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Key Documents

1.01306

Supelco

Naphthol green B (C.I. 10020)

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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

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 %

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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