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Methyl Red

MM0490-10G MM0500-500ML MM0510-100ML MM0510-500ML
470301-788EA 9.4 USD InStock
470301-788 470301-794 470301-790 470301-792
Methyl Red
Chemicals for Science Education
CAS Number: 212-682-9
Formula Weight: 291.29
Formula: C15H14N3O2Na
Boiling Point (°C): Decomposes
Solubility: Water, Alcohol, Ether and Acetic Acid
Synonyms: Acid Red 2 Sodium Salt, C.I. No. 13020
Shelf Life (months): 36
Storage: Green

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.

Delivery information: This product is designed for educational and teaching laboratories, and no certificate of analysis is available.



   
 

ORDER

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

To prepare a Methyl Red solution, use a 0.1% alcoholic solution or a 0.04% aqueous solution. For the alcoholic soluiton, add 0.1 g of methyl red to 75 ml of 95% ethyl alcohol. Dilute to a final volume of 100 ml with ethyl alcohol. For the aqueous solution, add 0.1 g of methyl red ot 11.8 ml of 0.02 M sodium hydroxide soluiton. Dilute to a final volume of 250 ml with DI water. If using the sodium salt of methyl red, omit the NaOH and use DI water only.

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