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Crystal Violet


CAS Number: 548-62-9
Formula: C25H30CIN3
Freezing Point: Decomposes
Solubility: Alcohol and Water
Synonyms: Gentian Violet, Basic Violet 3, C.I. No. 42555
Shelf Life: 36 Months

Note: The chemical specifications for some items on this product page may differ from the specifications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.

Caution: Caution:This product is designed for educational and teaching laboratories, and no certificate of analysis is available. Hazard Info: This product is flammable and toxic.


   
 

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Item # Description Grade Size Chemical/Physical Specifications Unit Availability Price Quantity
470300-946 Crystal Violet
Laboratory 10 g Powder Each (10g) Retrieving Restricted
470300-948 Crystal Violet
Laboratory 25 g Powder Each (25g) Retrieving Restricted
470300-938 Crystal Violet, Solution
Laboratory 500 mL 0.1% aqueous Each (500ml) Retrieving Restricted
470300-940 Crystal Violet, Solution
Laboratory 100 mL 1% aqueous Each (100ml) Retrieving Restricted
470300-942 Crystal Violet, Solution
Hazardous Product
Laboratory 100 mL 2% (methanol) Each (100ml) Retrieving Restricted
470300-944 Crystal Violet, Solution
Hazardous Product
Laboratory 500 mL 2% (methanol) Each (500ml) Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 1-800-727-4368 or email sargentwelchcs@vwr.com.

Disposal

This disposal method is published for your convenience. You MUST have checked with your federal, state, and local regulations before using this method and these methods are only applicable for small laboratory sized quantities.

The disposal of this chemical does not need pretreatment and it is not necessary for any chemical reaction to be conducted before it is disposed into a landfill or down the school drain. HOWEVER, there are numerous conditions that should be met which are outlined below before this can be discharged.

If the material is in the solid form, it can be buried in a landfill if:
 a. Local regulations have been confirmed that this material can be disposed of in a landfill.
 b. Chemical is packed into a cardboard box with an appropriate amount of packing material.
 c. Cardboard box is sealed with durable tape.

If the material is in an aqueous form, it can be poured down the drain with excess water if:
 a. Local and State regulations have been checked and you have verified that this material is suitable for this type of disposal
 b. The school drain is connected to the sanitary sewer system.
 c. The quantity that you are disposing of is minimal. A good rule of thumb is less than 250 mL.
 d. Combinations of chemicals are not going down the drain at the same time.
 e. A twenty-fold excess of water is used when washing the chemical down the drain.

A good resource to contact is the local wastewater treatment facility as they can give you guidance and be a resource on drain disposal.

Solution Prep

Use a 0.02% aqueous solution as a pH indicator. Add 0.02 g of crystal violet in 75 ml of DI water. Dilute to a final volume of 100 ml with DI water. For use as a stain for bacteria, Add 2 g of crystal violet to 20 ml of 95% ethyl alcohol. Add 0.8 g of ammonium oxalate monohydrate

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