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Merck

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1.00748

Sulfuric acid

98%, for the determination of nitrogen

Sinonimo/i:

Acido solforico

Autenticati per visualizzare i prezzi organizzativi e contrattuali.

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Voi/SKUDisponibilitàPrezzo
500 mL
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CHF 97.70
2.5 L
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CHF 324.00
25 L
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CHF 1200.00

Informazioni su questo articolo

Formula condensata:
H2SO4
Numero CAS:
Peso molecolare:
98.08
UNSPSC Code:
12352301
EC Index Number:
231-639-5
NACRES:
NA.21
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
≥97.5% (alkalimetric)
Form:
liquid

CHF 97.70


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Packaging: Glass bottle

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Nome del prodotto

Acido solforico al 98%, for the determination of nitrogen

vapor density

<0.3 (25 °C, vs air)

Quality Segment

vapor pressure

0.0001 hPa ( 20 °C), 1 mmHg ( 146 °C)

assay

≥97.5% (alkalimetric)

form

liquid

ign. residue

≤2 ppm

pH

0.3 (25 °C, 49 g/L in H2O)

bp

~290 °C (lit.)

mp

-20 °C

solubility

water: soluble at 20 °C

density

1.840 g/mL at 25 °C (lit.)

cation traces

N: ≤1 ppm

storage temp.

no temp limit

SMILES string

OS(O)(=O)=O

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

Application

L′acido solforico al 98% può essere impiegato nel metodo Kjeldahl per la determinazione dell′azoto.

Analysis Note

Tenore (alcalimetria): ≥ 97,5 %
Azoto totale (N): ≤ 1 ppm
Residuo alla calcinazione: ≤ 2 ppm
Data di scadenza: vedere etichetta prodotto


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Pittogrammi

Corrosion

Parola di avvertenza

Danger

Codici di pericolo

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Classe di stoccaggio

8B - Non-combustible corrosive hazardous materials

Che succede?

WGK 1

Punto di infiammabilità (°F)

Not applicable

Punto di infiammabilità (°C)

Not applicable



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Certificati d'analisi (COA)

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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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  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

      Helpful?

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