Naphthalene-2-sulphonic acid hydrate 90%, Technical Grade
Supplier: Thermo Scientific
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Danger
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Synonyms:
2-Naphthalenesulphonic acid hydrate
428690050
428690250
ACRO428690050EA
38.6
GBP
ACRO428690050
ACRO428690250
Naphthalene-2-sulphonic acid hydrate 90%, Technical Grade
Naphthalene-2-sulphonic acid hydrate
Appearance: Grey Powder
Formula:
C₁₀H₈O₃S·xH₂O MW: 208,231 g/mol (anhy) Density: 1,44 g/cm³ Storage Temperature: Ambient |
MDL Number:
MFCD00149271 CAS Number: 76530-12-6 UN: 2585 ADR: 8,III |
Specification Test Results
Appearance | Grey Powder |
Infrared spectrum | Conforms |
HPLC | ≥88 % |
Loss on drying | ≤0.5 % (1 g, 105°C, 16 h) |
Sulfated ash | ≤0.1 % (1 g, 600°C) |
Appearance of solution | (EP) Passes test |
Identification | Passes test (EP, USP) |
Related substances | ≤0.5 % (total impurities) |
Specific optical rotation | +52.5° to +53.3° (20°C, 589 nm) (C=10,H2O/dilute NH3) (Anhydrous substance) |
Acidity | (USP) Passes test |
Color of solution | (USP) Passes test |
Chloride (Cl) | ≤0.018 % |
Sulfate (SO4) | ≤0.025 % |
Arsenic (As) | ≤1 µg/g |
Soluble starch, sulfite | (USP) Passes test |
Dextrin | (EP, USP) Passes test |
Conductivity | ≤20 µS/cm |
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