Arsenic Pentoxide
Molecular Formula	As2O5·xH2O
Molecular Weight	229.84
UN No.	1559
Chemical Abstract Number	12044-50-7

Meets A.C.S. specs./Conforme aux normes A.C.S.

Arsenic Trioxide (Primary Standard Primaire)
Molecular Formula	As2O3
Molecular Weight	197.84
UN No.	1561
Chemical Abstract Number	1327-53-3
Assay/Teneur	99.95-100.05%
Antimony (Sb) Antimoine	0.05%
Ignition residue/Résidu d'ignition	0.02%
Insoluble in dilute HCl/
Insolubles dans l'HCl dilué	0.01%
Chloride (Cl) Chlorure	0.005%
Sulfide (S) Sulfure	T.P.T.
Lead (Pb) Plomb	0.002%
Iron (Fe) Fer	5 ppm

Meets A.C.S. specs./Conforme aux normes A.C.S.

Arsenic Trioxide (Primary Standard Primaire)
Molecular Formula	As2O3
Molecular Weight	197.84
UN No.	1561
Chemical Abstract Number	1327-53-3
Assay/Teneur	99.95-100.05%
Antimony (Sb) Antimoine	0.05%
Ignition residue/Résidu d'ignition	0.02%
Insoluble in dilute HCl/
Insolubles dans l'HCl dilué	0.01%
Chloride (Cl) Chlorure	0.005%
Sulfide (S) Sulfure	T.P.T.
Lead (Pb) Plomb	0.002%
Iron (Fe) Fer	5 ppm

Arsenic Trioxide (Powder Poudre)
Molecular Formula	As2O3
Molecular Weight	197.84
UN No.	1561
Chemical Abstract Number	1327-53-3

Barium Bromide (Dihydrate)
Molecular Formula	BaBr2·2H2O
Molecular Weight	333.19
UN No.	1564
Chemical Abstract Number	7791-28-8
FOR LABORATORTY USE ONLY

Meets A.C.S. specs./Conforme aux normes A.C.S.

Barium Carbonate (Powder Poudre)
Molecular Formula	BaCO3
Molecular Weight	197.35
UN No.	1564
Chemical Abstract Number	513-77-9
Water soluble titratable base (meq/g)/
Base soluble dans l'eau (par titrage)	0.002
Oxidizing substances (nitrate)/
Substances oxydantes (nitrate)	0.005%
Assay (%) Teneur	99.0-101.0
Sulfide/Sulfure (S)	0.001%
Heavy metals (Pb) Métaux lourds	0.001%
Chloride (Cl) Chlorure	0.002%
Iron (Fe) Fer	0.002%
Potassium (K)	0.005%
Sodium (Na)	0.02%
Strontium (Sr)	0.7%
Calcium (Ca)	0.05%
Insoluble in/dans HCl	0.015%