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101322 Methyl orange (C.I. 13025)

101322
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar MassGrade Value
547-58-0 208-925-3 C₁₄H₁₄N₃NaO₃S 327.34 g/mol ACS,Reag. Ph Eur

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      1013220100
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          1013221000
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              Description
              Catalogue Number101322
              Synonyms4-Dimethylaminoazobenzene-4'-sulfonic acid sodium salt, Gold orange, Helianthine, Orange III
              References
              Product Information
              CAS number547-58-0
              EC number208-925-3
              GradeACS,Reag. Ph Eur
              Hill FormulaC₁₄H₁₄N₃NaO₃S
              Molar Mass327.34 g/mol
              HS Code2927 00 00
              Structure formula ImageStructure formula Image
              Quality LevelMQ200
              Applications
              Biological Information
              Physicochemical Information
              Melting Point>300 °C
              pH value6.5 (5 g/l, H₂O, 20 °C)
              Bulk density200 - 400 kg/m3
              Solubility5 g/l
              Dimensions
              Materials Information
              Toxicological Information
              LD 50 oralLD50 Rat 60 mg/kg
              Safety Information according to GHS
              Hazard Pictogram(s) Hazard Pictogram(s)
              Hazard Statement(s)H301: Toxic if swallowed.
              Precautionary Statement(s)P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
              Signal WordDanger
              Storage class6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
              WGKWGK 2 obviously hazardous to water
              Disposal9
              Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
              Safety Information
              Hazard Symbols Hazard SymbolsToxic
              Categories of dangertoxic
              R PhraseR 25
              Toxic if swallowed.
              S PhraseS 37-45
              Wear suitable gloves.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 +2°C to +30°C.
              Packaging Information
              Transport Information
              Declaration (railroad and road) ADR, RIDUN 3143 , 6.1, III
              Declaration (transport by air) IATA-DGRUN 3143 , 6.1, III
              Declaration (transport by sea) IMDG-CodeUN 3143 , 6.1, III
              Supplemental Information
              Specifications
              Identity (UV/VIS-Spectrum)passes test
              Clarity of solution (1 g/l; water)passes test
              Transition rangepH 3.1 - pH 4.4 pink - orange yellow
              Absorption maximum λ 1 max. (buffer pH 3.1)501 - 505 nm
              Absorption maximum λ 2 max. (buffer pH 4.4)466 - 471 nm
              Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 3.1; calc. on dried substances) 1000 - 1150
              Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 4.4; calc. on dried substances)730 - 850
              Loss on drying (110 °C)≤ 5 %
              Transition range (according to ACS)passes test
              Sensitivity testpasses test