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

Cr2H8N2O7

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

CAS7789-09-5
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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 chromium-based inorganic compound with strong oxidizing properties and significant toxicological hazards. This hexavalent chromium compound, with the molecular formula Cr2H8N2O7 and a molecular weight of 252.07 g/mol, represents one of the most hazardous chromium derivatives commonly encountered in industrial applications. The substance is classified under multiple danger categories including carcinogenic (1B), mutagenic (1B), and reproductive toxicity (1B), reflecting the severe health risks associated with hexavalent chromium compounds. Its classification as an oxidizing solid (Class 2) and acute toxicity ratings across multiple exposure routes underscore the critical importance of proper handling protocols. The compound's molecular structure contains chromium in its +6 oxidation state, which accounts for its potent oxidizing characteristics and biological reactivity. This oxidation state is responsible for the compound's ability to penetrate cellular membranes and cause DNA damage, leading to its carcinogenic and mutagenic properties. The presence of ammonium cations in the structure influences its solubility and stability characteristics compared to related compounds like disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium. Primary industrial applications include specialized oxidation reactions in organic synthesis, certain electroplating processes where controlled chromium deposition is required, and as an analytical reagent in laboratory settings. The compound also finds limited use in specific pigment manufacturing processes, though its toxicity has led to significant restrictions in consumer applications. Due to its extreme hazard profile, this substance requires specialized handling, storage, and disposal protocols in compliance with international chemical safety regulations. OYSI maintains availability of this regulated compound for qualified industrial customers with appropriate safety infrastructure and regulatory compliance.

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 an inorganic chromium 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 oxidized form. It is classified as a highly hazardous chemical substance with multiple danger classifications including carcinogenic, mutagenic, and reproductive toxicity properties, requiring careful handling and specialized safety measures.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is a chromium-containing compound with molecular formula Cr2H8N2O7 and molecular mass of 252.07 g/mol. As a chromium-based inorganic salt, it typically appears as a crystalline solid. The compound contains both chromium and nitrogen components in its structure. Specific physical properties such as melting point, density, and solubility characteristics should be verified from technical data sheets for precise handling requirements.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is used in specialized industrial applications involving chromium chemistry. As an oxidizing solid (Class 2), it may be employed in chemical synthesis, catalytic processes, or as an intermediate in chromium compound production. Its specific applications are limited due to its high toxicity profile including carcinogenic, mutagenic, and reproductive toxicity properties. Industrial use requires strict safety protocols and specialized handling procedures in controlled environments.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium requires maximum safety precautions due to its carcinogenic, mutagenic, and acute toxicity properties. Essential PPE includes respiratory protection, chemical-resistant gloves, protective clothing, and eye protection. Work must be conducted in well-ventilated areas or under fume extraction systems. Avoid skin contact, inhalation, and ingestion. Implement strict hygiene measures, decontamination procedures, and emergency response protocols. Only trained personnel should handle this substance following comprehensive safety training.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium must be stored as an oxidizing solid (Class 5.1) in a cool, dry, well-ventilated area away from incompatible materials. Keep containers tightly sealed and separate from combustible materials, reducing agents, and organic substances. Storage areas should be secure, accessible only to authorized personnel, and equipped with appropriate emergency equipment. Implement inventory control systems and regular container inspection procedures. Ensure compliance with local regulations for hazardous substance storage.

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

Immediate first aid for diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium exposure requires prompt action due to its high toxicity. For skin contact, remove contaminated clothing and rinse thoroughly with water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, flush with water for 15 minutes. Do not induce vomiting if ingested. Seek immediate medical attention in all cases, informing medical personnel of the substance's carcinogenic and toxic properties. Keep safety data sheet available for medical consultation.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium disposal must comply with hazardous waste regulations due to its carcinogenic and toxic properties. This substance requires treatment as hazardous waste and cannot be disposed of in regular waste streams. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Maintain detailed waste documentation and manifests. Consider waste minimization strategies and potential recovery options where feasible. Ensure compliance with local, national, and EU waste regulations including proper waste coding and classification.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is classified under ADR Class 5.1 (Oxidizing substances) Packing Group II, requiring specialized transport procedures. Packaging must meet UN specification standards for oxidizing solids and display appropriate hazard labels and markings. Transport vehicles need proper segregation from incompatible goods and emergency equipment. Drivers require ADR certification and hazardous goods training. Shipping documentation must include proper shipping names, hazard classifications, and emergency response information following international dangerous goods regulations.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is subject to extensive regulatory controls under EU REACH and CLP regulations due to its carcinogenic, mutagenic, and reproductive toxicity classifications. While not currently listed as an SVHC, it requires comprehensive risk assessments, exposure scenarios, and safety data sheets. Industrial users must implement appropriate risk management measures and may face restrictions on certain applications. Compliance with occupational exposure limits, waste regulations, and transport classifications is mandatory. Regular regulatory monitoring is essential as restrictions may evolve.

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

Diazanium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium is available through OYSI, a specialized European distributor of technical chemical products. As a highly regulated substance with carcinogenic properties, procurement requires verification of legitimate industrial use, appropriate safety infrastructure, and regulatory compliance. OYSI provides technical support, safety documentation, and ensures proper packaging and transport according to ADR regulations. Contact OYSI's technical team to discuss specific requirements, quantities, and delivery arrangements for this controlled chemical substance.

Data Sources

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