2092-16-2
calcium dithiocyanate
CAS: 2092-16-2
Molecular Formula: C2CaN2S2
2092-16-2 - Names and Identifiers
| Name | calcium dithiocyanate |
| Synonyms | calciumrhodanid calciumrhodanate Calciumrhodanide Calciumsulfocyanate CALCIUM THIOCYANATE Calcium Thiocyanate Calcium sulfocyanide Calcium dithiocyanate calcium dithiocyanate calcium bis(thiocyanate) |
| CAS | 2092-16-2 |
| EINECS | 218-244-3 |
| InChI | InChI=1/2CHNS.Ca/c2*2-1-3;/h2*3H;/q;;+2/p-2 |
2092-16-2 - Physico-chemical Properties
| Molecular Formula | C2CaN2S2 |
| Molar Mass | 156.24 |
| Density | 1.36 g/cm3(Temp: 70 °C) |
| Melting Point | 42.5-46.5°C(lit.) |
| Boling Point | 146°C at 760 mmHg |
| Flash Point | 160°C |
| Water Solubility | very soluble H2O; soluble methanol, ethanol, acetone [MER06] |
| Vapor Presure | 4.73mmHg at 25°C |
| Appearance | solid |
| Physical and Chemical Properties | Decomposition temperature: 160°C |
| Use | Mainly used in pesticide, pharmaceutical, electroplating, textile, construction, chemical reagents and other industries |
2092-16-2 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R32 - Contact with acids liberates very toxic gas R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S13 - Keep away from food, drink and animal foodstuffs. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 2 |
2092-16-2 - Upstream Downstream Industry
| Raw Materials | Carbon disulfide Ammonia |
2092-16-2 - Nature
Open Data Verified Data
white hygroscopic crystal or powder, soluble in water, alcohol, acetone. Heat to decomposition above 160 °c.
Last Update：2024-01-02 23:10:35
2092-16-2 - Preparation Method
Open Data Verified Data
double decomposition method: the ammonium thiocyanate solution and the calcium hydroxide solution are subjected to double decomposition reaction to generate calcium thiocyanate of trihydrate, and the calcium thiocyanate product is obtained by crystallization in the ammonia solution.
Last Update：2022-01-01 11:01:05
2092-16-2 - Use
Open Data Verified Data
cellulose and polyacrylate solvents, paper making, fabric foaming agent, extraction of soy protein, treatment of acetate fiber, improve the structure of the fiber.
Last Update：2022-01-01 11:01:05
2092-16-2 - Safety
Open Data Verified Data
packed with a dry plastic bucket or a plywood bucket lined with a polyethylene plastic bag. Net weight per barrel: 25kg, 40kg. Belonging to inorganic drugs. Risk code, GB6, Class 1, 61501. This product is easily deliquescent in the air and stored in a cool, dry place. Should pay attention to moisture, do not pressure, to prevent the lid and broken barrels. It is not allowed to be stored and mixed with acid and edible articles. Transport should be protected from rain and sun exposure. In case of fire, use water and sand to put out the fire. Toxicity and protection: chronic poisoning occurs when the thyroid injury. After oral administration will occur similar to schizophrenia, accompanied by disorientation, hallucinations and acute gastritis.
Last Update：2022-01-01 11:01:06
2092-16-2 - Reference Information
| Decomposition | 160 ºC |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| inorganic compound | calcium thiocyanate is an inorganic compound that can be used as a carrier for dyeing glass fibers with basic dyes, catalyst for photopolymerization of nitrile, scale prevention agent in suspension polymerization of polyvinyl chloride. The aqueous solution of calcium thiocyanate can be used as a solvent for cellulose, and the complex reaction with the crown ether substance can be used as an antistatic agent for organic materials. It can also be used in the production of sulfuric acid paper and textile industry. |
| thiocyanate | There are two isomers of thiocyanate, one is thiocyanate H-S-C ↑n, one is H-N-C = S. The free acid has not yet been isolated. Most thiocyanates are soluble in water. The SCN-ion is a good ligand. A particularly sensitive reaction of the SCN-ion is the formation of various red complexes with Fe3. Potassium thiocyanate or ammonium thiocyanate is therefore commonly used as a reagent for the detection of Fe 3. colorless volatile liquid, slightly toxic. Melting Point -110 ℃, more stable at 0 ℃, rapid decomposition at room temperature. Soluble in water, strong acidic aqueous solution. The hot solution or concentrated solution is easy to decompose and easy to polymerize. The white crystals were polymerized at -90 to -85 °c. Heat in a vacuum to form a light yellow diethyl ether-soluble thiocyanuric acid, which is easily re-decomposed into thiocyanic acid. Prepared by the interaction of potassium thiocyanate with potassium hydrogen sulfate or by passing an aqueous solution of ammonium thiocyanate through an H-type cation exchange resin. Reagents for the quantitative determination of iron and silver were tested in the laboratory for their salt action. |
| toxicity | thyroid injury occurred in chronic poisoning. After oral administration will occur similar to schizophrenia, accompanied by disorientation, hallucinations and acute gastritis. |
| Use | solvent for cellulose and polyacrylate, foaming agent for paper making, fabric, extraction of soybean protein, treatment of acetate fiber, improve the structure of the fiber. mainly used in pesticide, pharmaceutical, electroplating, textile, construction and other industries mainly used in pesticide, pharmaceutical, electroplating, textile, construction, chemical reagents and other industries |
| production method | double decomposition method the double decomposition reaction of ammonium thiocyanate solution and calcium hydroxide solution is carried out to generate calcium thiocyanate of trihydrate, calcium thiocyanate was isolated by crystallization in ammonia solution. Its 2NH4SCN Ca(OH)2 → Ca(SCN)2 3H2O 2NH3 |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | oral-mouse LDL0: 120 mg/kg |
| flammability hazard characteristics | strong reductant; Toxic sulfur oxide and nitrogen oxide gases from combustion |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; With acid, alkali, oxidant, separate storage and transportation of food |
| fire extinguishing agent | water, sand |
Last Update：2024-04-09 21:11:58
