7791-20-0
Nickel Chloride Hexahydrate
CAS: 7791-20-0
Molecular Formula: Cl2H12NiO6
7791-20-0 - Names and Identifiers
| Name | Nickel Chloride Hexahydrate |
| Synonyms | (II) chL oride hexahydrate Nickel Chloride Hexahydrate Nickelous chloride Hexahydrate nickel II chloride hexahydrate NICKEL(II) CHLORIDE HEXAHYDRATE FOR ANALYSIS EMSURE ACS |
| CAS | 7791-20-0 |
| EINECS | 616-576-7 |
| InChI | InChI=1/ClH.Ni.6H2O/h1H;;6*1H2/q;+2;;;;;;/p-1 |
| InChIKey | LAIZPRYFQUWUBN-UHFFFAOYSA-L |
7791-20-0 - Physico-chemical Properties
| Molecular Formula | Cl2H12NiO6 |
| Molar Mass | 237.69 |
| Density | 1,92 g/cm3 |
| Melting Point | 140℃ -H{2}O |
| Water Solubility | 2540 G/L (20 ºC) |
| Solubility | 2540g/l |
| Appearance | Solution |
| Color | Green |
| Exposure Limit | ACGIH: TWA 0.1 mg/m3NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3 |
| Merck | 14,6505 |
| PH | 4.9 (100g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Hygroscopic. Incompatible with peroxides. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Trait: Green or grass-green, monoclinic prism-like crystal. melting point 80 ℃ relative density 1.921 solubility soluble in water and ethanol. |
| Use | Used for electroplating, also can be used as preservative and ammonia absorbent |
7791-20-0 - Risk and Safety
| Risk Codes | R45 - May cause cancer R25 - Toxic if swallowed R36/38 - Irritating to eyes and skin. R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R68 - Possible risk of irreversible effects R48/23 - R42/43 - May cause sensitization by inhalation and skin contact. R38 - Irritating to the skin R23/25 - Toxic by inhalation and if swallowed. R61 - May cause harm to the unborn child R49 - May cause cancer by inhalation |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 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. S37 - Wear suitable gloves. S29 - Do not empty into drains. S24 - Avoid contact with skin. |
| UN IDs | UN 3288 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | QR6480000 |
| TSCA | Yes |
| HS Code | 28273500 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 186 mg/kg |
7791-20-0 - Upstream Downstream Industry
| Raw Materials | Sodium carbonate Sulfuric acid Nickelous sulfate Nickel nickel carbonate Nitric acid Hydrochloric acid |
7791-20-0 - Nature
Open Data Verified Data
Green monoclinic crystal or crystalline powder. Deliquescence. Soluble in ammonia, ethanol, soluble in water, acidic solution. Melting point 80 °c. A vigorous reaction with potassium. By high heat decomposition, release of toxic smoke.
Last Update：2024-01-02 23:10:35
7791-20-0 - Preparation Method
Open Data Verified Data
nickel carbonate was dissolved in pure hydrochloric acid until saturation, filtered and the filtrate was evaporated. Then, it is cooled and the crystals are precipitated by Suction filtration.
Last Update：2022-01-01 08:59:33
7791-20-0 - Use
Open Data Verified Data
used in the electroplating industry for nickel plating, in the rapid nickel plating as anode activation. Nickel Chloride has a strong ammonia absorption property, and can be used as an ammonia absorbent in industry or in a gas mask. It can also be used in the production of various nickel compounds and catalysts, dry batteries, and also in the production of preservatives.
Last Update：2022-01-01 08:59:34
7791-20-0 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is used for electroplating nickel, as an anode activator in rapid nickel plating, and as an ammonia absorber in industry or in gas masks. For the manufacture of catalysts, dry batteries. Production of cryptic ink. used for electroplating, also used as preservative and ammonia absorbent nickel plating, manufacturing hidden ink. |
| production method | metallic nickel method the metallic nickel is added to an acid processor containing an appropriate amount of water or mother liquor, and then nitric acid, sulfuric acid reaction to generate nickel sulfate solution, sent to the neutralization reactor, adding soda ash solution neutralization reaction to generate nickel carbonate, after the separation of sodium sulfate by filtration, washing with water, nickel carbonate is added to the reactor and acidified with hydrochloric acid to form nickel chloride, hydrogen peroxide and barium carbonate are added to purify the solution, iron and sulfate are removed by filtration, and then concentrated by evaporation, cooled and crystallized, and centrifuged, finished nickel chloride was obtained. Its 3Ni 8HNO3 → 3Ni(NO3)2 4H2O 2NO ↑ni (NO3)2 H2SO4 → NiSO4 2HNO3NiSO4 Na2CO3 → NiCO3 Na2SO4NiCO3 2HCl → NiC12 H2O CO2) released from the reaction of nitrogen oxide gas, ammonium nitrate by-product can be made by absorption with ammonia. Nickel-containing waste material method the nickel-containing waste material (bottom waste) is added with an acidulant to react with nitric acid to generate a Nickel nitrate solution, which is purified by adding sodium thiosulfate to remove impurities such as copper, lead and zinc. After purification, the solution reacts with the caustic soda solution to generate nickel hydroxide, which is filtered and washed with water. The nickel hydroxide is added to the reactor and acidified with hydrochloric acid to generate nickel chloride, and hydrogen sulfide is added to remove impurities such as iron, the clarified liquid was sent for evaporation and concentration, followed by cooling crystallization and centrifugal separation to prepare a finished nickel chloride product. Ni(OH)2 2HCl → NiCl2 2H2O |
Last Update：2024-04-10 22:29:15
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