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
571024
Chlorosulfonic acid
99%
Synonym(s):
Sulfuric chlorohydrin
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vapor density
4 (vs air)
Quality Level
vapor pressure
1 mmHg ( 25 °C), 3.3 mmHg ( 37.7 °C)
assay
99%
form
liquid
expl. lim.
37.7 %
concentration
99%
refractive index
n20/D 1.433 (lit.)
pH
< 1 (at 20 °C)
bp
151-152 °C/755 mmHg (lit.)
solubility
acetic acid: soluble(lit.), chloroform: soluble(lit.), dichloromethane: soluble(lit.)
density
1.753 g/mL at 25 °C (lit.)
SMILES string
OS(Cl)(=O)=O
InChI
1S/ClHO3S/c1-5(2,3)4/h(H,2,3,4)
InChI key
XTHPWXDJESJLNJ-UHFFFAOYSA-N
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1 of 4
This Item | |||
|---|---|---|---|
| assay 99% | assay ≥97% (acidimetric) | assay ≥98% (acidimetric) | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level - | Quality Level 100 |
| solubility acetic acid: soluble(lit.), dichloromethane: soluble(lit.), chloroform: soluble(lit.) | solubility - | solubility - | solubility alcohol: slightly soluble(lit.), benzene: slightly soluble(lit.), chloroform: slightly soluble(lit.), diethyl ether: slightly soluble(lit.), water: freely soluble(lit.) |
| pH < 1 (at 20 °C) | pH <1 (20 °C in H2O, Aqueous solution; rigorous decomposition) | pH <1 (20 °C in H2O, Aqueous solution; rigorous decomposition) | pH - |
| vapor density 4 (vs air) | vapor density - | vapor density - | vapor density - |
| density 1.753 g/mL at 25 °C (lit.) | density 1.75 g/cm3 at 20 °C | density 1.75 g/cm3 at 20 °C | density - |
General description
Application
- Synthesis of di-n-butyl ammonium chlorosulfonate, a secondary amine ionic liquid.
- To prepare sulfonated polyethersulfone (SPES) with enhanced hydrophilic property.
- To attach sulfate group to silk fibroin for improving its anticoagulant ability.[1]
- As a catalyst to prepare substituted coumarin, via von Pechmann condensation between phenol and β-ketoester.
- As a substitute to acid catalyst in Biginelli reaction to prepare 3,4dihydropyrimidines.
Packaging
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3
target_organs
Respiratory system
supp_hazards
Storage Class
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 571024-5G | 04061832597485 |
| 571024-4KG | 04065273543575 |
| 571024-1KG | 04061832597478 |
| 571024-4X100G | 04061837370083 |
| 571024-100G | 04061832597461 |
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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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