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High Purity Reagent Grade Deionized Water

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Price: From $15.92 to $31.25
Manufacturer: EK Industries

EKI High Purity Reagent Grade Water is manufactured and packaged in the USA. The proprietary multi-step purification process includes: Carbon adsorption, reverse osmosis, multi-step mixed bed deionization, sterilization by ultraviolet irradiation and final sub-micron filtration. The finished product is free of all organic and inorganic contaminants, and is packaged at 18 megohm resistivity, the absolute limit for completely pure water.

Meets or exceeds the criteria for ASTM Type 1 and CLSI Clinical Laboratory Reagent Water (CLRW). Additionally, it meets or exceeds specifications for USP-NF Purified Water at the time of manufacture.

This high purity water is excellent for reconstituting lyophilized reagents, calibrators and controls. It contains no preservatives and is virtually free of organic and inorganic contaminants. It is intended for in vitro diagnostics and laboratory use.  A Certificate of Analysis is available for every lot produced. This water is not intended for use as a sterile product for injection, infusion or irrigation nor is it potable.



Ammonia/USP Test ............................................ < 0.3 ppm

Bacteriological Purity* ....................................... < 10 CFU/ml

Calcium/USP Test ............................................... Passes Test

Chloride/USP Test .............................................. < 0.5 ppm

Conductivity**/USP Test .................................... Passes Test

Copper ................................................................... < 1 ppm

Heavy Metal/USP Test ........................................ < 0.01 ppm

pH ............................................................................ 5.0 to 7.0

Iron .......................................................................... < 1 ppm

Resisitivity** ........................................................... > 10 megohm-cm

Silicates .................................................................. < 3 ppb

Sodium ................................................................... < 0.1 ppm

Sulfate/USP Test .................................................. Passes Test

Total Organic Carbon** (TOC) .......................... < 50 ppb

Volatile Organic Compounds (VOC) .................Passes Test


Over 85 additional compounds are assayed. A list of those substances are below:

1,1,1,2-Tetrachloroethane

1,1,1-Trichloroethane

1,1,2,2-Tetrachloroethane

1,1,2-Trichloro-1,2,2-trifluoroethane

1,1,2-Trichloroethane

1,1-Dichloroethane

1,1-Dichloroethane

1,1-Dichloropropene

1,2,3-Trichlorobenzene

1,2,3-Trichloropropane

1,2,3-Trimethylbenzene

1,2,4-Trichlorobenzene

1,2,4-Trimethylbenzene

1,2-Dibromo-3-chloropropane

1,2-Dibromoethane

1,2-Dichlorobenzene

1,2-Dichloroethane

1,2-Dichloropropane

1,3,5-Trimethylbenzene

1,3-Butadiene

1,3-Dichlorobenzene

1,3-Dichloropropane

1,4-Dichlorobenzene

1-Chlorobutane

2,2-Dichloropropane

2-Butanone

2-Chloro-1,3-butadiene

2-Chlorotoluene

2-ethyl-1-hexanol

2-Hexanone

2-Methyl-1,3-butadiene

4-Chlorotoluene

4-Isopropyltoluene

4-Methyl-2-pentanone

Acetone

Allyl chloride

Benzene

bis(2-Chloroethyl)ether

Bromobenzene

Bromochloromethane

Bromodichloromethane

Bromoform

Bromomethane

Carbon disulfide

Carbon tetrachloride

Chloroacetonitrile

Chlorobenzene

Chloroethane

Chloroform

Chloromethane

cis-1,2-Dichloroethene

cis-1,3-Dichloropropene

Dibromochloromethane

Dibromomethane

Dichlorodifluoromethane

Diethyl ether

Ethyl acrylate

Ethyl methacrylate

Ethylbenzene

Hexachlorobutadiene

Hexachloroethane

Iodomethane

Isopropylbenzene

m,p-Xylene

Methacrylonitrile

Methyl acrylate

Methyl methacrylate

Methyl tert-butyl ether

Methylene chloride

n-Butyl acrylate

n-Butylbenzene

n-Propylbenzene

Naphthalene

o-Xylene

Pentachloroethane

sec-Butylbenzene

Styrene

tert-Butylbenzene

Tetrachloroethene

Tetrahydrofuran

Toluene

trans-1,2-Dichloroethene

trans-1,3-Dichloropropene

trans-1,4-Dichloro-2-butene

Trichloroethene

Trichlorofluoromethane

Vinyl chloride

Total Xylenes

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