Product Information
Biological Information
Physicochemical Information
Melting Point>360 °C
pH value6.7 (10 g/l, H₂O, 20 °C)
Vapor pressure<1 Pa
Bulk density600 - 700 kg/m3
Solubility25 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 143 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H350: May cause cancer.
H361d: Suspected of damaging the unborn child.
Precautionary Statement(s)P201: Obtain special instructions before use.
P308 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal WordDanger
Storage class6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGKWGK 3 highly hazardous to water
Safety Information
Hazard Symbols Hazard SymbolsToxic
Categories of dangercarcinogenic, toxic for reproduction
R PhraseR 45-63
May cause cancer.Possible risk of harm to the unborn child.
S PhraseS 53-45
Avoid exposure - obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Product Usage Statements
Storage and Shipping Information
StorageStore at +5°C to +30°C.
Packaging Information
Transport Information
Declaration (railroad and road) ADR, RIDKein Gefahrgut
Declaration (transport by air) IATA-DGRNo Dangerous Good
Declaration (transport by sea) IMDG-CodeNo Dangerous Good
Supplemental Information
Identity (UV/VIS-Spectrum)passes test
Appearance of solution (1 g/l; water)passes test
Transition rangepH 3.0 - pH 5.2 violet - orange-red
Absorption maximum λ 1 max. (buffer pH 3.0)563 - 568 nm
Absorption maximum λ 2 max. (buffer pH 5.2)484 - 489 nm
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 3.0; calc. on dried substances)≥ 150
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 5.2; calc. on dried substances)≥ 200
Loss on drying (110 °C)≤ 5 %
Sensitivity testpasses test


Congo red (C.I. 22120) SDS


Safety Data Sheet (SDS) 

Congo red (C.I. 22120) Certificates of Analysis

Product Number PackagingSpecificationLot Number
1013400025 Glass bottlePDF Specification Document

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