- Min.Order :10 Gram
- Purity: /
- Payment Terms : L/C,D/A,D/P,T/T,Other
Keywords
3,3-bis(p-Hydroxyphenyl)-3H-2,1-benzoxathiol-1,1-dioxide PH indicator Phenolrde
Quick Details
- Appearance:Red crystalline powder
- Application:PH indicator.
- PackAge:according to you
- ProductionCapacity:300|Metric Ton|Month
- Storage:Keep in dry ventilated place with sealed.
- Transportation:Keep in dry ventilated place with sealed.
Superiority:
1. 17 years manufacturer,
2. Good quality,
3. Competitive price,
4. Fast delivery time,
5. Professional Team,
6. Good service.
Details:
Phenol Red
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 |
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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