Frequently Asked Questions

Chlorine Dioxide

Find answers to the most often asked answers.

open-close-arrowWhat is Chlorine Dioxide?


Chlorine Dioxide is a small, volatile molecule, that reacts with other substances by means of oxidation. It exists as a greenish gas at normal temperatures. Because it is a gas, chlorine dioxide cannot be safely transported in large quantities. Chlorine dioxide is usually generated on-site as needed by mixing precursor chemicals. 

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Chlorine dioxide is used everyday in food service, municipal water, mold treatment, odor treatment, medical use, mouthwashes, toothpastes, eye-care, and personal water treatment products, among other applications.   It is also considered to be a more earth friendly alternative to many chlorine applications..

Last updated on May 1, 2020
open-close-arrowIf it only exists as a gas how can I use it?

There are a couple ways. Because it is a gas, chlorine dioxide cannot be safely transported in large quantities. Chlorine dioxide is usually generated on-site as needed by mixing precursor chemicals. Industrial applications may use very strong acids, and chlorine to generate large quantities of gas.

Last updated on Apr 12, 2020
open-close-arrowChlorine Dioxide vs Chlorine: What's the difference?


 Chlorine Dioxide has a lower oxidation strength than chlorine, but more than twice the oxidative capacity.  Reduction/Oxidation Strength or "Redox" is a measure of how strongly an oxidizer reacts with with organic material, the higher the redox potential, the more substances the oxidizer will react with. Chlorine Dioxide has a lower redox potential than ozone, chlorine, or hypochlorus acid.  Because of this lower redox potential, Chlorine DIoxide is more selective in what it reacts to.
 Typically Chlorine DIoxide will only react with compounds that have active carbon bonds, sulfides, cyanides, and compounds with reduced iron or manganese. Chlorine has a higher redox, and will react with a wider range of compounds, including ammonia.  Because of this difference Chlorine DIoxide does not create toxic by products like chlorine does. This is why Chlorine is limited as a biocide in it's overall effectiveness as opposed to Chlorine DIoxide.
 
 The higher oxidation capacity means that Chlorine Dioxide will remove 5 electrons from the target, whereas chlorine replaces 2.  Chlorine will bind to a pathogen, and other chemicals and compunds that may be present.  Chlorine DIoxide being more selective, will not  bind with other compounds.  Because of this capacity, Chlorine Dioxide is more efficient than Chlorine, Ozone, or Hypochlorus Acid when used as a disinfectant.
 After the reaction is complete, Chlorine Dioxide reverts to chloride (salt). Chlorine forms Tri-halomathanes from reaction to ammonia, plus other byproducts from other chemicals and compounds as may be present.

 

Last updated on Jul 9, 2020
open-close-arrowIf chlorine dioxide is a germ-killer, why don't you advertise it as such?

In order to make claims that your product kills germs, you must be registered with the EPA as a pesticide.
Our products are offered for surface cleaning, deodorizing,and similar household uses, as well as oxidative applications.
We do not have EPA registration, so we cannot offer any product with claims to sanitize or disinfect.

The FDA does not recognize sodium chlorite or chlorine dioxide as a nutritional supplement, or a medicine. 
We absolutely cannot discuss any medical condition, or instructions for human ingestion. Please do not ask.




Last updated on Apr 12, 2020
open-close-arrowWhat is the difference between 28% Sodium Chlorite and 22.4% sodium chlorite?

When people say 28%* Sodium Chlorite, they actually mean 22.4% Sodium Chlorite.

Anhydrous Sodium Chlorite Flakes or Powder is the raw material used to make the solution.. It is shipped and sold as Technical Grade Sodium Chlorite at 80% purity.The remaining 20% are buffers such as, Sodium Chloride (common salt), Sodium Carbonate, Sodium Hydroxide, Sodium Sulfate and leftover Sodium Chlorate from the manufacturing process.

You cannot acquire pure sodium chlorite. It is too unstable, and extremely dangerous to handle. I have seen 90% Sodium Chlorite from China, but it is industrial grade, and no regulation as to heavy metals or chlorate content.

When you combine the water and the 80% sodium chlorite flakes at a w/w (weight to weight) ratio of 28% Sodium Chlorite and 72% distilled water, the resulting solution will contain 22.4% actual sodium chlorite, 5.6% buffer ingredients, and 72% water. The total of the actual dissolved solids are 22.4% NaClO2 + 5.6% Inert Buffers which equals 28% total dissolved solids in the solution. 

In other words, what is commonly mislabeled as 28% sodium chlorite is actually 22.4% sodium chlorite.



Last updated on Apr 12, 2020
open-close-arrowI thought it turned dark faster than it does. What's up?

Most often it has to do with what type of sodium chlorite is being used.

We use only EPA registered sodium chlorite. It is more highly regulated than sodium chlorite intended for industrial use.
Industrial Sodium chlorite is the easiest to find. It also costs quite a bit less than EPA registered chlorite. A lot of it is manufactured in China, and distributed through chemical supply companies. The main uses for this are pulp bleaching, oil field use, and other applications in which the killing of pathogens is not the primary goal. Industrial grade Sodium Chlorite is usually quite high in Sodium Chlorate (NaClO3) and Sodium Hydroxide (NaOH), and buffered with common salt. Industrial Grade sodium chlorite can also contain a high amount of lead, mercury, and arsenic. When used to make a solution, industrial grade chlorite will be cloudy for awhile, often requiring to sit for a day or two before it clears. Brown sediment is visible on the bottom, and a foam may remain on top until you skim it off.   Solutions made with industrial grade sodium chlorite may seem to activate "better", turning a dark amber quickly. This is due to the Sodium Chlorate producing both Chlorine Dioxide, as well as Chlorine, and other chlorine compounds. Turning dark faster does not necessarily mean more Chlorine Dioxide. 

Other factors can include the amount being mixed, the vessel it is mixed in, ozonated water, UV, and ambient light.
1 oz will appear darker than 3 drops, even when mixed at the same ratio. 


Last updated on Jul 10, 2020
open-close-arrowHow is your CDS made? Why is it different than CDH or CD Kits

CDS is aqueous chlorine dioxide. It is pure chlorine dioxide absorbed into distilled water. There is no chlorine dioxide in reserve and.It doesn't contain acid. It is bottled at 3000 ppm to allow limited quantity ground shipments. The process for making it correctly requires more equipment, time and steps than the others. You may have seen videos of people making CDS (Aqueous Chlorine Dioxide) using plastic bottles, boiling water, and test strips to measure.

Well, we don't make it like that.
Our CDS is a very pure chlorine dioxide gas absorbed into water. Our entire system is made of laboratory glassware with glass fittings, and PTFE tubing. We use a proprietary method and stoichiometric ratio, It is a forced air system with 3 scrubbers to remove free chlorine and HCl gases that are present in the initial release of gas from the reaction of Sodium Chlorite with HCl . The reagent chamber uses only heat distilled water with no ozone, chilled to  42F. 

Our method and ratio produce an aqueous chlorine dioxide solution between 5000 and 6000 ppm. We test using the  DPD method Colorimetry test, and dilute to strength.  Our system produces 99+% pure CLO2. It degrades at a slower rate than products made by direct infusion or activation, due to impurities being removed in the production process.

Last updated on Apr 23, 2020
open-close-arrowWhats the difference between a CD Kit, CDH, and CDS

CD Kits are the basis for the other 2 products. They contain Sodium Chlorite (Part A) and an activator acid (Part B). When they are combined Chlorine Dioxide is formed' The drops create a small amount of concentrated free chlorine dioxide, and some chlorine dioxide is left in reserve as chlorous acid.  The combined drops can then be mixed with water to the desired strength. The number of drops and amount of water you use depend on your application. 3 combined drops activated for 1 minute will result in approx 25 to 30 ppm free chlorine dioxide when 4 oz of water is added. The pH of the combined drops is approx 3.5, and ppm of chlorine dioxide is about 15,000 ppm available Chlorine Dioxide

CDH is acidified sodium chlorite. It is simply a premix of the combined drops at a much weaker concentration.  It isn't as economical, and the shelf life is greatly reduced. It takes 20 times as much CDH to produce the same result as the CD Kits. The only advantage is convenience.

CDS is aqueous chlorine dioxide. It is pure chlorine dioxide absorbed into distilled water. There is no chlorine dioxide in reserve and.It doesn't contain acid. It is bottled at 3000 ppm to allow limited quantity ground shipments. The process for making it correctly requires more equipment, time and steps than the others.




Last updated on Apr 12, 2020
open-close-arrowWhy can't you send it to a PO Box?

Chlorite solutions, and HCl are considerid hazardous by the U.S.DOT They can only be sent ground, as a consumer commodity packaged for the end user. This is what the affixed sticker signifies.

VNLIM__62887.jpgLimited Quantity Exception - Ground Service (49 CFR HM-215K) 
If the "Ground and Air Packaging Provisions Exceptions" column of the chemical table references a specific packaging exception, refer to that section of 49 CFR to determine if your material qualifies for the exception. If you do not meet all the conditions for that exception, you must prepare the material under the rules for a fully regulated hazardous material.

Chorite Solution, UN1908, Class 8 PGII,

Last updated on Apr 12, 2020

Orders and Shipping

open-close-arrowWhat are your shipping Policies?

Most orders will ship within 1-2 business days
SHIPPING LABELS MAY BE PRINTED IN ADVANCE AND ARE NOT AN INDICATOR OF ACTUAL SHIPMENT  
See Details at bottom of page*

When you place your order, it will be queued for production and shipping the next day. Please be advised that your order may not ship until the following business day. 

FREE SHIPPING IN CONTINENTAL USA 

KVLab ships in compliance with regulations set forth in 49 CFR §172.101 Hazardous Materials Table. The following products have been reclassified as a consumer commodity and may be shipped in limited quantities via ground only. No delivery available outside of the 48 continental United States.

PRODUCT

Sodium Chlorite

CDS


CDH

HCL
.SHIPPING NAME

Chlorite Solution

Corrosive N.O.S.
Chlorine Dioxide .3%

Chlorite Solution 

Hydrochloric Acid
UN NUMBER

1908

1760


1908

1789
CLASS

8

8


8

8
PG

ii

III


II

II
CARRIER

UPS GROUND

UPS GROUND


UPS GROUND 

UPS GROUND

NOTICE: If any of these products are ordered with a PO Box as shipping address, we will attempt to notify you via the email associated with the order. If we have received no reply within 3 days, your order will be cancelled and authorization will be voided. 

Other products may be mailed, unless accompanied by the products listed above

We make all of our Chlorine Dioxide products in daily batches and do not keep these products on the shelf.Orders go into production the following business day, and shipping labels are printed. Your order may go out that ihat day, or the next business day, depending on size of daily batch.

Last updated on Jul 9, 2020