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101322  Methyl orange (C.I. 13025)
indicator ACS,Reag. Ph Eur

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20 April 2014

loading
 
Product number Packaging Qty/Pk Quantity Price
1013220025  Glass bottle   25 g  loading
1013220100  Glass bottle   100 g  loading
1013221000  Metal can   1 kg  loading
Prices are subject to change without notice.
Product information
Grade ACS,Reag. Ph Eur
Synonyms 4-Dimethylaminoazobenzene-4'-sulfonic acid sodium salt, Gold orange, Helianthine, Orange III
Hill Formula C14H14N3NaO3S
HS Code 2927 00 00
EC number 208-925-3
Molar mass 327.34 g/mol
CAS number 547-58-0
Chemical and physical data
Solubility 5 g/l (20 °C)
Melting point >300 °C
Molar mass 327.34 g/mol
Bulk density 200 - 400 kg/m3
pH value 6.5 (5 g/l, H2O, 20 °C)
Safety information according to GHS
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 Word Danger
Hazard Pictogram(s)
Storage class 6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK WGK 3 highly water endangering
Disposal 9
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
R Phrase R 25
Toxic if swallowed.
S Phrase S 37-45
Wear suitable gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger toxic
Hazard Symbol
Toxic
Transport information
Declaration (railroad and road) ADR, RID UN 2811 Giftiger organischer fester Stoff, n.a.g.(METHYLORANGE), 6.1, III
Declaration (transport by sea) IMDG-Code UN 2811 TOXIC SOLID, ORGANIC, N.O.S.(METHYL ORANGE), 6.1, III
Declaration (transport by air) IATA-DGR UN 2811 TOXIC SOLID, ORGANIC, N.O.S.(METHYL ORANGE), 6.1, III
Toxicological data
LD 50 oral LD50 rat 60 mg/kg
Methyl orange (C.I. 13025), molecular structure

© Merck KGaA, Darmstadt, Germany, 2014


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