1.06161
Murexide
metal indicator, ACS
Synonym(s):
Murexide, Ammonium purpurate, acid
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About This Item
Linear Formula:
C8H8N6O6
CAS Number:
Molecular Weight:
284.19
UNSPSC Code:
12352107
EC Index Number:
221-266-6
NACRES:
NB.21
MDL number:
Product Name
Murexide, (ammonium purpurate) metal indicator ACS
grade
ACS reagent
Quality Segment
form
solid
loss
≤2.0% loss on drying, 105°C
pH
5 (20 °C, 1 g/L in H2O)
solubility
1 g/L
bulk density
330 kg/m3
Amax
520-524 nm in water
storage temp.
2-30°C
SMILES string
[N+H4].N1C(=O)NC(=O)[C-](C1=O)N=C2C(=O)NC(=O)NC2=O
InChI
1S/C8H4N5O6.H3N/c14-3-1(4(15)11-7(18)10-3)9-2-5(16)12-8(19)13-6(2)17;/h(H2,10,11,14,15,18)(H2,12,13,16,17,19);1H3/q-1;/p+1
InChI key
PCCZWUCAYILEMX-UHFFFAOYSA-O
Analysis Note
Identity (IR-spectrum): passes test
Identity (UV/VIS-Spectrum): passes test
Absorption maximum (water): 520 - 524 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; water): ≥ 300
Sulfated ash (800 °C): ≤ 1.0 %
Loss on Drying (105°C): ≤ 2.0 %
Suitability as indicator (for metal titration): passes test
Identity (UV/VIS-Spectrum): passes test
Absorption maximum (water): 520 - 524 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; water): ≥ 300
Sulfated ash (800 °C): ≤ 1.0 %
Loss on Drying (105°C): ≤ 2.0 %
Suitability as indicator (for metal titration): passes test
Other Notes
Replaces: MX1665-3; MX1665
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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