373-02-4 Usage
Description
Nickelous acetate, also known as Nickel (II) acetate, is an inorganic compound composed of nickel and acetic acid. It is typically found as the tetrahydrate form and is characterized by its dull green appearance, odorless nature, and sweet taste. Nickelous acetate is a versatile compound with various applications across different industries.
Uses
1. Used in Catalyst Applications:
Nickelous acetate is utilized as a catalyst in various chemical reactions, enhancing the rate of these processes and improving overall efficiency.
2. Used in Textile Industry (Dye Mordant):
In the textile industry, Nickelous acetate serves as a dye mordant, which helps to bind dyes to textile fibers, ensuring colorfastness and improving the quality of the final product.
3. Used in Electroplating Nickel:
Nickelous acetate is employed in the electroplating process to deposit a layer of nickel onto various surfaces, providing enhanced durability, corrosion resistance, and aesthetic appeal.
4. Used in Sealing Anodized Aluminum:
As a sealer for anodized aluminum, Nickelous acetate helps to protect the anodic coating, ensuring its longevity and maintaining the integrity of the aluminum surface.
Physical Properties:
The tetrahydrate form of Nickelous acetate is a green crystalline solid with a density of 1.744 g/cm3.
It has an odor of acetic acid and a sweet taste.
Upon heating, it loses water to form a yellow-green powder of anhydrous nickel acetate.
Decomposes above 250°C and is soluble in water (17g/100mL at 20°C) and sparingly soluble in alcohol.
Chemical Properties:
Nickelous acetate crystallizes from solutions of the hydroxide in acetic acid at room temperature as the green tetrahydrate.
It has a distorted octahedral structure with the nickel atoms surrounded by four water molecules and two oxygens from two acetato groups, which are trans to each other.
Its magnetic moment is 3.30 BM at room temperature.
The anhydrous form is obtained by dehydration of the tetrahydrate in vacuo or by heating the tetrahydrate under reflux with acetic anhydride.
Upon thermal decomposition in nitrogen (or in vacuo) at 300°, it evolves acetone, acetic acid, carbon monoxide, carbon dioxide, and water, leaving nickel and N13C.
Nickelous acetate forms green, monoclinic crystals and effloresces somewhat in air, being soluble in both water and alcohol.
Preparation
Nickel acetate is prepared by reacting nickel hydroxide or nickel carbonate with dilute acetic acid. The tetrahydrate is crystallized from solution.
Ni(OH)2 + 2CH3COOH → (CH3COO)2Ni + 2H2O
NiCO3 + 2CH3COOH → (CH3COO)2Ni + CO2 + 2H2O
On heating, the solution hydrolyzes depositing nickel hydroxide.
Air & Water Reactions
Water soluble.
Reactivity Profile
Nickelous acetate is a green, crystalline material, mildly toxic and carcinogenic. Combustible when exposed to heat or flame. When heated to decomposition Nickelous acetate emits acrid smoke and irritating fumes [Lewis, 3rd ed., 1993, p. 909].
Hazard
Toxic by ingestion, a carcinogen (OSHA).
Health Hazard
Inhalation causes irritation of nose and throat. Ingestion causes vomiting. Contact with eyes causes irritation. May cause dermatitis in contact with skin.
Flammability and Explosibility
Nonflammable
Safety Profile
Confirmed carcinogen
with experimental neoplastigenic and
tumorigenic data. Poison by ingestion,
intraperitoneal, and subcutaneous routes.
Experimental reproductive effects. Mutation
data reported. When heated to
decomposition it emits irritating fumes. See
also NICKEL COMPOUNDS.
Safety
Nickel salts are carcinogenic and irritate the skin.
Check Digit Verification of cas no
The CAS Registry Mumber 373-02-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,7 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 373-02:
(5*3)+(4*7)+(3*3)+(2*0)+(1*2)=54
54 % 10 = 4
So 373-02-4 is a valid CAS Registry Number.
InChI:InChI=1/C2H4O2.Ni/c1-2(3)4;/h1H3,(H,3,4);/q;+2/p-1
373-02-4Relevant articles and documents
Late-Stage Derivatization of Buflavine by Nickel-Catalyzed Direct Substitution of a Methoxy Group via C-O Bond Activation
Shimazumi, Ryoma,Morita, Kosuke,Yoshida, Tomoki,Yasui, Kosuke,Tobisu, Mamoru
, p. 3037 - 3044 (2021/05/06)
The nickel-catalyzed cross-coupling of methoxyarenes was applied to buflavine, which allows for the selective monosubstitution of one of the two methoxy groups in the molecule, leading to the formation of 2- and 3-substituted isomers. Trimethylsilylmethyl (TMSCH 2), phenyl, and alkynyl groups can be introduced into buflavine using this method. The resulting TMSCH 2analogue of buflavine can also be converted into several other derivatives.
Synthesis and characterization of unique nickel(II) carboxylates and their coordination complexes
Shavina,Singh, Baljit
, p. 416 - 420 (2018/01/12)
Direct anodic dissolution of nickel metal and cathodic reduction of carboxylic acids (RCOOH) in acetonitrile has proved to be a simple and efficient one-step route to synthesize unique polymeric nickel(II) carboxylate complexes, {Ni(OOCR)2}n in H-type glass Pyrex cell. When the oxidation was carried out in the presence of neutral ligands (L) such as 2,2’-bipyridyl or 1,10-phenanthroline, the complexes of type {Ni(OOCR)2.L}n were obtained. Tetrabutylammonium chloride has been used as a supporting electrolyte in order to increase the electrolytic conductivity of the electrochemical system which in turn affects the current efficiency, cell voltage and energy consumption in the electrolytic cell. The complexes have been characterized by vibrational spectra, CHN elemental analysis, solubility and melting points shows a good agreement with the structure. The result also shows that the direct electrochemical synthetic technique has high current efficiency, extra purity and yield.
Preparation method of battery grade nickel acetate
-
Paragraph 0038; 0041; 0042; 0043, (2017/08/29)
The invention relates to a preparation method of battery grade nickel acetate, and aims at providing a preparation method of battery grade nickel acetate, which is simple in production principle and wide in raw material source and facilitates industrial production. The preparation method of the battery grade nickel acetate comprises the following steps: metallic nickel powder and an acid copper chloride solution react, impurity removal and evaporation are carried out, and NiCl2 is obtained; NiCl2 is mixed with a sodium hydroxide solution fully, after filtration, Ni(OH)2 is obtained, nickelous hydroxide is washed and then is acidified by acetic acid, and nickel acetate is generated finally. The nickel acetate prepared by the preparation method is high in purity. The preparation method is applied to the technical field of chemical production.
