Setup and Operation

Model 6750

 

 

CAUTION: SODIUM PERSULFATE IS A STRONG OXIDIZING AGENT. TAKE ALL NECESSARY PRECAUTIONS AS WITH HANDLING ANY CORROSIVE MATERIAL.

ALL CHEMICALS, INCLUDING WATER, SHOULD BE REAGENT GRADE OR BETTER AND FREE OF CARBON-CONTAINING COMPOUNDS.

THE CONTAINER USED SHOULD BE FLUSHED WITH DISTILLED OR DEIONIZED (DI) WATER.

a.Dissolve 238 grams of ultra-pure reagent grade sodium persulfate (P/N ST40000) into one (1) liter of distilled water.

b.Do not heat reagent to dissolve, as this is not necessary and can reduce the effectiveness of the solution. It should be noted that some reagent grade sodium persulfate is not really “pure”. All persulfate supplied by Teledyne is guaranteed to have sufficient purity for proper operation.

5. Acid Preparation:

Phosphoric Acid is the acid of choice.

PREPARATION OF PHOSPHORIC ACID SOLUTION

a.The container used should be flushed with distilled or deionized (DI) water.

b.Add 117ml of 85% phosphoric acid to one (1) liter of DI Water.

CAUTION: CONTACT WITH PHOSPHORIC ACID LIQUID OR VAPOR CAN DAMAGE TISSUE, CAUSE EYE DAMAGE, RESULT IN SEVERE BURNS AND CAUSE LUNG AND RESPIRATORY DAMAGE. WEAR PROPER PROTECTIVE CLOTHING AND SAFETY GLASSES WITH SPLASH SHIELDS. TREAT ALL ACIDS WITH CAUTION AND HANDLE WITH CARE. ALWAYS WORK IN AN APPROVED FUME HOOD WHEN HANDLING OPEN CONTAINERS OF ACIDS.

6.“End-to End” Calibration:

Teledyne Analytical Instruments

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Teledyne 6750 operating instructions Preparation of Phosphoric Acid Solution