Buffers and Solutions

Formaldehyde, Solution, Reagent, ACS is also known as methanal and is the simplest aldehyde. It is used in industrial application for the production of different types of formaldehyde-based resins, a tissue fixative and as a fixative in microscopy and histology. As an ACS grade Reagent, Spectrum Chemical manufactured formaldehyde solution is used as the quality standard against which other substances are grade and has met the toughest regulatory standards for quality and pureness.

(6 per CS )

Formulation:???????? TRIS HCI: 0.5 M???????? SDS:?0.4%???????? pH:?6.8 Dimensions: 3.50 x 8.50 x 3.50, Weight: 2.25, Cas#: 1185-53-1, 151-21-3, 7732-18-5 Research or further manufacturing use only, not for food or drug use. (1 per EA)

Shelf Life (months): , , UN Number: UN1646 (1 per EA)

Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)

Thiosulfate Reagent (chlorine titrant), 16 oz (1 per EA)

Phenolphthalein, 0.5 Percent (w/v) Indicator Solution in 50 Percent Alcohol, APHA - As an APHA certified solution, this item meets the ASTM D1209 standards for use in water and waste water treatment facilities to determine the concentration of dissolved and particulate materials. Spectrum Chemical manufactured APHA grade products meet the toughest regulatory standards for quality and purity.

(1 per EA )

Shelf Life (months): 12, Traceable to NIST, UN Number: (1 per EA)

Shelf Life (months): 12, Traceable to NIST, UN Number: (1 per EA)

Lovibond® Hydrazine Reagent Ampoules, 30 ct (1 per EA)

Shelf Life (months): 12, , UN Number: (1 per EA)

Potassium Iodide, 5 Percent (w/v) Aqueous Solution, For Residual Chlorine, APHA - As an APHA certified solution, this item is meets the ASTM D1209 standards and can be used in water and waste water treatment facilities to determine the concentration of dissolved and particulate materials. Spectrum Chemical manufactured APHA grade products meet the toughest regulatory standards for quality and purity.

(1 per EA )

Starch Indicator, 1 Percent (w/v) Aqueous Solution, Stabilized, is used in chemistry as an indicator for redox titrations where triiodide is present. These titrations are typically useful in volumetric analysis for determination copper(II), antimony (V), chlorate, hydrogen peroxide, dissolved oxygen, sulfite and sulfide levels.

(1 per EA )

Sulfuric Acid, 0.02 N Solution, APHA - As an APHA certified solution, this item is meets the ASTM D1209 standards and can be used in water and waste water treatment facilities to determine the concentration of dissolved and particulate materials. Spectrum Chemical manufactured APHA grade products meet the toughest regulatory standards for quality and purity.

(1 per EA )

Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard are solutions mainly utilized to keep pH at a constant value in a variety of chemical applications. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

(1 per EA )

Total Ionic Strength Adjustment Buffer, Solution, For Fluoride, APHA - As an APHA certified solution, this item is meets the ASTM D1209 standards and can be used in water and waste water treatment facilities to determine the concentration of dissolved and particulate materials. Spectrum Chemical manufactured APHA grade products meet the toughest regulatory standards for quality and purity.

(1 per EA )

Buffer Solution, pH 2.00 +/- 0.02 @ 25 DEG C, Reference Standard is a mixture of weak acid and its conjugate base in order to prevent changes in the pH of a solution. Buffer solutions let you calibrate any pH tester to ensure accurate readings when measuring pH in water samples and process liquids.

(1 per EA )

pH 6.0 (yellow) - pH 7.6 (blue) (1 per EA)

Boric Acid, 2% w/v Solution, 3.8 L (1 per EA)

N/2 (0.5 M) (1 per EA)

Potassium Sulfocyanate; Potassium Thiocyanide (1 per EA)

Shelf Life (months): 24, , UN Number: UN1090 (1 per EA)

Shelf Life (months): 24, Traceable to NIST, UN Number: (1 per EA)

Sodium Methoxide, 25 Percent (w/w) Solution in Methanol is a chemical solution that is commonly used as a reagent in industry and laboratory uses. It is also used as an initiator of anionic addition polymerization with ethylene oxide as well as being used as a routine base in organic chemistry.

(1 per EA )

Sodium Chloride, 5% w/w Solution, 500 mL, Poly (1 per EA )