Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur Cas No.: 5808-22-0 25 gr

Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur Cas No.: 5808-22-0 25 gr

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Analitik Kimyasallar , Kimyasallar
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K1RN69FBY9
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Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur 25 gr
Catalogue Number 102498
Replaces DX1460-1
Synonyms 4,5-Dihydroxy-2,7-naphthalene disulfonic acid sodium salt
Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur 25 gr 
Product Information
CAS number 5808-22-0
EC number 204-972-9
Grade ACS,Reag. Ph Eur
Hill Formula C₁₀H₆Na₂O₈S₂ * 2 H₂O
Molar Mass 400.29 g/mol
HS Code 2908 99 00
Structure formula Image Structure formula Image
Quality Level MQ200
Physicochemical Information
Melting Point 300 °C
pH value 3.6 (10 g/l, H₂O, 20 °C)
Bulk density 780 kg/m3
Solubility 170 g/l
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s) H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) P261: Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P264: Wash skin thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear protective gloves/ eye protection/ face protection.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Warning
Storage class 10 - 13 Other liquids and solids
WGK WGK 3 highly hazardous to water
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Storage and Shipping Information
Storage Store below +30 °C.
Transport Information
Declaration (railroad and road) ADR, RID Kein Gefahrgut
Declaration (transport by air) IATA-DGR No Dangerous Good
Declaration (transport by sea) IMDG-Code No Dangerous Good
Specifications
Appearance greyish white to brownish white powder
Assay (acidimetric, calc. on anhydrous substance) ≥ 98.5 %
Identity (IR-spectrum) passes test
Appearance of solution (5 %; water) passes test
Water (according to Karl Fischer) 8.5 - 9.5 %
Sensitivity (of formaldehyde) passes test
Sensitivity (of nitrate) passes test
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Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur Cas No.: 5808-22-0 25 gr K1RN69FBY9
Merck 102498 Chromotropic acid disodium salt dihydrate for analysis ACS, Reag. Ph Eur Cas No.: 5808-22-0 25 gr

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