COPPER (II) THIOCYANATE
copper(I) thiocyanate
CAS: 1111-67-7
Molecular Formula: CHCuNS
COPPER (II) THIOCYANATE - Names and Identifiers
| Name | copper(I) thiocyanate |
| Synonyms | COPPER THIOCYANATE CUPRIC THIOCYANATE Cuprous Thiocyanate COPPER SULFOCYANIDE CUPROUS THIOCYANATE copper(1+)thiocyanate copper(I) thiocyanate COPPER(I) THIOCYANATE copper(1+) thiocyanate COPPER (II) THIOCYANATE Cuprous thiocyanate (as Cu) copper(2+) bis(thiocyanate) |
| CAS | 1111-67-7 |
| EINECS | 214-183-1 |
| InChI | InChI=1/2CHNS.Cu/c2*2-1-3;/h2*3H;/q;;+2/p-2 |
| InChIKey | PDZKZMQQDCHTNF-UHFFFAOYSA-M |
COPPER (II) THIOCYANATE - Physico-chemical Properties
| Molecular Formula | CHCuNS |
| Molar Mass | 122.63 |
| Density | 2.84 |
| Melting Point | 1084°C |
| Boling Point | 146°C at 760 mmHg |
| Flash Point | 42.1°C |
| Water Solubility | Practically insoluble in water, alcohol. Soluble in NH{4}OH, ether |
| Solubility | Almost insoluble in water, hardly soluble in dilute hydrochloric acid, ethanol, acetone, soluble in ammonia and ether, easily soluble in concentrated alkali metal thiocyanate solution. |
| Vapor Presure | 0Pa at 20-50℃ |
| Appearance | White-like powder |
| Specific Gravity | 2.843 |
| Color | Off-white |
| Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 |
| Solubility Product Constant(Ksp) | pKsp: 12.75 |
| Merck | 14,2669 |
| Storage Condition | Sealed in dry,Room Temperature |
| Stability | Stable. |
| MDL | MFCD00010980 |
| Physical and Chemical Properties | Character white or gray-white powder. melting point 1084 ℃ relative density 2.846 The solubility is almost insoluble in water, insoluble in dilute hydrochloric acid, ethanol, acetone, soluble in ammonia and ether, soluble in concentrated alkali metal thiocyanate solution. |
| Use | It is used as flame retardant and smoke suppressant for PVC plastics, additive for lubricating oil and grease, non-silver salt photosensitive material, copper plating agent, stabilizer for Polysulfide rubber, etc |
COPPER (II) THIOCYANATE - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R32 - Contact with acids liberates very toxic gas R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 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. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S46 - If swallowed, seek medical advice immediately and show this container or label. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | GL8955000 |
| TSCA | Yes |
| Hazard Class | 9 |
COPPER (II) THIOCYANATE - Nature
Open Data Verified Data
white or off-white powder. The relative density was 2. 846. Melting point 1084 °c. Almost insoluble in water, difficult to dissolve in dilute hydrochloric acid, ethanol, acetone, soluble in ammonia and ether, soluble in concentrated alkali metal thiocyanate solution, can form a complex. Dissolved in concentrated sulfuric acid is decomposed.
In the air heated to more than 140 deg C can fire combustion. The dried cuprous thiocyanate absorbs ammonia on cooling to form an adduct containing cuprous thiocyanate (2cuscn. 5nh3), which releases ammonia upon heating.
Last Update：2025-06-10 22:55:16
COPPER (II) THIOCYANATE - Preparation Method
Open Data Verified Data
sulfite reduction method copper sulfate is reduced with sodium sulfite under alkaline conditions, and then reacted with sodium thiocyanate to form a white precipitate, which is filtered, washed with water and dried to obtain cuprous thiocyanate.
Last Update：2022-01-01 11:01:08
COPPER (II) THIOCYANATE - Introduction
Almost insoluble in water, hardly soluble in dilute hydrochloric acid, ethanol, acetone, soluble in ammonia and ether, easily soluble in concentrated alkali metal thiocyanate solution, can form a combination, dissolved in concentrated sulfuric acid is decomposed. It can ignite and burn when heated to above 140 ℃ in air. Dry cuprous thiocyanate can absorb ammonia when it is cold to form an adduct of ammonia cuprous thiocyanate (2 CuSCN · 5NH3), and release ammonia after heating.
Last Update：2022-10-16 17:12:06
COPPER (II) THIOCYANATE - Application
Open Data Verified Data
is an excellent inorganic pigment, used as Ship Bottom antifouling paint, its stability is better than cuprous oxide. Compounding with organotin compounds is an effective antifouling agent. With bactericidal (mildew) and insecticidal activity, for fruit protection. It is used as flame retardant and smoke suppressant for polyvinyl chloride plastics with the addition amount of 0. 01% ~ 10% of the resin. It is used as smoke suppressant in combination with nickel sulfate or melamine molybdate, and used as flame retardant and smoke suppressant in combination with halogenated unsaturated polyester resin. It is used as an additive for lubricating oil and grease, non-silver salt photosensitive material, organic synthesis catalyst or polymerization reaction regulator, copper plating agent, electrode material for seawater battery, and stabilizer for Polysulfide rubber, glass fiber dyeing carrier and tooth abrasive.
Last Update：2025-08-19 16:24:40
COPPER (II) THIOCYANATE - Safety
Open Data Verified Data
packed in a dry plastic drum or plywood drum lined with a polyethylene plastic bag, 25kg net weight per barrel, 40kg. Should be stored in a ventilated, dry place, pay attention to moisture, do not pressure, to prevent the lid and broken barrels. The packaging must be sealed. It is not allowed to be stored and mixed with acid and edible articles. Transport should be protected from rain and sun. Fire can be suppressed with water and sand. Toxicity and protection: see sodium thiocyanate.
Last Update：2025-06-10 22:55:16
COPPER (II) THIOCYANATE - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | cuprous thiocyanate is an efficient antifouling agent, which is mainly used as an antifouling coating for the bottom of a ship. it is an effective antifouling agent mixed with sodium pyrithione and copper pyrithione, and has bactericidal, algae-preventing and marine biological activities. |
| Preparation | Cuprous thiocyanate is generated by the spontaneous decomposition of dry black copper thiocyanate. The decomposition reaction will also produce thiocyanate. Heating is beneficial to decomposition. In water, the decomposition of copper thiocyanate will also produce cuprous thiocyanate, as well as thiocyanate and highly toxic hydrogen cyanide. It is usually obtained by stirring Cu2 (such as copper sulfate) in the presence of sulfurous acid, slowly adding soluble thiocyanate, and precipitating into a white solid. The reducing agent can also be replaced with thiosulfate. |
| Chemical reaction | In the hot state, it reacts with a strong alkali to form cuprous hydroxide and alkali metal thiocyanate. (1)CuSCN NaOH (heat) = CuOH NaSCN (2)2CuSCN 2KOU = Boiling = Cu2O.H2O 2KSCN In acidic solution, strong oxidant acts with it to generate divalent copper salt and other products. (3)10CuSCN 14KMnO4 21H2SO4=10CuSO4 7K2SO4 10HCN 14MnSO4 16H2O |
| solubility in water (g/100ml) | dissolved grams per 100ml of water: 8.427 × 10-7/20 ℃ |
| toxicity | see sodium thiocyanate. |
| use | used as flame retardant and smoke inhibitor for polyvinyl chloride plastics, additives for lubricating oil and grease, non-silver salt photosensitive materials, copper plating agents, stabilizers for polysulfide rubber, etc. is an excellent inorganic pigment, used as anti-fouling coating for ship bottom, and its stability is better than cuprous oxide. Mixing with organotin compounds is an effective antifouling agent. It has bactericidal (anti-mildew) and insecticidal activity and is used for fruit tree protection. Used as a flame retardant and smoke inhibitor for polyvinyl chloride plastics, the addition amount is 0.01% ~ 10% of the resin amount, combined with nickel sulfate or melamine molybdate salt as smoke inhibitor, combined with halogenated unsaturated polyester resin as a flame retardant smoke inhibitor. Used as an additive for lubricating oil and grease, non-silver salt photosensitive material, organic synthesis catalyst or polymerization reaction regulator; copper plating agent, electrode material for seawater battery, stabilizer for polysulfide rubber, carrier for glass fiber dyeing and tooth abrasive, etc. The most stable form of Cu for air and light |
| production method | sulfite reduction method reduces copper sulfate with sodium sulfite under alkaline conditions, then reacts with sodium thiocyanate to generate white precipitate, which is filtered, washed with water and dried to obtain cuprous thiocyanate. Its 2CuSo4 Na2SO3 2NaOH 2NaSCN → 2CuSCN 3Na3SO4 H2O |
Last Update：2024-04-10 22:29:15
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Spot supply
Product Name: Copper thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
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Product Name: Cuprous Thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: 0510-83593312
Email: sales@honorshinechem.com
Mobile: 13665125081
QQ: 2404125167
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
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Product Name: Copper thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
Spot supply
Product Name: copper(I) thiocyanate Request for quotationCAS: 1111-67-7
Tel: 021-60556179
Email: 18721521379@163.com
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Descriptions:
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Product Name: copper(I) thiocyanate Request for quotationCAS: 1111-67-7
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Descriptions:
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Spot supply
Product Name: copper(I) thiocyanate Request for quotationCAS: 1111-67-7
Tel: +86-13776910623
Email: r@reformchem.com
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QQ: 3785839865
Wechat: chemical6666
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
Spot supply
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Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
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Wechat: 18916960931
Descriptions:
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Spot supply
Product Name: Copper thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
Spot supply
Product Name: Cuprous Thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
Spot supply
Product Name: Copper thiocyanate Visit Supplier Webpage Request for quotationCAS: 1111-67-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Descriptions:
Used in plastic masterbatch as antibacterial agent, the manufacture of industrial chemicals, drugs and pesticides, as well as freezing, electroplating, steel flotation and printing
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