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IND
LABOR
400533125
Alizarin Yellow R IND Grade Reagent
Cas Number:1718-34-9
Formula: C13H8N3NaO5
Molar Mass:309.21
EC Number:217-002-4
Physicochemical properties:
Orange-brown crystals. It can be decomposes at 253 to 254 °C. It is soluble in water and ethanol, slightly soluble in acetone and ethylene glycol ether, almost insoluble in other organic solvents. Usually the product is sodium salt (C13H8N3NAO5), which is a brownish yellow powder and soluble in water, the solution is brownish yellow.
Usage:
Acid-base indicator, the pH is 10.2 (yellow) ~ 12.0 (red).
Packing:
500g/25kg
Alizarin Yellow R IND Grade Reagent
Cas Number:1718-34-9
Formula: C13H8N3NaO5
Molar Mass:309.21
EC Number:217-002-4
Physicochemical properties:
Orange-brown crystals. It can be decomposes at 253 to 254 °C. It is soluble in water and ethanol, slightly soluble in acetone and ethylene glycol ether, almost insoluble in other organic solvents. Usually the product is sodium salt (C13H8N3NAO5), which is a brownish yellow powder and soluble in water, the solution is brownish yellow.
Usage:
Acid-base indicator, the pH is 10.2 (yellow) ~ 12.0 (red).
Packing:
500g/25kg
Item of Analysis | Standard |
Sensitivity test | to pass test |
pH discoloration domain | 10.0(Yellow)~12.0(Red) |
Solubility in water | to pass test |
Solubility in ethanol | to pass test |
Residue on ignition(as SO4),% | 18.0~24.0 |
Item of Analysis | Standard |
Sensitivity test | to pass test |
pH discoloration domain | 10.0(Yellow)~12.0(Red) |
Solubility in water | to pass test |
Solubility in ethanol | to pass test |
Residue on ignition(as SO4),% | 18.0~24.0 |
Symbol | |
Signal word | Warning |
Hazard statement | H302 |
Precautionary statements—Prevention | P280 |
Precautionary statements—Response | P301+P312 |
P330 | |
UN No. | No Information |
Symbol | |
Signal word | Warning |
Hazard statement | H302 |
Precautionary statements—Prevention | P280 |
Precautionary statements—Response | P301+P312 |
P330 | |
UN No. | No Information |