- Min.Order :1 Kilogram
- Purity: 98%
- Payment Terms : L/C,D/A,D/P,T/T,,Other
Keywords
PH indicator AR chemical reagent high purity dye
Quick Details
- Appearance:Dark Red Crystalline Powder
- Application: PH indicator.
- PackAge:1kg, 5kg, 25kg, 50kg.
- ProductionCapacity:200|Kilogram|Week
- Storage:Keep in dry ventilated place with sealed.
- Transportation:Normal Container
Superiority:
Dark Red Crystalline Powder, Mass Absorption Wavelength L/ (cm.g): λ1 (PH 1.2): 503 - 506 nm λ2 (PH 3.0): 430 - 435 nm
λ3 (PH 6.5): 430 - 435 nm λ4 (PH 8.0): 557 - 560 nm; Mass Absorption Coefficient L/ (cm.g): α1（λ1, PH 1.2）110-123 α2（λ2, PH 3.0）60-68
α3（λ3, PH 6.5）62-72 α4（λ4, PH 8.0）120-135
Details:
1. CAS NO.: 143-74-8
2. Molecular Formula: C19H14O5S
3. Molecular Weight: 354.38
4. Storage: Keep in dry ventilated place with sealed.
5. Use: PH indicator.
|
ITEM |
STANDARD |
|
Appearance |
Dark Red Crystalline Powder |
|
Melting Point |
300 °C |
|
Flash Point |
＞300 °C |
|
PH Change Range |
1.2 ( orange ) – 3.0 ( yellow ) 6.5 (brown yellow ) – 8.0 ( Fuchsia ) |
|
Mass Absorption Wavelength L/ (cm.g) |
λ1 (PH 1.2): 503 - 506 nm λ2 (PH 3.0): 430 - 435 nm λ3 (PH 6.5): 430 - 435 nm λ4 (PH 8.0): 557 - 560 nm |
|
Mass Absorption Coefficient L/ (cm.g) |
α1（λ1, PH 1.2）110-123 α2（λ2, PH 3.0）60-68 α3（λ3, PH 6.5）62-72 α4（λ4, PH 8.0）120-135 |
|
Loss on Drying |
≤ 1.0 % |
|
Residue on Ignition |
≤ 0.2 % |
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