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For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
1.04594
Calcon (C.I.15705)
metal indicator
Synonym(s):
Calcon (C.I.15705), 2-Hydroxy-1-(2-hydroxy-1-naphthylazo)naphthalene-4-sulfonic acid sodium salt
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
50 g | Estimated to ship TODAY | $89.40 |
About This Item
Product Name
Calcon (C.I.15705), metal indicator
Quality Segment
form
solid
loss
≤10% loss on drying, 110°C
pH
9.4 (25 °C, 10 g/L in H2O)
solubility
20 g/L
bulk density
530 kg/m3
λmax
634-640 nm (buffer pH 12.2)
storage temp.
2-30°C
SMILES string
[Na+].[S](=O)(=O)([O-])C1=CC(=O)\C(=N\Nc3c4c(ccc3O)cccc4)\c2c1cccc2
InChI
1S/C20H14N2O5S.Na/c23-16-10-9-12-5-1-2-6-13(12)19(16)21-22-20-15-8-4-3-7-14(15)18(11-17(20)24)28(25,26)27;/h1-11,21,23H,(H,25,26,27);/q;+1/p-1/b22-20+;
InChI key
YJUGDMOGPJJWDG-QPNALZDCSA-M
Analysis Note
Absorption maximum λmax. (buffer pH 12.2): 634 - 640 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.015 g/l; buffer pH 12.2; calculated on dried substance): 250 - 400
Loss on drying (110 °C): ≤ 10 %
Suitability as indicator (for metal titration): passes test
1 of 1
This Item | |||
|---|---|---|---|
| bulk density 530 kg/m3 | bulk density - | bulk density 400 kg/m3 | bulk density - |
| storage temp. 2-30°C | storage temp. - | storage temp. 2-30°C | storage temp. - |
| loss ≤10% loss on drying, 110°C | loss - | loss - | loss - |
| form solid | form powder and chunks | form solid | form powder |
| pH 9.4 (25 °C, 10 g/L in H2O) | pH - | pH - | pH - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level - |
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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