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1.00748

Sulfuric acid

98%, for the determination of nitrogen

Synonyme(s) :

Acide sulfurique

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ConditionnementRéférenceDisponibilitéPrix
500 mL
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96,50 €
2.5 L
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321,00 €
25 L
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1 190,00 €

A propos de cet article

Formule linéaire :
H2SO4
Numéro CAS:
Poids moléculaire :
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

96,50 €


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Packaging: Glass bottle

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Nom du produit

Acide sulfurique (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

Sulfuric acid 98% can be used in the Kjeldahl method for the determination of nitrogen.

Analysis Note

Assay (alkalimetric): ≥ 97.5 %
Total nitrogen (N): ≤ 1 ppm
Residue on ignition: ≤ 2 ppm
Date of expiry: see product label

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Cet article
1.081311.007291.09286
assay

≥97.5% (alkalimetric)

assay

95.85-96.15% (alkalimetric)

assay

90.0-91.0% (acidimetric)

assay

-

Quality Level

300

Quality Level

300

Quality Level

300

Quality Level

300

form

liquid

form

liquid

form

liquid

form

liquid

storage temp.

no temp limit

storage temp.

no temp limit

storage temp.

no temp limit

storage temp.

15-25°C

pH

0.3 (25 °C, 49 g/L in H2O)

pH

0.3 (25 °C, 49 g/L in H2O)

pH

-

pH

<1 (20 °C in H2O, strongly acid)

solubility

water: soluble at 20 °C

solubility

water: soluble at 20 °C

solubility

-

solubility

-


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

Classe de stockage

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificats d'analyse (COA)

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Numéro d'article de commerce international

RéférenceGTIN
100748250004022536010045
100748050004022536010021
100748902504022536555515

Questions

1–2 sur 2 questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 réponse
    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

      Utile ?

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

    1 réponse
    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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