Acetic Acid
Acetic acid (CH3COOH, CAS 64-19-7) is a weak organic acid. A key component of metabolism with applications as a hydrophilic protic solvent, reagent, antibacterial agent, and manufacturing component; can be diluted into vinegar or concentrated into glacial acetic acid.
Also known as ethanoic acid or methane carboxylic acid, acetic acid is a colorless liquid organic compound with a pungent smell and a distinctively sour taste. Acetic acid may be produced industrially from methanol or by bacterial fermentation.
In the laboratory, acetic acid is used as a chemical solvent or reagent, and its antibacterial properties are used to prevent the growth of fungus and bacteria.
Acetic acid has multiple commercial uses, including:
- As a solvent
- In the production of cellulose acetate and polyvinyl acetate
- For making acetate, acetic acid ethylene, acetic anhydride, and halogenated acetic acid
- As a component for manufacturing inks and dyes, synthetic fibers and textiles, pesticides, and wood glues
Corrosive in its concentrated form, workers should use proper personal protective equipment to prevent ingestion, inhalation, and contact with eyes and skin; suitable respiratory equipment may also be appropriate. Keep acetic acid away from heat sources and oxidizing agents, reducing agents, acids, and alkalis. Store in a cool, well-ventilated area.
Electron Microscopy Sciences Acetic Acid 1%, Solution 500 ML
Used in Weigert's Iron Hematoxylinwith Methachromic Dyes for nuclear stain. See Weigert, K., Z. Wissen. Mikro., 21:1-5, 1904, Lillie, R.D., Histopathologic Technical and Practical Histochemistry, 3rd edition, McGraw-Hill, NY, 1965, or Clark, G., (ed.), Staining Procedures, 3rd Edition, Williams & Wilkins, Baltimore, p.40, c 1973.
Electron Microscopy Sciences Acetic Acid 3% 500 ML
Used in combined Hematoxylin and Eosin/Methenamine Silver Stain for the fungi in tissue Sections. For bacterial, fungal stains. See references: Lamps, Laura W. et al A Combined Hematoxylin and Eosin/Methenamin Silver Stain for theHistological Diagnosis of Fungi In Tissue Sections., J. of Histotechnology 23:4 p.341 – 345, 2000.
Electron Microscopy Sciences Acetic Acid 1% Aqueous 500 ML
Used in Goldner's Trichrome Method for connective tissue stains – Elastic tissue stain. Stain with a poly-acid step. See Luna, Lee G. Histopathologic Methods and Color Atlas of Special Stains and Tissue Artifacts. Johnson Printers, Downerts Grove, IL p151-152, c 1992.
Chem-Impex International, Inc. Potassium acetate | 127-08-2 | MFCD00012458 | 1KG
Potassium acetate, 127-08-2, MFCD00012458, 1KG
Electron Microscopy Sciences Acetic Acid 0.2% Aqueous 500 ML
Used in Thomas Method for Malarial Parasites, Thomas (1953). References: Thomas, J.T. Stain Techn., 28:311-312, 1953 and Luna, L.G. (ed.) Manual of Histologic Staining Methods of the AFIP, 3rd Ed. McGraw-Hill, New York, P.129, c.1968
Electron Microscopy Sciences Acetic Acid 1% Aqueous 500 ML
Used in Masson's Trichrome for Connective Tissue for stain nuclei, agentaffen granules, collagen, cytoplasm, keratin, etc. References: Sheehan and Hrapchak: Theory and Practice of Histotechnology, St. Louis. The Moxby Company 1980, p. 190
Electron Microscopy Sciences Acetic Acid 1% Aqueous 500 ML
Used in Herxheimer's Technique for staining fat and cholesterol. References: Clark, G., Ed.: Staining Procedures; 3rd Ed.; Baltimore: Williams and Wilkins Co., c. 1973, p. 143 Conn's, H.J.: Biological Stains; 8th Ed., Baltimore: Williams and Wilkins Co., c. 1969, p.100
Bioworld Acetate Buffer, 1M, pH 5.0, 500 mL
Product DescriptionAcetate buffer has a pH value of 5.0 and is made from a mixture of acetic acid (weak acid) and acetate ions (conjugated base). It is routinely used in DNA and RNA precipitation, and in the preparation of gel stains for protein gel electrophoresis. Experiments have shown that when added to food waste composting systems, sodium acetate may be effective at counteracting the adverse effects of organic acids produced in the composting process.It has a pKa value of 4.76 and a melting point of 323-329°C.For laboratory use only. Not fit for agricultural, household, clinical use or human consumption.
Sigma Organic Chemistry Acetic anhydride | 5KG | 108-24-7 | MFCD00008705 | >=99.5% (GC)
Acetic anhydride | 5KG | 108-24-7 | MFCD00008705 | >=99.5% (GC)
Sigma Organic Chemistry alpha-Cyclohexylmandeli | 5G | 4335-77-7 | MFCD00194543
alpha-Cyclohexylmandeli , 5G
About this item:
CAS #: 4335-77-7
MDL #: MFCD00194543
Purity: ≥97
Molecular Weight: 234.29
UNSPSC Code: 12352100
Alkali Scientific CellPro™ DEPC Treated Ultra Pure Water, 500ml
DEPC Treated Water (and therefore RNase-free) water is used in handling of RNA in the laboratory to reduce the risk of RNA being degraded by RNases. Water is usually treated with 0.1% v/v DEPC for at least 2 hours at 37 °C and then autoclaved (at least 15 min) to inactivate traces of DEPC. Inactivation of DEPC in this manner yields CO 2 and ethanol.
Electron Microscopy Sciences Acetic Acid 0.5% 500 ML
Used in Modified Movat's Stain for connective tissue stains – Elastic tissue stains. See Movat, H.Z.;: Demonstration of all connective tissue elements in a single section. Arch Path., 60:289 – 295, 1955 or Roman N., et al: Orcein-hematoxylin in iodized ferric chloride as a stain for elastic tissue. Stain Technology, 42:199 –202, 1967
Cayman Chemical W-MurIcholIc AcId 1mg
A synthetic peptide that that selectively reversibly and substrate-competitively inhibits PKC activity and thus is used to delineate the signaling functions of PKC
Sigma Organic Chemistry 2-Isopropylphenoxy acet | 1G | 25141-58-6 | MFCD00463165
2-Isopropylphenoxy acet , 1G
About this item:
CAS #: 25141-58-6
MDL #: MFCD00463165
Chemical Formula: C11H14O3
Molecular Weight: 194.23
UNSPSC Code: 12352200