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339741

硫酸

99.999%

Sulfuric acid

别名:

油, 硫酸

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关于此项目

线性分子式:
H2SO4
化学文摘社编号:
分子量:
98.08
UNSPSC Code:
12352301
NACRES:
NA.22
PubChem Substance ID:
EC Number:
231-639-5
Beilstein/REAXYS Number:
2037554
MDL number:
Assay:
99.999%
Form:
viscous liquid
价格与库存信息目前不能提供
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agency

suitable for SM 5210

Quality Segment

vapor density

<0.3 (25 °C, vs air)

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H2SO4

assay

99.999%

form

viscous liquid

color

clear

pH

1.2 (5 g/L)

bp

~290 °C (lit.)

solubility

water and organic: soluble

density

1.840 g/mL at 25 °C (lit.)

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

General description

硫酸是一种无机强酸,在有机合成中常用作反应剂、催化剂和溶剂。还可发挥脱水、磺化和硝化作用。

Application

硫酸可用作:
  • 醋酸和棕榈酸酯化反应的催化剂。
  • 硫酸在通过高锝酸盐和硫化氢反应合成二硫化锝的过程中被用作溶剂。
  • 硫酸在化学工业中被用作脱水剂、催化剂和活性反应物。
  • 制备硅硫酸复合材料,这种材料用作有机合成的催化剂。

Analysis Note

纯度基于痕量金属


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

存储类别

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Questions

1–5 of 5 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?

  3. What is the molarity or normality for Product 339741?

    1 answer
    1. The molarity of Product 339741 is 18.74 M, which means the normality is 37.4 since it is a diprotic acid.

      Helpful?

  4. What is the molarity of lot MKCS5290 for product 339741?

    1 answer
    1. The molarity of lot MKCS5290 for product 339741 is 18.76M.

      Helpful?

  5. what mineral is used to make sulfonic acid

    1 answer
    1. Product number 339741 represents sulfuric acid. The only 'mineral' present is sulfur. Any compounds used in the production or purification of this product would be considered proprietary. To address the question in reference to 'Sulfonic acid', this is a functional group and does not occur naturally. Therefore, no additional information can be provided.

      Helpful?

Reviews

1–2 of 2 Reviews  

Active Filters

    • Review 1
    • Votes 8
    5 out of 5 stars.

    Concerntrated Sulfuric Acid

    Item arrived within the expected time and specs were as described by company

    Helpful?

    • Review 1
    • Votes 3
    2 out of 5 stars.

    Bottle incompatible with material

    This bottle's materials of constructions (the cap? the liner? not sure) slowly generate black particulates in the acid, making it unsuitable for e.g. chromatographic applications. The product needs to be in a chemically compatible container.

    Helpful?

    1. Response from Merck KGaA:

      Please contact Technical Service regarding this issue. This sulfuric acid product is packaged in a clear glass bottle with a PTFE lined cap. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.