Sulfuryl chloride
Sulfuryl chloride
CAS: 7791-25-5
Molecular Formula: Cl2O2S
Sulfuryl chloride - Names and Identifiers
Sulfuryl chloride - Physico-chemical Properties
| Molecular Formula | Cl2O2S |
| Molar Mass | 134.97 |
| Density | 1.667 |
| Melting Point | -54.1 °C |
| Boling Point | 69.1 °C |
| Flash Point | 69.1°C |
| Water Solubility | reacts |
| Solubility | Miscible with benzene, toluene, chloroform, ether, carbon tetrachloride and glacial acetic acid. |
| Vapor Presure | 100 mm Hg ( 17.8 °C) |
| Vapor Density | 4.7 (vs air) |
| Appearance | Liquid |
| Specific Gravity | 1.670 (20/20℃) |
| Color | Clear colorless to yellow |
| Exposure Limit | ACGIH: TWA 50 ppmOSHA: TWA 25 ppm; STEL 125 ppmNIOSH: IDLH 2300 ppm |
| Merck | 14,8980 |
| Storage Condition | Hygroscopic, Room Temperature, under inert atmosphere |
| Stability | Reacts violently with water. Incompatible with acids, alcohols, bases, metals, amines, moisture. |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.443(lit.) |
| Physical and Chemical Properties | Characteristics of colorless liquid, with a strong stimulus odor. melting point -54.1 ℃ boiling point 69.1 ℃ relative density 1.6674 soluble in benzene, acetic acid, etc. |
| Use | Used in organic synthesis, medicine, dyes, pesticides, etc., also used as surfactants |
Sulfuryl chloride - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R40 - Limited evidence of a carcinogenic effect R14 - Reacts violently with water R37 - Irritating to the respiratory system R67 - Vapors may cause drowsiness and dizziness |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 2927 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | WT4870000 |
| FLUKA BRAND F CODES | 3-10-21 |
| TSCA | Yes |
| HS Code | 28121099 |
| Hazard Class | 8 |
| Packing Group | I |
Sulfuryl chloride - Upstream Downstream Industry
| Raw Materials | sulfur dioxide Chlorine |
| Downstream Products | Sulfamide 2,4-Dimethyl-5-acetylthiazole Triadimefon |
Sulfuryl chloride - Nature
Open Data Verified Data
a colorless liquid with a strongly irritating odor. The relative density was 1. 6674. Melting Point -54.1 °c. Boiling point 69.1 °c. When water is decomposed, the hydrolysis products are sulfuric acid and hydrochloric acid. Soluble in benzene, acetic acid, etc. Micro-smoking in the air. Stable at room temperature, high temperature decomposition, light and catalyst
The decomposition is accelerated in the presence of an agent (aluminum chloride, activated carbon, etc.). Can react with many inorganic compounds, can also react with many organic compounds, under certain conditions, the reaction is more selective. Corrosive.
Last Update：2025-06-10 22:55:16
Sulfuryl chloride - Preparation Method
Open Data Verified Data
chlorination method: The dried sulfur dioxide and chlorine are reacted in the presence of an activated carbon catalyst, and the generated sulfuryl chloride is condensed to obtain a finished sulfuryl chloride.
Last Update：2022-01-01 11:00:18
Sulfuryl chloride - Application
Open Data Verified Data
It is mainly used as a chlorinating agent or a chlorosulfonating agent, such as the chlorination of aromatic compounds, the chlorination of carboxylic acids and the chlorination of various other organic and inorganic compounds. It is also used in the manufacture of pharmaceuticals, dyes, surfactants, etc.
Last Update：2025-08-19 16:24:40
Sulfuryl chloride - Safety
Open Data Verified Data
glass bottles, coat wooden boxes, 25kg net weight per bottle. The package shall be marked with "corrosion product. Belongs to the first class of inorganic acid corrosion articles, risk code number: GB 8.1 class 81035. UNN0.1834;IMDG CODE page 8233, class 8.1. Should be stored in a cool, ventilated, dry shed. The packaging must be sealed. It shall not be stored and transported together with edible chemical raw materials and alkalis. In the transport process to prevent rain and sun, pay attention to moisture. When loading and unloading should be light to prevent packaging rupture. When there is a fire, it can be suppressed by sand and dry powder, but not by water. Toxicity and protection: See section thionyl chloride.
Last Update：2025-06-10 22:55:16
Sulfuryl chloride - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | see thionyl chloride. |
| purpose | used as a pharmaceutical, pesticide, dye and organic synthesis intermediate used as a reagent for the determination of amines, also used in organic synthesis sulfuryl chloride is an intermediate in the synthesis of pesticide carbosulfan carbofuran, which is an important chlorinating agent. It is mainly used as a chlorinating agent or a chlorosulfonating agent, such as the chlorination of aromatic compounds, the chlorination of carboxylic acids and the chlorination of various other organic and inorganic compounds. Also used in the manufacture of pharmaceuticals, dyes, surfactants, etc. for organic synthesis, pharmaceuticals, dyes, pesticides, etc., also used as surfactants. organic synthesis of chlorinating agent, sulfonating agent, chlorosulfonating agent. Determination of aromatic and aliphatic compounds. |
| production method | chlorination method dry sulfur dioxide and chlorine are reacted in the presence of activated carbon catalyst, and the generated sulfuryl chloride is condensed, A finished product of sulfuryl chloride was obtained. Its SO2 C12 → SO2C12 is prepared at 20~30 ℃ with Cl2 and SO2 as raw materials and benzoylurea as catalyst. Reaction equations such as: Cl2 SO2 → SO2Cl2 |
| category | corrosive article |
| flammability hazard characteristics | toxic hydrogen chloride and sulfide gas emitted in water; toxic sulfide and chloride fumes from heat |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from alkalis and food additives |
| fire extinguishing agent | dry sand, dry stone powder; No water |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 15:16:52
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View History
Sulfuryl chloride
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Raw Materials for Sulfuryl chloride
Downstream Products for Sulfuryl chloride