Cobalt Chloride CAS 7646-79-9

Longchang source page for Cobalt Chloride CAS 7646-79-9. Before qualification or quotation, confirm whether the requirement is anhydrous CoCl₂ or a hydrated form, because the old page mixed an anhydrous CAS/formula with color and cobalt-content fields that may reflect a hydrate basis. Send the required form, specification, methods, quantity, packaging and destination to request current identity confirmation, an applicable lot COA, SDS status, sample availability, MOQ, current availability, quotation validity and confirmed lead time.

Public identity fields for CAS 7646-79-9

NIST, PubChem and ECHA support these public identity fields. They do not establish a current Longchang hydrate state, purity, grade, appearance, specification, lot result, stock status, regulatory suitability or process performance.

Form and hydrate must be confirmed

The cobalt fractions are formula-mass calculations, not a current assay, purity limit or lot result. A quotation must match the requested form, CAS, test method, calculation basis and acceptance limits.

Information to request for qualification

Historical source-record fields requiring confirmation

The earlier product page displayed the following fields without a visible current controlled specification number, full method set, identified lot, effective date or approval status. They are historical RFQ context only—not current specifications, lot results, grade definitions or supply commitments.

The old structure image returned HTTP 404 and is removed. Use authoritative identity links and current controlled documents rather than a missing legacy image.

Application and regulatory boundary

ECHA records cobalt dichloride in surface-treatment, pigment/frit, glass, ceramic, varistor, magnet and humidity-indicator contexts. These records do not establish that the requested Longchang material is suitable, authorized or effective for a buyer’s process. Battery, catalyst, laboratory, food, feed, medical, pharmaceutical or consumer-product contexts require exact form, composition, process evidence, exposure assessment and market-specific quality/regulatory review.

Safety and handling boundary

ECHA lists cobalt dichloride on the REACH Candidate List for carcinogenicity and reproductive toxicity and states that the entry covers anhydrous and hydrated forms. This webpage is not an SDS and does not provide site-specific handling, storage, first-aid, transport or disposal instructions. Request the current supplier SDS and use it with the buyer’s process, exposure scenario, destination rules and risk assessment.

Read the Cobalt Chloride guides

• Read What is cobalt chloride? CoCl2 formula, uses and safety for the primary identity, naming, use-context and regulatory answer.
• Read Cobalt chloride anhydrous vs hexahydrate for CAS, formula, molecular-weight, theoretical-cobalt and color comparisons.

Request a specification, COA, SDS or sample

E-mail info@longchangchemical.com and include:

• required anhydrous or hydrate form, CAS, formula and identity methods;
• cobalt/assay calculation basis and required tests, methods, units and limits;
• intended process, quality standard, exposure scenario and destination market;
• sample quantity, full quantity, packaging constraints and destination;
• required documents, declarations and requested delivery window.