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
Empirical Formula (Hill Notation):
C30H15FeN3Na3O15S3
CAS Number:
Molecular Weight:
878.46
MDL number:
UNSPSC Code:
12352107
EC Index Number:
243-010-2
NACRES:
NA.21
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product name
Naphthol green B (C.I. 10020), indicator
Quality Level
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
Related Categories
Analysis Note
Identity (UV/VIS-Spectrum): passes test
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 %
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_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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