1.01306
Naphthol green B (C.I. 10020)
pH indicator
Synonym(s):
Naphthol green B (C.I. 10020), Green acid 1
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About This Item
Product Name
Naphthol green B (C.I. 10020), indicator
SMILES string
[Fe](Oc5c(c6c(cc(cc6)[S](=O)(=O)[O-])cc5)N=O)(Oc3c(c4c(cc(cc4)[S](=O)(=O)[O-])cc3)N=O)Oc1c(c2c(cc(cc2)[S](=O)(=O)[O-])cc1)N=O.[Na+].[Na+].[Na+]
InChI
1S/3C10H7NO5S.Fe.3Na/c3*12-9-4-1-6-5-7(17(14,15)16)2-3-8(6)10(9)11-13;;;;/h3*1-5,12H,(H,14,15,16);;;;/q;;;+3;3*+1/p-6
InChI key
JMXROTHPANUTOJ-UHFFFAOYSA-H
form
solid
loss
≤10% loss on drying, 105°C
pH
9.3 (20 °C, 10 g/L in H2O)
solubility
160 g/L
bulk density
620 kg/m3
λmax
710-720 nm in water
storage temp.
2-30°C
Quality Level
Related Categories
Analysis Note
Absorption maximum λmax. (water): 710 - 720 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.05g/l; water; calc. on dried substance): ≥ 100
Loss on Drying (105°C): ≤ 10 %
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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