|
dry ice
Dry Ice is solid carbon dioxide, a normal part of our earth's atmosphere. It is the gas that we exhale during
breathing and the gas that plants use in photosynthesis. It is also the same gas commonly added to water to make soda
water.
Dry Ice is particularly useful for freezing, and keeping things frozen because of its very cold temperature: -109.3°F or -78.5°C.
Dry Ice is widely used because it is simple to freeze and easy to handle using insulated gloves.
As a general rule, Dry Ice will sublimate at a rate of 1% per hour in a typical ice chest. This sublimation continues from the time of purchase – therefore, pick up Dry Ice as close to the time needed as possible. Bring an ice chest or some
other insulated container to hold the Dry Ice and slow the sublimation rate. Dry Ice changes directly from a solid to a gas – sublimation – in normal atmospheric conditions without going through a wet liquid stage.
Dry Ice is widely used within the following industries or applications -Laboratories, Pharmaceutical Companies,
Hospitals, Drug Manufacturers, Universities & Elementary Schools, Caterers, Special Effects Companies, Refineries,
Transport / Freight Forwarding Companies, Hunters & Campers and individuals with bed bug issues use dry ice in one manner or
another.
[ safe handling ] · [ frequently asked questions ]
|
Where Can I Purchase Dry Ice?
Dry Ice is offered through our Toronto office and can be shipped anywhere within Canada and Internationally
(minimum quantity of 12kg required).
We offer the following Levels of Service for deliveries.
Sameday or Next Day Service
In most cases, request for deliveries within the Greater Toronto Area are executed by our in-house delivery personnel. However, if
the delivery is to take place outside of the GTA –FedEx is our choice of overnight carrier.
Dry Ice is also available for pickup [ map ] 7 days a week (minimum quantity of 5kg required).
Shipping Services
The Iceman offers full shipping and packaging services of perishable goods to and from the USA or within Canada. Our refrigerated trucks and ample supply of ice and dry ice guarantees that goods will be delivered quickly and safely.
[ find out more ]
|
|
Camping
Ideal for prolonging food refrigeration when outdoors.
Cold Grinding
Dry ice keeps hard to grind materials such as Plexiglas, PVC Resins, Vinyl, and Epoxy Brittle for fast and easy flash removal.
De-flashing
Rubber parts are tumbled in a barrel with dry ice, making them brittle to facilitate flash removal.
Events & Celebrations
Dry ice creates a spectacular smoke and fog effect that is perfect for birthdays, weddings, theatre, and Halloween. It can also be used in class experiments in order to raise students' interest in science.
Lab Use
Dry ice is used for low temperature testing and is often used for transporting specimen samples.
Metallurgy
Dry ice is ideal for shrink fitting metal. Metal parts are immersed in dry ice prior to fitting. After the parts are fitted, they are warmed to room temperature and a strong fit is achieved.
Perishables
Wild game and fish can be packed in dry ice for transport.
|
|
safe handling [ pdf version ]
1. Dry ice has a surface temperature of between -78 and -110 degrees Celsius.
2. Not wearing gloves when handling the product will result in extreme frostbite.
3. Always keep dry ice away from children.
4. Do not swallow, or put dry ice in your mouth.
5. Do not put dry ice in anyone’s clothing for fun. Potentially severe frostbite may occur as a result of prolonged contact with the skin.
6. Do not place dry ice inside an air tight container. Sublimed vapors will increase the interior pressure and will rupture the container.
7. Place a thick layer of cardboard, Styrofoam or similar separator between food and liquid products which need to be chilled. Food and liquid products in containers will freeze when their container is placed in contact with dry ice over a short period of time.
8. Dry ice does not “melt” into a liquid. A process called “sublimation” occurs. Sublimation is when a solid substance skips the liquid state, and goes directly into a gas from it’s original solid state.
9. Dry ice is solid carbon dioxide that expands to a gas. You can loose consciousness by directly breathing in the dry ice vapors for an extended period of time. You will sense carbon dioxide by a “tingling” sensation in the mouth.
Always, always, always BE CAREFUL WITH DRY ICE!!!!!!
BACK TO TOP
frequently asked questions [ pdf version ]
Q: What is dry ice?
A: Dry Ice is frozen carbon dioxide, a normal part of our earth's atmosphere. It is the gas that we exhale during
breathing and the gas that plants use in photosynthesis. It is also the same gas commonly added to water to make soda
water.
Dry Ice is particularly useful for freezing, and keeping things frozen because of its very cold temperature: -109.3°F or -78.5°C.
Dry Ice is widely used because it is simple to freeze and easy to handle using insulated gloves.
Q: What temperature is the surface of dry ice?
A: Dry ice has a surface temperature between -78 and -110 degrees Celsius
Q: Does it melt?
A: No. Dry ice goes through a process called “sublimation” in which a solid substance skips the liquid state and changes directly into a gaseous state.
Q: How is dry ice created?
A: Under normal conditions, carbon dioxide is a colourless and odorless gas. To make carbon dioxide snow (dry ice) the gas is cooled at high pressure which liquefies the gas. Further cooling takes the carbon dioxide to the, “triple point.” The highly pressured liquid is then suddenly expanded by spraying, and turns it into snow. The snow is then pressed into blocks weighing between 50-250 lbs.
Q: How much of the liquid carbon dioxide turns to snow?
A: About 30% of the liquid which is sprayed turns to snow. The rest is turned back into gas and is returned to the compression and cooling process.
Q: What will prevent the dry ice from turning into a gas again?
A: Nothing will prevent the dry ice from “subliming.” Once it is out of the high pressure it must be insulated to reduce the rate of sublimation.
Q: What should dry ice be put into, to insulate it?
A: a “kraft” paper bag will reduce the sublimation rate on its own. The ice wrapped in the paper should be put into a container which is insulated as much as possible, but NEVER seal the ice into an air tight container due to the pressure.
Q: what is the “triple point?”
A: When carbon dioxide is subject to a temperature of 69-degrees Celsius and also to a pressure of 60.4 psi, carbon dioxide can exist as a solid, a liquid and a gas at the same time. The ability to be in three states simultaneously is known as the triple point effect.
Q: Does The Iceman Provide containers to ship the dry ice in?
A: Yes. We offer Styrofoam containers called styro-shippers which can hold capacities of 9.5L to 8L.
Q: How heavy is dry ice?
A: A block measuring 10” x 10” x 10” is 50lbs. A slab measuring 10” x 10” x 2” is 10lbs. A slab measuring 10” x 10” x 1” is 5lbs.
Q: At what rate can I expect the dry ice to sublimate?
A: As a general rule, Dry Ice will sublimate at a rate of 1% per hour in a typical ice chest. This sublimation continues from
the time of purchase – therefore, pick up Dry Ice as close to the time needed as possible. Bring an ice chest or some
other insulated container to hold the Dry Ice and slow the sublimation rate. Dry Ice changes directly from a solid to a gas – sublimation – in normal atmospheric conditions without going through a wet liquid stage.
Q: What type of clientele do you find would require the use of dry ice?
A: Dry Ice is widely used within the following industries or applications:
Laboratories
Pharmaceutical Companies
Hospitals
Drug Manufacturers
Universities & Elementary Schools
Caterers
Special Effects Companies
Refineries
Transport / Freight Forwarding Companies
Hunters & Campers
Individuals with bed bug issues use dry ice in one manner or
another.
Q: What are some benefits to using dry ice?
A: It is an alternative method to heat displacement refrigeration. (i.e. electric refrigerators) It is inexpensive & simple. It consumes no fuel or electricity. It can be cut, wrapped & delivered to predetermined specifications and limiting waste.
BACK TO TOP
|
