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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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Size/SKUAvailabilityPrice
25 g
0 left in stock
$74.60

About This Item

Empirical Formula (Hill Notation):
C30H15FeN3Na3O15S3
CAS Number:
Molecular Weight:
878.46
UNSPSC Code:
12352107
EC Index Number:
243-010-2
NACRES:
NA.21
MDL number:

$74.60


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Product Name

Naphthol green B (C.I. 10020), indicator

Quality Segment

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

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

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 %

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This Item
0673778364B4014
description

indicator

description

analytical standard

description

analytical standard

description

certified by the BSC

loss

≤10% loss on drying, 105°C

loss

-

loss

-

loss

-

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

room temp

solubility

160 g/L

solubility

-

solubility

-

solubility

H2O: 1 mg/mL, blue

bulk density

620 kg/m3

bulk density

-

bulk density

-

bulk density

-

pH

9.3 (20 °C, 10 g/L in H2O)

pH

-

pH

-

pH

-

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

200


Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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