o-Cresolphthalein Complexone
CAS:2411-89-4 Product spec:80%min
Molecular Formula: C32H32N2O12
Molecular Weight: 636.61
Assay(spectrophotometric method ): 80%min
Sensitivity: Qualified
Water soluble test: Qualified
Residue on ignition(as sulfate ): 1.0%
Or..
Sodium diethyldithiocarbamate trihydrate
CAS:20624-25-3 Product spec:99% min
Molecular formula: (C2H5)2NC.3H2O
Assay:99% min
Water-soluble test: qualified
Copper adaptable test: qualified
Residue on ignition(as sulfate):30.5-32.5%
Aluminon
CAS:569-58-4 Product spec:qualified
Molecular Formula: C22H23N3O9
Murexide
CAS:3051-09-0 Product spec:qualified
Molecular weight: 284.19
Sensitivity test: qualified
Residue on ignition (as sulfate): 1%max
Rhodamine B
CAS:81-88-9 Product spec:qualified
Molecular Formula: C28H31N2O3.Cl
Molecular weight: 479.02
Stibium sensitivity test: qualified
Water soluble test: qualified
Residue on ignition(as sulfate):0.25% max
3-Indolebutyvic acid
CAS:133-32-4 Product spec:99%min
Molecular Formula: C12H13NO2
Molecular Weight: 203.24
Assay: 99%min
Melting point: 123.0-125.0℃(interval1.5℃)
Loss on drying: 1.0%max
Residue on ignition (as sulfate): 0.1%max
3-Indolylacetic acid
CAS:87-51-4 Product spec:98.5%min
Molecular Formula: C10H9NO2
Molecular Weight: 175.20
Assay: 98.5%min
Melting point: 167.0—169.0℃(interval2℃)
Loss on drying: 0.5%max
Residue on ignition (as sulfate): 0.2%max
Phenol red sodium salt
CAS:34487-61-1 Product spec:qualified
Molecular Formula: C19H13NaO5S
Molecular Weight: 376.36
PH indicator range: 6.8(yellow)-8.4(red)
Water-soluble test: qualified
Loss on drying: 2.0% max.
Residue on ignition: 17.0-21.0%