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258105

Sigma-Aldrich

Ácido sulfúrico

Sulfuric acid
1 of 2 reviewers received a sample product or took part in a promotion

ACS reagent, 95.0-98.0%

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Selecione um tamanho

500 ML
R$ 177,00
100 ML
R$ 258,00
500 ML
R$ 267,00
1 L
R$ 292,00
2.5 L
R$ 675,00
4 X 100 ML
R$ 707,00
2.5 L
R$ 874,00
6 X 500 ML
R$ 1.676,00
6 X 500 ML
R$ 2.455,00

R$ 177,00


Previsão de entrega em19 de fevereiro de 2025


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Selecione um tamanho

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500 ML
R$ 177,00
100 ML
R$ 258,00
500 ML
R$ 267,00
1 L
R$ 292,00
2.5 L
R$ 675,00
4 X 100 ML
R$ 707,00
2.5 L
R$ 874,00
6 X 500 ML
R$ 1.676,00
6 X 500 ML
R$ 2.455,00

About This Item

Fórmula linear:
H2SO4
Número CAS:
Peso molecular:
98.08
Beilstein:
2037554
Número CE:
Número MDL:
Código UNSPSC:
12352106
ID de substância PubChem:
NACRES:
NA.21

R$ 177,00


Previsão de entrega em19 de fevereiro de 2025


Solicite uma grande encomenda

grau

ACS reagent

Nível de qualidade

Agency

suitable for EPA 1613
suitable for SM 4500 - NH3
suitable for SM 5210

densidade de vapor

<0.3 (25 °C, vs air)

pressão de vapor

1 mmHg ( 146 °C)

descrição

Free from suspended or insoluble matter
Nominally 95-98% H2SO4

Ensaio

95.0-98.0%

Formulário

liquid

resíduo de ignição

≤5 ppm

cor

APHA: ≤10

pH

1.2 (5 g/L)

p.e.

~290 °C (lit.)

densidade

1.840 g/mL at 25 °C (lit.)

traços de ânion

MnO4- reducers: ≤2 ppm
chloride (Cl-): ≤0.2 ppm
nitrate (NO3-): ≤0.5 ppm

traços de cátion

As: ≤0.01 ppm
Fe: ≤0.2 ppm
Hg: ≤5 ppb
NH4+: ≤2 ppm
heavy metals (as Pb): ≤1 ppm

cadeia de caracteres SMILES

OS(O)(=O)=O

InChI

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

chave InChI

QAOWNCQODCNURD-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Aplicação

O ácido sulfúrico pode ser usado como catalisador:
  • Na hidrólise de sais de nitroalcanos primários ou secundários em aldeídos ou cetonas.
  • Na hidrólise seletiva de nitrilas a amidas.
  • Sintetizar amidas de t-alquilcarbinaminas por meio da reação de Ritter entre nitrilas e alcenos.
  • Para preparar 3,4-dialquil-2(5H)-furanonas por carbonilação de αβaldeídos insaturados.
  • Na nitração de carbociclos aromáticos e compostos heteroaromáticos.
  • Na síntese de cetona Friedel-Craft usando anidridos via reação de α-amidoalquilação.

O H2SO4 também pode ser usado nas seguintes reações:
  • Reações de adição de′Michaels
  • Reações de substituição eletrofílica
  • Esterificação de ácidos aromáticos altamente impedidos
  • Reação de condensação de Aldol
  • Rearranjo de Beckmann
  • Reação de Hofmann-Loffler-Freytag
  • Isomerização
  • Desidrogenação
  • Sulfonação

Outras notas

As especificações da ACS são iguais à do produto 320501
4 l e 4×4 l são envasados em frascos de polietileno
Números de estoque SKU com -PC são embalados em frascos de vidro revestidos de PVC.

Pictogramas

Corrosion

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

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

Código de classe de armazenamento

8B - Non-combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Certificados de análise (COA)

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Journal of the American Chemical Society, 84(19), 3618-3622 (1962)
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Conteúdo relacionado

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

1–9 of 9 Questions  
  1. Is the range of concentration listed have to do with volume or will an exact percentage be available on the bottle when received for the purposes of further dilution.

    1 answer
    1. The specification for this product (95.0 to 98.0 percent) is for the weight percent of the sulfuric acid; the remaining 2 to 5 percent by weight is water. The lot-specific weight percent is reported as the Purity by Sodium Hydroxide (NaOH) titration on the certificate of analysis for each lot. The result is not printed on the bottle. Practically speaking, whether the percentage is 95.0 percent or 98.0 percent or somewhere in between, the material would be handled the same way.

      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?

  3. 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?

  4. Difference between 258105-500ML, and 258105-500ML-PC, Mainly the PC part of the partnumber.

    1 answer
    1. Product 258105-500ML is packaged in a poly bottle, The package sizes listing the -PC suffix, including 258105-500ML-PC, are packaged in PVC-coated glass bottles.

      Helpful?

  5. What is Sulfuric acid, Product 258105, dissolved in?

    1 answer
    1. This material is not dissolved in anything.  Rather it is pure sulfuric acid, which is a liquid at room temperature.

      Helpful?

  6. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  7. How was the concentration of Sulfuric acid, Product 258105, calculated?

    1 answer
    1. The molarity is calculated using the following equation:molarity=[(1000 X Density)/molecular weight] X (percent purity/100).

      Helpful?

  8. What is the concentration of Sulfuric acid, Product 258105, in moles per liter (M)?

    1 answer
    1. This material has a calculated, theoretical concentration of 18 M.

      Helpful?

  9. How is Sulfuric acid, Product 258105, to be stored?

    1 answer
    1. This material is a room temperature storage item.

      Helpful?

Reviews

1 of 2 reviewers received a sample product or took part in a promotion

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