of C. albicans from yeast-form cells to
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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