1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID
Product Code: RXSOL-69-6904-001
Product Short Description: 1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID
Product Technical Specification:
Specifications:
|
MOLECULAR FORMULA |
C10H9NO4S |
|
MOLECULAR WEIGHT |
239.3 |
|
APPEARANCE |
LIGHT PINK POWDER |
|
ASSAY |
MIN 98. 0% |
|
SOLUBILITY IN CARBONATE SOLUTION |
TO PASS TEST |
|
RESIDUE AFTER IGNITION |
MAX 0.1% |
|
SULPHATE (SO4) |
MAX 0.2% |
|
SENSITIVITY FOR PHOSPHATE |
TO PASS TEST |
|
CHLORIDE (Cl) |
MAX 0.01% |
|
Images:
O - TOLIDINE
Product Code: RXSOL-69-6902-001
Product Short Description: O - TOLIDINE
Product Technical Specification:
Specifications:
|
MOLECULAR FORMULA |
C7H9N9 |
|
MOLECULAR WEIGHT |
107.16 |
|
SOLUBILITY (10MG/ML IN HCL 2%) |
CLEAR |
|
MELTING POINT |
127-1340 C |
|
SENSITIVITY |
TO PASS TEST |
|
Images:
XYLIDINE PONCEAU 2R
Product Code: RXSOL-69-3761-533
Product Short Description: XYLIDINE PONCEAU 2R
Product Technical Specification:
|
C.A.S. No. |
3761-53-3 |
|
CI NO. |
16150 |
|
M.F. |
C18H14N2Na2O7S2 |
Specifications:
|
Dye Content (by Spectrophotometry) |
>70% |
|
Solubility 0.1% (Dist. water) |
Clear solution |
|
Absorption maximum (in MeOH) ?max |
507nm |
|
Absorptivity (1%/ 1cm, at ? max) |
420-600 |
|
Loss on drying (110°C) |
<5% |
|
Images:
p-XYLENOL BLUE
Product Code: RXSOL-69-1253-150
Product Short Description: p-XYLENOL BLUE
Product Technical Specification:
|
C.A.S. No. |
125-31-5 |
|
M.F. |
C23H22O5S |
|
M.W. |
410.49gm/mole |
Specifications:
|
Dye Content (by Spectrophotometry) |
>90% |
|
Solubility 0.1 % (MeOH) |
Clear solution |
|
Transition range |
pH 8.0-9.6 |
|
|
Yellow-Blue |
|
Absorption maximum (in MeOH) ?max |
424+/-5nm |
|
Absorptivity (A1%/1cm, in MeOH) |
>200 |
|
Loss on drying (110°C) |
<3% |
|
Images:
XYLENOL ORANGE TETRASODIUM SALT ACS GRADE
Product Code: RXSOL-69-3618-437
Product Short Description: Versatile indicator for acidic range, commonly used as an indicator for metal titrations.
Product Technical Specification:
|
C.A.S. No. |
3618-43-7 |
|
M.F. |
C31H28N2SO13Na4 |
|
M.W. |
760.59gm/mole |
Specifications:
|
Solubility 0.1% (Dist. water) |
Clear solution |
|
Absorption maximum (0.1N NaOH) ?max |
575-580nm |
|
Absorptivity (A1%/1cm in 0.1N NaOH, at ?max) |
>620 |
|
Loss on drying (110°C) |
<8% |
|
Suitability for Zinc titration |
Passes test |
|
Remarks:
XYLENOL used for metal titrations, it will appear red in the titrant and become yellow once it reaches its endpoint.
Images:
WRIGHT STAIN
Product Code: RXSOL-69-6898-892
Product Short Description: WRIGHT STAIN
Product Technical Specification:
Specifications:
|
Solubility 0.1 % (MeOH) |
Clear solution |
|
Absorption Maximum (MeOH) ?1max |
640-645nm |
|
Absorption maximum (MeOH) ?2max |
522-525nm |
|
Absorptivity (A1%/1cm in MeOH at ?1max) |
>1100 |
|
Absorptivity (A1%/1cm in MeOH at ?2max) |
>650 |
|
Loss on drying (110°C) |
<10% |
|
Images:
TROPAEOLIN OO
Product Code: RXSOL-69-5547-340
Product Short Description: TROPAEOLIN OO
Product Technical Specification:
|
C.A.S. No. |
554-73-4 |
|
CI NO. |
13080 |
|
M.F. |
C18H14N3SO3Na |
|
M.W. |
375.38gm/mole |
Specifications:
|
Transition range |
pH 1.2-2.7 |
|
|
Yellow-Orange |
|
Absorption maximum (0.1N NaOH) ?max |
447-451nm |
|
Absorptivity (A1%/1cm in 0.1N NaOH, at ?max) |
>625 |
|
Loss on drying (110°C) |
<5% |
|
Images:
TROPAEOLIN O
Product Code: RXSOL-69-5475-790
Product Short Description: TROPAEOLIN O
Product Technical Specification:
|
C.A.S. No. |
547-57-9 |
|
CI NO. |
14270 |
|
M.F. |
C12H9N2SO5Na |
|
M.W. |
316.27gm/mole |
Specifications:
|
Solubility 0.1% (Dist. water) |
Clear solution |
|
Transition range |
pH 11.2-12.7 |
|
|
Yellow-Orange |
|
Absorption maximum (0.1N NaOH) ?max |
488-493nm |
|
Absorptivity (A1%/1cm in 0.1N NaOH, at ?max) |
>550 |
|
Loss on drying (110°C) |
<5% |
|
Images:
TOLUIDINE BLUE O
Product Code: RXSOL-69-9231-900
Product Short Description: TOLUIDINE BLUE O
Product Technical Specification:
|
C.A.S. No. |
92-31-9 |
|
CI NO. |
52040 |
|
M.F. |
C15H16N3SCl |
|
M.W. |
305.83gm/mole |
Specifications:
|
Dye Content (by Spectrophotometry) |
>80% |
|
Solubility 0.1% (Dist. water) |
Clear solution |
|
Absorption maximum (Dist. water) ?max |
628-633nm |
|
Absorptivity (A1%/1cm in water, at ?max) |
>1200 |
|
Loss on drying (110°C) |
<8% |
|
Suitability for microscopy |
Passes test |
|
Images:
TITAN YELLOW 65%
Product Code: RXSOL-69-1829-001
Product Short Description: TITAN YELLOW 65%
Product Technical Specification:
|
C.A.S. No. |
1829-00-1 |
|
CI NO. |
19540 |
|
M.F. |
C28H19Na2O6S4N5 |
|
M.W. |
695.73gm/mole |
Specifications:
|
APPEARANCE |
YELLOW CRYSTALLINE POWDER |
|
Dye Content (by Spectrophotometry) |
>65% |
|
Solubility 0.1% (Dist. water) |
Clear solution |
|
Transition range |
pH 12.0-13.0 |
|
|
Yellow-Red |
|
Absorption maximum (Dist. water) ?max |
398-405nm |
|
Absorptivity (A1%/1cm in water, at ?max on dried substance) |
>525 |
|
Loss on drying (110°C) |
<8% |
|
Images:
