Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Congo red
- Product Code
- 0322
- Chemical Name
- Congo red
- Synonyms
- Disodium-3,3'[[1,1-biphenyl]-4,4'diyl(bis(azo)]bis(4-aminonaphthalin-1-sulfonate), Direct Red 28
Regulatory Identifiers
- CAS Number
- 573-58-0 Check regulations →
- EC Number
- 209-358-4 Check regulations →
Identified Uses
Laboratory chemical Laboratory and analytical use
Uses advised against
Do not use for products which come into contact with foodstuffs. Do not use for private purposes (household). Food, drink and animal feedingstuffs.
Manufacturers & Suppliers
Carl Roth GmbH + Co. KG
manufacturer
Schoemperlenstr. 3-5 D-76185 Karlsruhe Germany
+49 (0) 721 - 56 06 0
http://www.carlroth.de
Emergency Contacts
National Poisons Information Centre Beaumont Hospital
+353 1 809 2166
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
GHS08
Hazard Statements
Precautionary Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
Name of substance Congo red Molecular formula C₃₂H₂₂N₆Na₂O₆S₂ Molar mass 696,7[g] /mol CAS No 573-58-0 EC No 209-358-4 Index No 611-027-00-8
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Congo red EC: 209-358-4 | 573-58-0 | --- | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
Provide fresh air. In all cases of doubt, or when symptoms persist, seek medical advice.
Rinse skin with water/shower.
Rinse cautiously with water for several minutes. In all cases of doubt, or when symptoms persist, seek medical advice.
In case of accident or unwellness, seek medical advice immediately (show directions for use or safety data sheet if possible).
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
co-ordinate firefighting measures to the fire surroundings! water, foam, alcohol resistant foam, dry extinguishing powder, ABC-powder
water jet
Combustible.
Fight fire with normal precautions from a reasonable distance.
Firefighter Protection
Wear self-contained breathing apparatus.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Use personal protective equipment as required. Avoid contact with skin, eyes and clothes. Do not breathe dust.
Keep away from drains, surface and ground water. Retain contaminated washing water and dispose of it.
Take up mechanically.
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Avoid exposure. Avoid dust formation.
Store in a dry place.
Wash hands before breaks and after work. Keep away from food, drink and animal feedingstuffs.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Wear suitable gloves. Chemical protection gloves are suitable, which are tested according to EN 374. For special purposes, it is recommended to check the resistance to chemicals of the protective gloves mentioned above together with the supplier of these gloves. The times are approximate values from measurements at 22 ° C and permanent contact. Increased temperatures due to heated substances, body heat etc. and a reduction of the effective layer thickness by stretching can lead to a considerable reduction of the breakthrough time. If in doubt, contact manufacturer. At an approx. 1.5 times larger / smaller layer thickness, the respective breakthrough time is doubled / halved. The data apply only to the pure substance. When transferred to substance mixtures, they may only be considered as a guide. Type of material: NBR (Nitrile rubber). Material thickness: >0,11 mm. Breakthrough times of the glove material: >480 minutes (permeation: level 6)
Use safety goggle with side protection.
Respiratory protection necessary at: Dust formation. Particulate filter device (EN 143). P2 (filters at least 94 % of airborne particles, colour code: White).
Preventive skin protection (barrier creams/ointments) is recommended.
Keep away from drains, surface and ground water.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
The material is stable under normal ambient and anticipated storage and handling conditions of temperature and pressure.
The product in the delivered form is not dust explosion capable; the enrichment of fine dust however leads to the danger of dust explosion.
Violent reaction with: strong oxidiser
UV-radiation/sunlight.
There is no additional information.
Hazardous combustion products: see section 5.
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What other names is Congo red known by?
Congo red is also known as: Disodium-3,3'[[1,1-biphenyl]-4,4'diyl(bis(azo)]bis(4-aminonaphthalin-1-sulfonate), Direct Red 28
What is the hazard signal word for Congo red?
The signal word is danger.
What is the physical form of Congo red?
Congo red is a solid with red brown color. It has characteristic odor.
What is Congo red used for?
Laboratory chemical Laboratory and analytical use
What are the hazard statements for Congo red?
This substance has 2 hazard statements:
- H350: May cause cancer
- H361d: Suspected of damaging the unborn child
What is the melting point of Congo red?
The melting point is 360 °C and the boiling point is not determined.