Diphosphoric acid, copper salt - Names and Identifiers
Name | Copper Pyrophosphate
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Synonyms | HSDB 247 Copper Pyrophosphate Cupric Pypophosphate Copper pyrophosphate dicopper(2+) diphosphate Copper(II) pyrophosphate Diphosphoric acid, copper salt Copper(II) diphosphate xhydrate Pyrophosphoric acid, copper salt EPA Pesticide Chemical Code 069701 Diphosphoric acid copper(2+) salt hydrate copper (hydroxy-oxido-phosphoryl) hydrogen phosphate CUPRIC PYROPHOSPHATE, TRIHYDRATECUPRIC PYROPHOSPHATE, TRIHYDRATECUPRIC PYROPHOSPHATE, TRIHYDRATECUPRIC PYROPHOSPHATE, TRIHYDRATE
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CAS | 16570-28-8 10102-90-6
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EINECS | 629-005-1 |
InChI | InChI=1/Cu.H4O7P2/c;1-8(2,3)7-9(4,5)6/h;(H2,1,2,3)(H2,4,5,6)/q+2;/p-2 |
Diphosphoric acid, copper salt - Physico-chemical Properties
Molecular Formula | Cu2P2O7
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Melting Point | 1170℃ |
Water Solubility | Insoluble in water. |
Solubility | H2O: insoluble(lit.) |
Appearance | Green to blue powder |
Color | Blue |
Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 |
Storage Condition | Room Temprature |
Physical and Chemical Properties | Traits light green powder. soluble in acid, insoluble in water. |
Use | Used as an additive for electroplating, the preparation of phosphate pigment |
Diphosphoric acid, copper salt - Risk and Safety
Hazard Symbols | Xi - Irritant
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Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
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Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
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WGK Germany | 3 |
Diphosphoric acid, copper salt - Nature
Open Data Verified Data
light green powder, soluble in acid, insoluble in water, can form double salt with sodium pyrophosphate, has a strong ability to complex metal ions.
Last Update:2024-01-02 23:10:35
Diphosphoric acid, copper salt - Preparation Method
Open Data Verified Data
double decomposition method; The copper sulfate and anhydrous sodium pyrophosphate were made into a certain concentration of solution, after filtration and purification, the copper sulfate solution was added to the reactor, under stirring, the specified amount of anhydrous sodium pyrophosphate solution is added dropwise for double decomposition reaction to generate copper pyrophosphate, the pH value is controlled at about 5~5.5, filtered, rinsed with water, centrifuged and dried, A finished copper pyrophosphate was obtained.
Last Update:2022-01-01 08:59:53
Diphosphoric acid, copper salt - Use
Open Data Verified Data
copper pyrophosphate is mainly used for cyanide-free electroplating and is the main salt for supplying copper ions in the plating solution. It is suitable for the copper bottom layer of the decorative protective layer and the local anti-seepage carbon coating of the carburized parts. For pyrophosphate copper plating, bronze plating, nickel plating, copper tin alloy and tungsten alloy.
Last Update:2022-01-01 08:59:53
Diphosphoric acid, copper salt - Safety
Open Data Verified Data
lined with polyethylene plastic bag, plastic woven bag, each bag net weight 25kg, 50kg. Should be stored in a cool, ventilated, dry warehouse. The package is sealed and moisture-proof, and cannot be stored and mixed with acid articles. Transport should be protected from rain and sun exposure. During loading and unloading, care should be taken to prevent package breakage. Fire can be suppressed with water, foam or carbon dioxide.
Last Update:2022-01-01 08:59:53
Diphosphoric acid, copper salt - Introduction
Copper Pyrophosphate is an inorganic compound with the chemical formula Cu3(PO4)2. The following is an introduction to the nature, use, formulation and safety information of Copper Pyrophosphate:
Nature:
Copper Pyrophosphate is a pale green crystalline powder, odorless. It has a melting point of about 960 ° C. And a low solubility. Slightly soluble in water, almost insoluble in acid, but can be dissolved in concentrated nitric acid or ammonia. Copper Pyrophosphate is an unstable compound that readily decomposes to give off oxygen.
Use:
Copper Pyrophosphate is often used as a Copper precursor in the laboratory and can be used to prepare other Copper compounds. It can also be used as a fungicide and is widely used in agriculture. In addition, Copper Pyrophosphate can also be used as a preparation of paints, pigments and precipitants.
Preparation Method:
The preparation of Copper Pyrophosphate can be obtained by the reaction of Copper salt and phosphoric acid. A common method is to react Copper sulfate with phosphoric acid, producing an excess of phosphoric acid such that the product is Copper Pyrophosphate.
Safety Information:
Copper Pyrophosphate has certain toxicity, should avoid direct contact with skin and eyes. Wear personal protective equipment such as gloves and safety glasses when using. In the process of operation and storage to avoid dust, to prevent inhalation or ingestion. If touched or ingested by mistake, rinse immediately with clean water and seek medical help. At the same time, Copper Pyrophosphate should be kept away from flammable materials and oxidants and stored in a dry and ventilated place.
Last Update:2024-04-10 22:29:15