Nickel(2+) sulfate

NiO4S

nickel(2+) sulfate

CAS7786-81-4
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
7786-81-4
EC Number
232-104-9
UN Number
3288
Index Number
028-009-00-5
PubChem CID
24586

Physical-chemical properties

Molecular Formula
NiO4S
Molar Mass
154.76 g/mol
IUPAC Name
nickel(2+) sulfate

Chemical Identifiers

InChI
InChI=1S/Ni.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
InChI Key
LGQLOGILCSXPEA-UHFFFAOYSA-L

Overview

Nickel(2+) sulfate (CAS 7786-81-4) is an inorganic sulfate salt with high water solubility and significant industrial applications. This crystalline compound, with the molecular formula NiO4S and a molecular weight of 154.76 g/mol, represents one of the most commercially important nickel compounds in industrial chemistry. Nickel(2+) sulfate typically appears as green or blue-green crystals that dissolve readily in water, forming characteristic green solutions. The compound exists in various hydrated forms, with the hexahydrate and heptahydrate being the most common commercial variants. From a safety perspective, nickel(2+) sulfate requires careful handling due to its classification as a Category 1A carcinogen and Category 1B reproductive toxicant. The compound exhibits respiratory sensitization properties and can cause skin irritation upon contact. Its GHS pictograms include GHS08 (health hazard), GHS07 (harmful), and GHS09 (environmental hazard), reflecting its potential for serious health effects and environmental impact. Transport regulations classify it under ADR Class 6.1 as a toxic substance. Industrial applications of nickel(2+) sulfate are diverse and significant. The electroplating industry utilizes this compound extensively for nickel plating processes, where it serves as the primary nickel source in electrolytic baths. The chemical manufacturing sector employs nickel(2+) sulfate as a precursor for producing other nickel compounds, including nickel(2+) dihydroxide and nickel(2+) carbonate, which find applications in battery manufacturing and catalysis. Additionally, the compound functions as a catalyst in various chemical processes and serves as a micronutrient in specialized fertilizer formulations. OYSI maintains reliable supplies of technical-grade nickel(2+) sulfate to support diverse industrial requirements across European markets.

Safety & Classification

Danger
Classification:

Carc. 1A; Muta. 2; Repr. 1B; Acute Tox. 4 *; Acute Tox. 4 *; STOT RE 1; Skin Irrit. 2; Resp. Sens...

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H341

Suspected of causing genetic defects.

H332

Harmful if inhaled.

H302

Harmful if swallowed.

H372

Causes damage to organs through prolonged or repeated exposure.

H315

Causes skin irritation.

H334

May cause allergy or asthma symptoms or breathing difficulties if inhaled.

H317

May cause an allergic skin reaction.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number3288
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping NameNickelsulfat
Marine PollutantNo

Frequently Asked Questions

What is nickel(2+) sulfate?

Nickel(2+) sulfate is an inorganic chemical compound with the formula NiO4S and CAS number 7786-81-4. It has a molecular weight of 154.76 g/mol and appears as a crystalline solid. This compound is classified as a dangerous substance with multiple hazard classifications including carcinogenic (Carc. 1A), mutagenic (Muta. 2), and reproductive toxicity (Repr. 1B) properties. It requires careful handling due to its significant health and environmental risks.

What are the physicochemical properties of nickel(2+) sulfate?

Nickel(2+) sulfate is typically a green crystalline solid that is highly soluble in water. The compound forms various hydrated forms, with the hexahydrate and heptahydrate being most common. It has good thermal stability under normal conditions but decomposes at high temperatures. The substance is odorless and has a bitter metallic taste. Its high water solubility makes it readily bioavailable, contributing to its toxicological concerns.

What is nickel(2+) sulfate used for?

Nickel(2+) sulfate is primarily used in electroplating processes for depositing nickel coatings on metal surfaces. It serves as a key component in nickel electroplating baths for automotive, electronics, and decorative applications. The compound is also used in the production of nickel catalysts, as a mordant in textile dyeing, and in the manufacturing of other nickel compounds. Additionally, it finds applications in battery production and as a precursor for nickel-based materials.

How to handle nickel(2+) sulfate safely?

Nickel(2+) sulfate requires strict safety measures including wearing appropriate personal protective equipment: chemical-resistant gloves, safety goggles, and respiratory protection to prevent inhalation. Work should be conducted in well-ventilated areas or under fume hoods due to respiratory sensitization risks. Avoid skin contact and ingestion. Use non-sparking tools and ensure proper grounding to prevent static discharge. Regular health monitoring is recommended for workers due to carcinogenic properties.

How to store nickel(2+) sulfate correctly?

Nickel(2+) sulfate should be stored in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizers and reducing agents. Keep containers tightly closed and properly labeled according to GHS requirements. Store away from heat sources, direct sunlight, and moisture to prevent degradation. Ensure storage areas are equipped with appropriate spill containment measures and emergency response equipment. Segregate from food, feed, and consumer products.

What to do in case of contact with nickel(2+) sulfate?

Nickel(2+) sulfate contact requires immediate action: for skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention if breathing difficulties occur. For eye contact, flush with water for at least 15 minutes and remove contact lenses if present. If ingested, do not induce vomiting and seek immediate medical attention. Always consult a physician in case of exposure.

How to dispose of nickel(2+) sulfate appropriately?

Nickel(2+) sulfate disposal must comply with local and national hazardous waste regulations as it contains heavy metals. The substance cannot be disposed of in regular waste streams and requires specialized hazardous waste treatment facilities. Collect waste in appropriate containers, properly labeled for heavy metal content. Contact licensed waste disposal companies for proper treatment and disposal. Recovery and recycling of nickel content may be possible through specialized facilities, making this an environmentally preferred option.

How to transport nickel(2+) sulfate?

Nickel(2+) sulfate is classified under ADR Class 6.1 (toxic substances), Packing Group III for transportation. It requires appropriate UN specification packaging and proper hazard labeling including GHS08, GHS07, and GHS09 pictograms. Transport documents must include proper shipping names and hazard classifications. Vehicles should be equipped with appropriate emergency equipment and drivers must have ADR training. Ensure packages are secured and protected from damage during transit.

Is nickel(2+) sulfate subject to specific regulations?

Nickel(2+) sulfate is subject to extensive regulatory controls under REACH, CLP, and other European legislation due to its hazardous properties. It requires registration under REACH for commercial use and is subject to classification and labeling requirements under CLP regulation. The substance may be subject to authorization procedures and restrictions on certain uses due to its carcinogenic and reproductive toxicity properties. Occupational exposure limits and health surveillance requirements apply in workplace settings.

Where to buy nickel(2+) sulfate in Europe?

Nickel(2+) sulfate is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides high-quality nickel(2+) sulfate with proper documentation, safety data sheets, and regulatory compliance for industrial customers across Europe. As a professional chemical distributor, OYSI ensures proper packaging, labeling, and transport arrangements according to ADR and other relevant regulations. Contact OYSI directly for specific grades, quantities, and technical support for your nickel sulfate requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.