1.12080

Sulfuric acid

98%, for analysis EMSURE^®

• 别名: Sulfuric acid
• 线性分子式: H₂SO₄
• CAS号: 7664-93-9
• 分子量: 98.08
• Beilstein: 2037554
• MDL號碼: MFCD00064589
• 分類程式碼代碼: 12352301
• 酶委員會索引編號: 231-639-5
• NACRES: NA.21

属性

• product name: 硫酸, for analysis EMSURE^®
• 蒸汽密度: <0.3 (25 °C, vs air)
• 品質等級: 300
• 蒸汽壓力: 0.0001 hPa ( 20 °C); 1 mmHg ( 146 °C)
• 產品線: EMSURE^®
• 化驗: ≥98% (alkalimetric)
• 形狀: liquid
• 雜質: ≤0.0002% Substances reducing potassium permanganate (as SO₂)
• 燃燒殘留物: ≤0.0005%
• 顏色: APHA: ≤10
• pH值: 0.3 (25 °C, 49 g/L in H₂O)
• bp: ~290 °C (lit.)
• mp: -20 °C
• 密度: 1.840 g/mL at 25 °C (lit.)
• 負離子痕跡: chloride (Cl^-): ≤0.00001%; nitrate (NO₃^-): ≤0.00002%; phosphate (PO₄^3-): ≤0.00005%
• 正離子痕跡: Ag: ≤0.000002%; Al: ≤0.000005%; As: ≤0.000001%; Ba: ≤0.000005%; Be: ≤0.000001%; Bi: ≤0.00001%; Ca: ≤0.00002%; Cd: ≤0.000002%; Co: ≤0.000001%; Cr: ≤0.000005%; Cu: ≤0.000001%; Fe: ≤0.00001%; Ge: ≤0.000005%; K: ≤0.00001%; Li: ≤0.000001%; Mg: ≤0.000005%; Mn: ≤0.000001%; Mo: ≤0.000005%; NH₄⁺: ≤0.0002%; Na: ≤0.00005%; Ni: ≤0.000002%; Pb: ≤0.000002%; Se: ≤0.0001%; Sr: ≤0.000002%; Ti: ≤0.00001%; Tl: ≤0.000005%; V: ≤0.000001%; Zn: ≤0.000005%; Zr: ≤0.00001%
• SMILES 字串: OS(O)(=O)=O
• 儲存溫度: no temp limit
• InChI: 1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
• InChI 密鑰: QAOWNCQODCNURD-UHFFFAOYSA-N

说明

應用

• Simultaneous determination of monochloropropanediol esters and glycidyl esters in vegetable oils by acidic transesterification-gas chromatography-mass spectrometry.: This study by Wang et al. presents a method for detecting harmful compounds in vegetable oils using sulfuric acid for transesterification, followed by GC-MS analysis (Wang et al., 2022).



• Evaluation of an improved acid hydrolysis-HPLC assay for the acetyl content in chitin and chitosan.: Ng et al. developed an enhanced HPLC method for measuring acetyl content in biopolymers, utilizing sulfuric acid for hydrolysis to ensure accurate quantification (Ng et al., 2006).

分析報告

Assay (alkalimetric): ≥ 98.0 %
Colour: ≤ 10 Hazen
Chloride (Cl): ≤ 0.00001 %
Nitrate (NO₃): ≤ 0.00002 %
Phosphate (PO₄): ≤ 0.00005 %
Ag (Silver): ≤ 0.000002 %
Al (Aluminium): ≤ 0.000005 %
As (Arsenic): ≤ 0.000001 %
Ba (Barium): ≤ 0.000005 %
Be (Beryllium): ≤ 0.000001 %
Bi (Bismuth): ≤ 0.00001
Ca (Calcium): ≤ 0.00002 %
Cd (Cadmium): ≤ 0.000002 %
Co (Cobalt): ≤ 0.000001 %
Cr (Chromium): ≤ 0.000005 %
Cu (Copper): ≤ 0.000001 %
Fe (Iron): ≤ 0.00001
Ge (Germanium): ≤ 0.000005 %
K (Potassium): ≤ 0.00001 %
Li (Lithium): ≤ 0.000001 %
Mg (Magnesium): ≤ 0.000005 %
Mn (Manganese): ≤ 0.000001 %
Mo (Molybdenum): ≤ 0.000005 %
NH₄ (Ammonium): ≤ 0.0002 %
Na (Sodium): ≤ 0.00005 %
Ni (Nickel): ≤ 0.000002 %
Pb (Lead): ≤ 0.000002 %
Se (Selenium): ≤ 0.0001 %
Sr (Strontium): ≤ 0.000002 %
Ti (Titanium): ≤ 0.00001
Tl (Thallium): ≤ 0.000005 %
V (Vanadium): ≤ 0.000001 %
Zn (Zinc): ≤ 0.000005 %
Zr (Zirconium): ≤ 0.00001
Substances reducing potassium permanganate (as SO₂): ≤ 0.0002 %
Residue on ignition: ≤ 0.0005 %
Date of expiry: see product label

法律資訊

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

安全信息

• 象形圖: GHS05
• 訊號詞: Danger
• 危險聲明: H290 - H314
• 防範說明: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• 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