Generic Materials Search: potassium hydroxide
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9 items found.
View the OMRI Generic Materials List Glossary in PDF format here.
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Aquatic Plant Products
Prohibited
Crop Fertilizers and Soil Amendments, Crop Pest, Weed, and Disease Control
Synthetic
Aquatic plant products are prohibited if they contain synthetic preservatives, such as formaldehyde, are extracted by synthetic solvents not on the National List, or are fortified with otherwise prohibited plant nutrients, including phosphoric acid or solvents that exceed the amount necessary for extraction. Potassium hydroxide extracted aquatic plant products may not be blended with synthetically extracted humic acid derivatives. Aquatic plant products that are chemically reacted with extractants may not be used as plant growth regulators.
205.105(a)
Aquatic Plant Products – synthetically extracted
Allowed
Crop Fertilizers and Soil Amendments
Synthetic
Nonsynthetic extracts are allowed. Synthetic extraction process is limited to the use of potassium hydroxide or sodium hydroxide; solvent amount used is limited to that amount necessary for extraction. Aquatic plant products are prohibited if they contain synthetic preservatives such as formaldehyde, or are fortified with otherwise prohibited plant nutrient sources.
205.601(j)(1) As plant or soil amendments… Aquatic plant extracts (other than hydrolyzed)—Extraction process is limited to the use of potassium hydroxide or sodium hydroxide; solvent amount used is limited to that amount necessary for extraction.
Caustic Potash
Allowed with Restrictions
Processing Non-agricultural Ingredients and Processing Aids
Synthetic
Nonagricultural
See also POTASSIUM HYDROXIDE.
205.605(b)
Humic Acid Derivatives – fortified
Prohibited
Crop Fertilizers and Soil Amendments
Synthetic
Humic acid derivatives that are extracted with prohibited materials and/or fortified with prohibited synthetic fertilizers, including potassium hydroxide, are prohibited. See Glossary for definition of "humic acid derivatives."
205.105(a)
Humic Acids – alkali extracted
Allowed
Crop Fertilizers and Soil Amendments, Crop Management Tools and Production Aids
Synthetic
Also called humic acid derivatives. Extracts from nonsynthetic humates by hydrolysis using synthetic alkaline materials are permitted. Includes humates that are extracted using potassium hydroxide, provided that the synthetic extractant is limited to that amount necessary for extraction and is not used to fortify the potassium analysis. See also HUMIC ACIDS – NONSYNTHETIC. Some humic acid derivatives may be used both as an adjuvant or inert ingredient in EPA registered and exempt pesticides. See also INERTS – LIST 4.
205.601(j)(3)
As plant or soil amendments… Humic acids—naturally occurring deposits, water and alkali extracts only.
Potassium
Allowed with Restrictions
Livestock Feed Ingredients, Livestock Health Care
Synthetic/Nonsynthetic
May be derived from potassium bicarbonate, potassium carbonate, potassium citrate, potassium glycerophosphate, potassium hydroxide, or potassium sulfate. See also MINERALS listings.
205.237(a), 205.237(b)(2) & 205.603(d)(2)
Potassium Hydroxide
Allowed with Restrictions
Processing Non-agricultural Ingredients and Processing Aids, Processing Sanitizers and Cleaners
Synthetic
Nonagricultural
Prohibited for use in lye peeling of fruits or vegetables, except when used for peeling peaches during the Individually Quick Frozen (IQF) production process.
205.605(b)
Potassium Hydroxide
Prohibited
Crop Fertilizers and Soil Amendments, Crop Management Tools and Production Aids
Synthetic
See also AQUATIC PLANT PRODUCTS – SYNTHETICALLY EXTRACTED and HUMIC ACIDS – ALKALI EXTRACTED.
205.105(a)
Potassium Hydroxide
Allowed with Restrictions
Crop Fertilizers and Soil Amendments, Crop Management Tools and Production Aids
Synthetic
May be used as either an adjuvant or inert ingredient in combination with active pesticidal ingredients. See also INERTS--List 4. May also be used to produce aquatic plant extracts and humic acids, alkali extracted; Solvent amount used is limited to that amount necessary for extraction. See also AQUATIC PLANT PRODUCTS-SYNTHETICALLY EXTRACTED and HUMIC ACIDS-ALKALI EXTRACTED.