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About This Item
Empirical Formula (Hill Notation):
C4H4N2O3
CAS Number:
Molecular Weight:
128.09
UNSPSC Code:
12352115
EC Index Number:
200-658-0
NACRES:
NA.21
MDL number:
Assay:
≥99% (acidimetric)
Form:
solid
Quality Level
product line
EMSURE®
assay
≥99% (acidimetric)
form
solid
potency
>5000 mg/kg LD50, oral (Rat)
sulfated ash
≤0.1%
loss
≤0.1% loss on drying, 105°C
pH
2-3 (60 °C, 50 g/L in H2O)
mp
250-252 °C (decomposition)
solubility
11.45 g/L
bulk density
720 kg/m3
anion traces
chloride (Cl-): ≤40 ppm
cation traces
Fe: ≤10 ppm, heavy metals (as Pb): ≤50 ppm
storage temp.
15-25°C
InChI
1S/C4H4N2O3/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)
InChI key
HNYOPLTXPVRDBG-UHFFFAOYSA-N
Analysis Note
Assay (acidimetric): ≥ 99
Identity (IR-spectrum): passes test
Chloride (Cl): ≤ 40 ppm
Heavy metals (as Pb): ≤ 50 ppm
Fe (Iron): ≤ 10 ppm
Sulfated ash: ≤ 0.1 %
Loss on Drying (105°C): ≤ 0.1 %
Suitability as reagent (for cyanide determination): passes test
Identity (IR-spectrum): passes test
Chloride (Cl): ≤ 40 ppm
Heavy metals (as Pb): ≤ 50 ppm
Fe (Iron): ≤ 10 ppm
Sulfated ash: ≤ 0.1 %
Loss on Drying (105°C): ≤ 0.1 %
Suitability as reagent (for cyanide determination): passes test
Other Notes
Replaces: BX0035; BX0035-3
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
302.0 °F - closed cup
flash_point_c
150.00 °C - closed cup
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1001320025 | 04022536002255 |
| 1001320100 | 04022536002262 |