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Chemicals
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HOW TO USE THE CATALOG/REFERENCE MANUAL CHEMICALS SECTION
Product Name, Quality, Concentration, etc.:
The full chemical name is shown. An alternate name is some- times shown. A chemical formula is provided as well as the formula weight. The purity grade is included.
Reagent: Highest purity available. Conforms to specifications established by the chemical industry or American Chemical Society. Each batch undergoes an extensive analysis to deter- mine its purity and level of impurities. Use for qualitative and quantitative analysis. Guaranteed to give the best results in your lab.
Laboratory Grade: High purity chemicals that meet indus- try standards. Well suited for most general experiments and demonstrations.
Hazard Alert:
Hazard data is provided to alert the instructor or lab manager to the hazardous character of each chemical.
Storage Number:
Number refers to the compatible chemical family in which this item should be stored. A detailed table of these families and even their most compatible shelf order will be found on pages 227–231. Please refer to those reference pages.
Disposal Number:
Suggested disposal techniques for small, laboratory quantities of chemicals are provided in the back of this Flinn Scientific Catalog/Reference Manual. The number shown in the chemi- cal listing refers you to a specific and suggested disposal method for that particular product.
Shelf Life:
Through a detailed literature and reference book search, we have attempted to provide a general statement about the antici- pated shelf life expectancy of laboratory chemicals in a school setting. Since conditions vary, our shelf life designations are estimates only.
Definition of terms used to describe shelf life—
Excellent: The substance should have a long, useful life under varied storage conditions.
Good: If stored under reasonable conditions of temperature and humidity (25 °C at 50% or less relative humidity), the substance should have a long, useful life.
Fair: If stored under reasonable conditions, the product’s useful life may be three years or less.
Poor: Substance does not store well under reasonable conditions.
Indefinite: A term used frequently to communicate the fact that the substance has no fixed or definable life expectancy.
Deliquescent: Substances that tend to absorb atmospheric water and become liquids.
Efflorescent: Combined water molecules lost by hydrates when exposed to air which can possibly result in partial decomposition.
Hygroscopic: A substance that absorbs moisture from the air.
Soluble:
The extent to which a substance would lose its form and become molecularly or ionically dispersed in a solvent to become a solution. Limited space prevents us from listing every possible solvent.
Hydrochloric Acid
12 Molar
ACS reagent
37 wt %
(sp. gr. = 1.19 at 20 oC) HCl
F.W. 36.46
H0031 100 mL H0004 500 mL H0005 2.5 liters H0006* 2.5 liters
$ 8.25 17.20 32.25 38.45
 HAZARD ALERT: Highly toxic by ingestion or inhalation; severely corrosive to skin and eyes.
Storage: Inorganic #9 in a dedicated acid cabinet. If one is not available, store in a Flinn Saf-CubeTM. See special storage tip under full listing on page 55.
Cap Safety Color Code: Blue Disposal: #24b
Shelf Life: Good if stored safely. Soluble: Water
Color and Odor: Colorless liquid with very strong chlorine odor.
CAS No. 7647-01-0
Incompatability: Avoid storing hydrochloric acid anywhere in the vicinity of formaldehyde. A potent carcinogen, chloromethoxychloromethane, is formed when hydro- chloric acid and formaldehyde react in air. This serious potential problem further emphasizes the need to store hydrochloric acid in a dedicated acid cabinet.
Safety Purchase Suggestion: Buy and store only small package sizes and small quantities. For safety reasons, Flinn offers larger sizes of hydrochloric acid and other hazardous substances in PVC-coated bottles. We have attempted to price the products in these safer containers as low as possible.
*Hydrochloric acid is exactly as described under Catalog Number H0005 but in a PVC-coated bottle. In the event of breakage, acid and glass shards are safely retained in a PVC outer envelope. The PVC-coated bottle is a safer package choice.
Color and Odor:
Meaningful terminology is used to characterize color and odor. This information is provided as a chemical identity tool. For a complete chart of chemical color/odor identification and mystery substance identification procedures, please contact us.
CAS Number:
CAS means Chemical Abstract Service. Think of this number as an identification number—unique to each substance. A more detailed explanation of CAS numbers is found on page 7 of this catalog.
Safety Purchase Suggestion:
If, in our opinion, you should exercise special caution in acquiring a substance, we alert you to that need.
Technical Note:
We have used this caption to provide technical infor- mation; uses, solution preparation, contents or product descriptions.
Catalog Number, Unit of Measure and Price:
Each product has been assigned a catalog number. The unit of measure is almost always specified in metric terms.
(Packaged in PVC-coated bottle)