Accéder au contenu
Merck
Toutes les photos(1)

Principaux documents

Voir toute la documentation

84727

Supelco

Acide sulfurique

for the determination of nitrogen, ≥97.0%

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme

Sélectionner une taille de conditionnement

500 ML
52,70 €
2.5 L
182,00 €

52,70 €

Veuillez contacter notre Service Clients pour connaître la disponibilité de ce produit.
Devis pour commande en gros
Toutes les photos(1)

Sélectionner une taille de conditionnement

Changer de vue
500 ML
52,70 €
2.5 L
182,00 €

About This Item

Formule linéaire :
H2SO4
Numéro CAS:
7664-93-9
Poids moléculaire :
98.08
Beilstein:
2037554
Numéro CE :
231-639-5
Numéro MDL:
MFCD00064589
Code UNSPSC :
12000000
ID de substance PubChem :
329769317
Nomenclature NACRES :
NA.21

52,70 €

Veuillez contacter notre Service Clients pour connaître la disponibilité de ce produit.
Devis pour commande en gros

Qualité

for inorganic trace analysis
for the determination of nitrogen

Niveau de qualité

100

Agence

suitable for SM 4500 - NH3

Densité de vapeur

<0.3 (25 °C, vs air)

Pression de vapeur

1 mmHg ( 146 °C)

Description

Nominally 95-98% H2SO4

Essai

≥97.0%

Forme

liquid

Impuretés

≤0.0005% total nitrogen (N)

Résidus de calcination (900 °C)

≤0.0005%

Couleur

clear

pb

~290 °C (lit.)

Densité

1.840 g/mL at 25 °C (lit.)

Chaîne SMILES 

OS(O)(=O)=O

InChI

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

Clé InChI

QAOWNCQODCNURD-UHFFFAOYSA-N

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Description générale

Sulfuric acid can be produced by dry distillation of iron sulfate heptahydrate, copper sulfate pentahydrate. When these compounds were heated they decompose to form iron and copper oxides eliminating water and sulphur trioxide which combine together to form dilute solution of sulphuric acid. It is suitable as dehydrating agent, catalyst, active reactant in chemical industry. It is also suitable to control pH of saline solutions to strong fuming acids.[1]

Application

Sulfuric acid may be used as digestive reagent in Kjeldahl method to determine nitrogen.[2]

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H290,H314

Classification des risques

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

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
STBL4801
STBL4800
STBL4391
STBL3532
STBL3013

Vous ne trouvez pas la bonne version ?

Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Rechercher un(e) COA

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Navin G. Ashar, Kiran R. Golwalkar
A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents (2013)
Nitrogen determination by a continuous digestion and analysis system.
Ferrari, Andres.
Annals of the New York Academy of Sciences, 87, 792-800 (1960)
Francesco Riccobono et al.
Science (New York, N.Y.), 344(6185), 717-721 (2014-05-17)
Atmospheric new-particle formation affects climate and is one of the least understood atmospheric aerosol processes. The complexity and variability of the atmosphere has hindered elucidation of the fundamental mechanism of new-particle formation from gaseous precursors. We show, in experiments performed
Andreas Recke et al.
Journal of immunology (Baltimore, Md. : 1950), 193(4), 1600-1608 (2014-07-16)
Subepidermal autoimmune blistering dermatoses (AIBD) are prototypic autoantibody-mediated diseases. In epidermolysis bullosa acquisita (EBA), an autoimmune disease with severe and chronic skin blistering, autoantibodies are directed against type VII collagen. IgG is the predominant autoantibody isotype of EBA, the pathogenicity
João Almeida et al.
Nature, 502(7471), 359-363 (2013-10-08)
Nucleation of aerosol particles from trace atmospheric vapours is thought to provide up to half of global cloud condensation nuclei. Aerosols can cause a net cooling of climate by scattering sunlight and by leading to smaller but more numerous cloud
Afficher tous les articles scientifiques apparentés

Contenu apparenté

Environmental Methods Consumables Look Up Tool

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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

      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?

Reviews

No rating value

Active Filters

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique