Disulfur dichloride
sulfur monochloride
CAS: 10025-67-9
Molecular Formula: Cl2S2
Disulfur dichloride - Names and Identifiers
| Name | sulfur monochloride |
| Synonyms | U.N. 1828 Sulfor choride SulfureChloride SULPHURCHLORIDE SULPHURE CHLORIDE SULFUR (I) CHLORIDE SULFUR MONOCHLORIDE DISULFUR DICHLORIDE Disulfur Dichloride sulfur monochloride disulphur dichloride chlorosulfanyl thiohypochlorite sulfur(+2) dihydride cation dichloride |
| CAS | 10025-67-9 |
| EINECS | 233-036-2 |
| InChI | InChI=1/2ClH.H2S/h2*1H;1H2/q;;+2/p-2 |
Disulfur dichloride - Physico-chemical Properties
| Molecular Formula | Cl2S2 |
| Molar Mass | 135.04 |
| Density | 1.688g/mLat 25°C(lit.) |
| Melting Point | −80°C(lit.) |
| Boling Point | 138°C(lit.) |
| Flash Point | >130℃ |
| Water Solubility | reacts |
| Vapor Presure | 6.8 mm Hg ( 20 °C) |
| Vapor Density | 4.7 (vs air) |
| Appearance | yellow-red oily liquid |
| Merck | 13,9060 |
| Storage Condition | Store below +30°C. |
| Explosive Limit | 4.2-32.5%(V) |
| Refractive Index | n20/D 1.658(lit.) |
| Physical and Chemical Properties | density 1.688 melting point -80°C boiling point 138°C refractive index 1.658 water-soluble reactions |
Disulfur dichloride - Risk and Safety
| Risk Codes | R14 - Reacts violently with water R20 - Harmful by inhalation R25 - Toxic if swallowed R29 - Contact with water liberates toxic gas R35 - Causes severe burns R50 - Very Toxic to aquatic organisms R67 - Vapors may cause drowsiness and dizziness R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3390 6.1/PG 1 |
| WGK Germany | 3 |
| RTECS | WS4300000 |
| HS Code | 28121091 |
| Hazard Class | 8 |
| Packing Group | I |
| Toxicity | LD50 orally in Rabbit: 132 mg/kg |
Disulfur dichloride - Nature
Open Data Verified Data
yellow-red liquid, asphyxiating, irritating odor. Strong smoke in the air. The relative density was 1. 678. Melting Point -80 °c. Boiling point 135,6. Flash point 118 °c. Ignition Temperature 234. Refractive index 570. The saturated vapor pressure was 1.33kPa (19 °c). The relative vapor density was 4.7. Soluble in ethanol, benzene, ether, carbon disulfide, carbon tetrachloride, sulfur, iodine, metal chloride, organic compounds of the excellent solvent, water or moisture reaction, decomposition of sulfur, sulfur dioxide and hydrogen chloride and smoke, the emission of irritating and corrosive hydrogen chloride gas. It is very stable at room temperature, but decomposes to sulfur and chlorine at 100 °c and completely decomposes at 300 °c. Can be reduced by the metal to generate chloride and sulfide, saturated with chlorine can generate sulfur dichloride and so on. It can react with metal oxides or metal sulfides to form metal chlorides. Dry sulfur monochloride at room temperature is non-corrosive to copper and iron, and is strongly corrosive to most metals in case of tide.
Last Update：2025-06-10 22:55:16
Disulfur dichloride - Preparation Method
Open Data Verified Data
synthesis method: the sulfur powder is put into the jacket reactor, then the steam is introduced to heat, and a small amount of chlorine is introduced at the same time. After the reaction for 1H, the heating is stopped, and the amount of chlorine is added, maintain the reaction at 50~60 ℃ for 16~20H, after filtration, distillation at 130~141 ℃, determine the relative density of the feed and the content of sulfur monochloride in boiling range is qualified, A sulfur monochloride product was obtained.
Last Update：2022-01-01 11:00:13
Disulfur dichloride - Application
Open Data Verified Data
low-temperature vulcanizing agent and adhesive for rubber. Unsaturated fatty acids by sulfur monochloride treatment, can be used as pressure lubricant, cottonseed oil, soybean oil, rapeseed oil and other vegetable oils by sulfur monochloride treatment, can be made into a white vulcanized oil glue
Last Update：2025-08-19 16:24:40
Disulfur dichloride - Safety
Open Data Verified Data
belongs to the first class of inorganic acid corrosion articles, risk code number: GB 8.1 class 81032. UNN0.1828; IMDG CODE page 8229, class 8.1. Ceramic tanks, asbestos cement sealing, 60kg net weight per tank. It can also be transported in bulk by tank car. The package shall be marked with "corrosion product. Should be stored in a cool, ventilated warehouse. Keep away from fire and heat source. The temperature of the library is not more than 35 degrees C, and the relative humidity is not more than 80%. Fire-fighting equipment of corresponding variety and quantity shall be provided. The storage area shall have respective leakage emergency treatment equipment and appropriate containment materials. The management system of "five pairs" of extremely toxic substances should be strictly implemented. During transportation, it is necessary to ensure that the container does not leak, collapse, fall or damage. Mixed loading and transportation with acids, alkalis, alcohols, alkali metals and edible chemicals are strictly prohibited. During transport should be protected against exposure to sunlight, rain, high temperature, to prevent collision. During loading and unloading, care should be taken to prevent the ceramic container from breaking. When there is a fire, it can be suppressed by sand and dry powder, but it should not be used with water. Fire-fighting personnel must wear filter-type gas masks (full face masks) or isolated respirators, and full-body fire-fighting and virus-proof clothing to put out fire in the upward wind direction. Toxicity and protection: LC50150ppm (mouse, inhalation). This product is non-flammable, highly toxic, strong corrosive, strong irritation, can cause human burns. Has a asphyxiating odor, strong irritation of the eye and upper respiratory mucosa, and can cause severe skin burns. A small number of serious poisoning can cause pulmonary edema. The vapor of sulfur monochloride causes tears. Contact with water will be decomposed to produce hydrogen chloride, the skin and mucous membranes have strong irritation. The maximum allowable concentration in the environment is 6mg/m3. After skin or eye contact, apply a large amount of flowing water or saline to rinse for more than 15min. In case of accidental inhalation, the patient should be separated from the site to a place with fresh air, Keep airway unobstructed. Such as Dyspnea, to the delivery of oxygen. If breathing stops, perform artificial respiration immediately. The patient visited hospital. After eating, should immediately rinse with water, to drink milk or egg white. The patient visited hospital. The production workshop and equipment should be closed, and the workshop should be well ventilated. The operator should wear gas masks (full face mask), rubber acid and alkali-resistant clothing and rubber acid and alkali-resistant gloves to protect the respiratory organs and skin. Smoking, eating and drinking are prohibited at work. After completion of work, shower and dressing.
Last Update：2022-01-01 11:00:14
Disulfur dichloride - 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) |
| Application | low-temperature vulcanizing agent and adhesive for rubber. Unsaturated fatty acids by sulfur monochloride treatment, can be used as pressure lubricant; Cottonseed oil, soybean oil, rapeseed oil and other vegetable oils by sulfur monochloride treatment, can be made into a white vulcanized oil glue (White brake, white oil glue) and Amber vulcanized oil rubber (black brake, black oil rubber) is used in the rubber industry. Also used in petroleum additives. The dye industry and organic synthesis are used as chlorinating agents. Finishing agents for the manufacture of fabrics in the chemical fiber industry. Used in the manufacture of pesticides. The metallurgical industry is used as an extractant for precious metals such as gold and silver. The wood industry is used as a hardener for Cork. The defense industry is used as a toxic agent for military use. low-temperature vulcanizing agents and adhesives for rubber, insecticides, extractants, etc. used as a chlorinating or vulcanizing agent. |
| production method | synthesis method sulfur powder is put into a jacketed reactor, then heated by steam and a small amount of chlorine gas is introduced at the same time, after 1H of reaction, stop heating, and increase the amount of chlorine, maintain the reaction at 50~60 ℃ for 16~20H, after filtration, at 130~141 ℃ for distillation, determination of the relative density of the feed and boiling range of sulfur monochloride content qualified after the preparation of sulfur monochloride products. Its 2s C12 → S2C12 by-product recovery method after carbon disulfide and chlorine are measured, mixed through a mixer and then enter the reactor to react at 95~100 ℃, and the reacted materials enter the fractionating column, the temperature at the top of the column is controlled at about 75 ° C., the temperature of the column kettle is 120-130 ° C., and the reflux ratio is 1:1. Sulfur monochloride flows out of the column kettle to the storage tank and is recovered as a by-product in the production process of carbon tetrachloride. CS2 3C12 → CCl4 S2C12 |
| category | corrosive article |
| toxicity grade | high toxicity |
| Acute toxicity | inhalation-mouse LC50: 150 PPM; Oral-rat LD50: 132 mg/kg |
| flammability hazard characteristics | in case of high heat, open flame, flammable oxidant; Heat or water decomposition of toxic chloride, sulfur oxide gas |
| 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, carbon dioxide; No water |
| Occupational Standard | TWA 1 PPM (6 mg/m3); PEL 2 PPM (12 mg/m3) |
| spontaneous combustion temperature | 451 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-and health-threatening concentration | 5 ppm |
Last Update：2024-04-09 20:52:54
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View History
Disulfur dichloride
Digallium trisulphide
C.I. Acid orange 89
溶剂红 8
Tantalum Nitride , powder (TaN)
CyprisateCI
LABOTEST-BB LT00159431
Neutral yan LAN
Digallium trisulphide
C.I. Acid orange 89
溶剂红 8
Tantalum Nitride , powder (TaN)
CyprisateCI
LABOTEST-BB LT00159431
Neutral yan LAN