Molekula
Chlorosulfonic acid
Chlorosulfonic acid is a highly reactive, corrosive chemical used in organic synthesis, particularly for sulfonation and chlorination reactions. It is a strong acid and must be handled with extreme care. CAS: 7790-94-5, Molecular formula: ClSO3H, Molecular weight: 116.52 g/mol, Storage: Ambient. Molekula supplies Chlorosulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Chlorosulfonic acid is a highly reactive, corrosive chemical used in organic synthesis, particularly for sulfonation and chlorination reactions. It is a strong acid and must be handled with extreme care. CAS: 7790-94-5, Molecular formula: ClSO3H, Molecular weight: 116.52 g/mol, Storage: Ambient. Molekula supplies Chlorosulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Slightly hazy viscous liquid |
| Assay | ≥ 96.00 % |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | I |
| Shelf Life | 36 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 7790-94-5 |
| Molecular Formula | ClSO3H |
| Molecular Weight | 116.52 |
| SMILES | O=S(=O)(Cl)O |
| EC / UN Number | 1754 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28062000 |
| Tariff Code | 2806200000 |
Safety & GHS
-
Compressed Gas
GHS04
-
Corrosive
GHS05
Hazard statements
- EUH014 Reacts violently with water
- EUH029 Contact with water liberates toxic gas
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
- H330 Fatal if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P201 Obtain special instructions before use
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P310 Immediately call a POISON CENTER or doctor/physician
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is chlorosulfonic acid used for?
Chlorosulfonic acid is primarily used in the synthesis of sulfonates, sulfonic acids, and other organic intermediates, particularly in pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight of chlorosulfonic acid?
The formula is ClSO3H and the molecular weight is 116.52 g/mol.
How should chlorosulfonic acid be stored?
It should be stored at ambient temperature in a tightly sealed, corrosion-resistant container away from moisture and incompatible materials.
What grade of chlorosulfonic acid does Molekula supply?
Molekula supplies chlorosulfonic acid in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply chlorosulfonic acid in bulk?
Yes, Molekula can supply chlorosulfonic acid in bulk quantities; please contact our sales team for volume pricing and logistics.
What documentation comes with a purchase of chlorosulfonic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS and regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.