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.
258105
硫酸
Sulfuric acid
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ACS reagent, 95.0-98.0%
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About This Item
線性公式:
H2SO4
CAS號碼:
分子量：:
98.08
Beilstein:
2037554
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
PubChem物質ID:
NACRES:
NA.21
等級:
ACS reagent
agency:
suitable for EPA 1613
suitable for SM 4500 - NH3
suitable for SM 5210
suitable for SM 4500 - NH3
suitable for SM 5210
pH值:
1.2 (5 g/L)
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等級
ACS reagent
品質等級
agency
suitable for EPA 1613
suitable for SM 4500 - NH3
suitable for SM 5210
蒸汽密度
<0.3 (25 °C, vs air)
蒸汽壓力
1 mmHg ( 146 °C)
描述
Free from suspended or insoluble matter
Nominally 95-98% H2SO4
化驗
95.0-98.0%
形狀
liquid
燃燒殘留物
≤5 ppm
顏色
APHA: ≤10
pH值
1.2 (5 g/L)
bp
~290 °C (lit.)
密度
1.840 g/mL at 25 °C (lit.)
負離子痕跡
MnO4- reducers: ≤2 ppm
chloride (Cl-): ≤0.2 ppm
nitrate (NO3-): ≤0.5 ppm
正離子痕跡
As: ≤0.01 ppm
Fe: ≤0.2 ppm
Hg: ≤5 ppb
NH4+: ≤2 ppm
heavy metals (as Pb): ≤1 ppm
SMILES 字串
OS(O)(=O)=O
InChI
1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
InChI 密鑰
QAOWNCQODCNURD-UHFFFAOYSA-N
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相關類別
應用
硫酸可作为催化剂：
H2SO4 还可用于以下反应：
- 用于仲硝基烷烃盐到醛或酮的水解。
- 腈到酰胺的选择性水解。
- 通过丁腈与烯烃的 Ritter 反应合成叔烷基碳胺酰胺。
- 通过 α,β-不饱和醛的羰基化制备 3,4-二烷基-2(5H)-呋喃酮。
- 芳香碳环和杂芳香化合物的硝化。
- 以酸酐为原料经 α-氨基烷基化反应合成 Friedel–Craft 酮。
H2SO4 还可用于以下反应：
- Michael 加成反应
- 亲电取代反应
- 高阻碍芳酸酯化反应
- Aldol 缩合反应
- Beckmann 重排
- Hofmann–Loffler–Freytag 反应
- 异构化
- 脱氢
- 磺化
其他說明
ACS规格与产品320501相同
4L和4X4L聚乙烯瓶封装
带-PC的SKU包装规格采用PVC涂层玻璃瓶包装。
訊號詞
Danger
危險聲明
危險分類
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
儲存類別代碼
8B - Non-combustible corrosive hazardous materials
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
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文章
High-Performance Thin-Layer chromatography (HPTLC) quantification of methylglyoxal (MGO) in complex and matrix rich manuka honey offering quick sample preparation, high-matrix tolerance, and high-throughput.
Acid and base chart lists the strength of acids and bases (strongest to weakest) in order. Simple to use laboratory reference chart for scientists, researchers and lab technicians.
酸和鹼圖表依序列出酸和鹼的強度（從最強到最弱）。簡單易用的實驗室參考圖表，適合科學家、研究人員和實驗室技術人員使用。
條款
Derived from procedure SSPHYT02. Includes template updates to current SOP specifications and incorporation of notes into the procedure.
在测定5′-核苷酸酶活性时，本操作流程使用5′-单磷酸腺苷和一种显色试剂生成的标准曲线而对释放的磷的微摩尔数进行测定。
To measure 5′-nucleotidase activity, this procedure uses adenosine 5’-monophosphate and a color reagent to create a standard curve for determining the micromoles of phosphorus liberated.
相關內容
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.
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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.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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Difference between 258105-500ML, and 258105-500ML-PC, Mainly the PC part of the partnumber.
1 answer-
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.
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What is Sulfuric acid, Product 258105, dissolved in?
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This material is not dissolved in anything. Rather it is pure sulfuric acid, which is a liquid at room temperature.
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What is the Department of Transportation shipping information for this product?
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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.
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How was the concentration of Sulfuric acid, Product 258105, calculated?
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The molarity is calculated using the following equation:molarity=[(1000 X Density)/molecular weight] X (percent purity/100).
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What is the concentration of Sulfuric acid, Product 258105, in moles per liter (M)?
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This material has a calculated, theoretical concentration of 18 M.
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How is Sulfuric acid, Product 258105, to be stored?
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This material is a room temperature storage item.
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