Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium

Cr2H8N2O7

diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium

CAS7789-09-5
GHS03 Gefahrensymbol: Brandfördernd – Flamme über Kreis
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
7789-09-5
EC Number
232-143-1
UN Number
1439
Index Number
024-003-00-1
PubChem CID
24600

Physical-chemical properties

Molecular Formula
Cr2H8N2O7
Molar Mass
252.07 g/mol
IUPAC Name
diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium

Chemical Identifiers

InChI
InChI=1S/2Cr.2H3N.7O/h;;2*1H3;;;;;;;/q;;;;;;;;;2*-1/p+2
InChI Key
JOSWYUNQBRPBDN-UHFFFAOYSA-P

Overview

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium (CAS 7789-09-5) is a hexavalent chromium compound with strong oxidizing properties and significant toxicological hazards. This technical grade chemical substance, also known by its EC number 232-143-1, represents a specialized chromium-based compound with the molecular formula Cr2H8N2O7 and a molecular weight of 252.07 g/mol. The compound belongs to the family of hexavalent chromium materials, sharing structural similarities with other chromium oxides such as trioxochromium, though with distinct ammonium-based characteristics that influence its chemical behavior and applications. The substance exhibits powerful oxidizing properties, classified as Oxidizing Solid Category 2 under GHS regulations. Its hazard profile is extensive, encompassing carcinogenic (Category 1B), mutagenic (Category 1B), and reproductive toxicity (Category 1B) classifications, alongside acute toxicity concerns across multiple exposure routes. The assignment of five GHS pictograms (GHS03, GHS08, GHS06, GHS05, GHS09) and the "Danger" signal word reflects its serious health and safety implications. Transportation falls under ADR Class 5.1, indicating its oxidizing nature requires specialized handling protocols. Industrial applications typically leverage its oxidizing capabilities in specialized chemical processes, metal treatment operations, and certain catalytic systems where controlled hexavalent chromium chemistry is required. The compound may also find use in analytical chemistry applications and research environments studying chromium oxidation states, particularly in comparison with related compounds like disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium. OYSI maintains technical-grade availability of this specialized chromium compound for qualified industrial customers with appropriate handling capabilities and regulatory compliance frameworks.

Safety & Classification

Danger
Classification:

Ox. Sol. 2 ****; Carc. 1B; Muta. 1B; Repr. 1B; Acute Tox. 2 *; Acute Tox. 4 *; Acute Tox. 3 *; ST...

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H272

May intensify fire; oxidiser.

H350

May cause cancer.

H340

May cause genetic defects.

H330

Fatal if inhaled.

H312

Harmful in contact with skin.

H301

Toxic if swallowed.

H372

Causes damage to organs through prolonged or repeated exposure.

H314

Causes severe skin burns and eye damage.

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

Fatal

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

Harmful

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:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Toxic

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 Number1439
ADR Class5.1
Packing GroupII
Tunnel CodeE
Proper Shipping NameAmmoniumdichromat
Marine PollutantNo

Frequently Asked Questions

What is diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium?

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is a chromium-based chemical compound with CAS number 7789-09-5 and molecular formula Cr2H8N2O7. This substance has a molecular weight of 252.07 g/mol and contains chromium in its structure, making it a hazardous material classified under multiple danger categories including carcinogenic, mutagenic, and reproductive toxicity properties.

What are the physicochemical properties of diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium?

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is a solid compound with molecular formula Cr2H8N2O7 and molecular weight 252.07 g/mol. As a chromium-containing compound, it typically appears as a crystalline solid. The substance exhibits oxidizing properties (Ox. Sol. 2) and contains both chromium and nitrogen components in its molecular structure, contributing to its chemical reactivity and hazardous nature.

What is diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium used for?

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is primarily used as an oxidizing agent in various chemical processes and industrial applications. Its strong oxidizing properties make it valuable in chemical synthesis, analytical chemistry, and specialized industrial processes. However, due to its severe health hazards including carcinogenic, mutagenic, and reproductive toxicity properties, its use is strictly regulated and limited to professional applications with appropriate safety measures.

How to handle diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium safely?

Safe handling requires comprehensive personal protective equipment including respiratory protection, chemical-resistant gloves, protective clothing, and eye protection. Work must be conducted in well-ventilated areas or under fume hoods due to acute toxicity risks. Avoid contact with skin, eyes, and inhalation of dust or vapors. Only trained personnel should handle this substance, and emergency procedures must be readily available given its carcinogenic and mutagenic properties.

How to store diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium correctly?

Store in a cool, dry, well-ventilated area away from incompatible materials, particularly combustible substances and reducing agents due to its oxidizing properties (Class 5.1). Keep containers tightly sealed and in original packaging. Storage areas must be secure with restricted access due to the substance's carcinogenic and mutagenic properties. Maintain appropriate fire suppression systems and ensure compatibility with storage materials to prevent reactions.

What to do in case of contact with diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium?

Immediate decontamination is crucial due to acute toxicity. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. For eye contact, flush immediately with water for 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. Seek immediate medical attention in all cases, informing medical personnel of the substance's carcinogenic and mutagenic properties for appropriate treatment.

How to dispose of diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium appropriately?

Disposal must comply with local, national, and EU waste regulations as a hazardous waste containing chromium compounds. This substance requires specialized disposal through licensed hazardous waste contractors due to its carcinogenic, mutagenic, and environmental hazard properties. Never dispose of through regular waste streams or sewage systems. Contact certified waste management companies experienced in handling chromium-containing compounds for proper treatment and disposal according to regulatory requirements.

How to transport diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium?

Transportation is classified under ADR Class 5.1 (Oxidizing Substances), Packing Group II, requiring appropriate dangerous goods packaging and labeling. Vehicles must display proper placards and carry safety documentation. Only certified dangerous goods transporters can handle shipments. Packaging must meet UN specifications for oxidizing substances and prevent contamination or reaction during transport. Emergency response information must accompany shipments for incident management.

Is diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium subject to specific regulations?

Yes, this substance is subject to extensive EU regulations under REACH and CLP due to its classification as carcinogenic (1B), mutagenic (1B), and toxic for reproduction (1B). It requires safety data sheets, hazard communication, and may have use restrictions. Additional regulations may apply for occupational exposure limits, environmental protection, and transportation. Companies must ensure compliance with worker protection regulations and may require special authorization for certain uses.

Where to buy diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium in Europe?

OYSI serves as a reliable European distributor for diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium, providing professional-grade chemicals to qualified industrial customers. Due to the substance's hazardous classification and regulatory requirements, purchases are restricted to professional users with appropriate handling capabilities and safety infrastructure. OYSI ensures proper documentation, packaging, and compliance with European chemical regulations for safe distribution throughout the European market.

Data Sources

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