- Contact Information
- Technical Information
- General Instructions
- Physan 20 Product Label (View or download a PDF)
Maril Products Inc.
320 West 6th Street, Tustin, CA 92780
1-800-546-7711 | 714-544-7711 | Fax: 714-544-4830
E-mail: physan@earthlink.net
Technical Information
for Physan 20
PHYSAN 20, E.P.A. No. 55364-5 is a highly refined mixture of n-alkyl dimethyl benzyl ammonium chlorides and n-alkyl dimethyl ethyl benzyl ammonium chlorides.
The quaternary ammonium salts of long chain alkyl, or heterocyclic groups (obtained from fatty acids) make up the group of chemicals known as cationic surface-active quaternary ammonium disinfectants, and have the following basic form.
When R represents the lipophilic group (long chain alkyl or polycyclic groups), R represents “H”, alkyl, azyl, or heterocyclic groups or residues. “X” represents a negative ion with a negative one valence, and 20“N” represents the nitrogen.
CHEMICAL AND PHYSICAL PROPERTIES
| Active Ingredients: | |
| N-alkyl (60% C14 , 30% C16 , 5% C12 , 5% C18) dimethyl benzyl ammonium chlorides: | 10% |
| N-alkyl (68% C12 , 32% C14 ) dimethyl ethylbenzyl ammonium chlorides: | 10% |
| Inert ingredients: | 80% |
| 100% |
GENERAL DESCRIPTION: PHYSAN is an almost clear liquid having a slight, but pleasant odor. It mixes easily in water and does not separate.
SURFACE ACTIVITY: PHYSAN has an inherently high wetting and penetrating action that provides a deep and intimate contact between the antiseptic-germicide and any microorganisms, dirt, etc.
MOLECULAR WEIGHT: Average molecular weight of PHYSAN is 384.
SOLUBILITY: PHYSAN is soluble in water, alcohol and acetone. It is partially soluble in benzene and insoluble in ether.
SUBSTANTIVITY: PHYSAN aqueous solutions are readily absorbed by such textiles as cotton, wool, viscose and acetate rayon. It is so strongly retained by these fibers that bacteriostatic activity is evident even after washing or cleanings.
STABILITY AND SHELF LIFE: PHYSAN is a highly stable product that retains its antiseptic and germicidal properties for long periods - even years, when it is stored under normal conditions.
ACTIVITY: 20%
SPECIFIC GRAVITY: PHYSAN at 20 (pycnometer) is rated at a specific gravity of 0.997.
pH: The pH ratings of PHYSAN aqueous solutions fall within the range of 6.5 to 7.5. PHYSAN is cationic in its reaction to surfaces throughout the entire pH range. It maintains its bactericidal effect throughout the pH range.
HARDNESS TOLERANCE: PHYSAN is stable and effective in waters containing up to 750 ppm hardness calculated as CaCO as determined by the Chambers Method Hardness Test. This fulfills the requirements of appendix F, as revised March 12, 1956, of the Milk Ordnance and Code 1953 -- Recommendations of the U.S. Public Health Service.
COMPATIBILITIES AND INCOMPATIBILITIES: PHYSAN is compatible with the non-ionic surface-active agents, i.e. ethylene oxide, condensates of alkylphenols and high activity fatty acid alkonolomides. It is also compatible with other cationic materials and with certain dye stuffs, essential oils, inorganic and organic salts, alcohol acids and alkalis.
PHYSAN is incompatible with soaps, sulfated or sulfonated fatty alcohols and oils and certain other anionic or surface-active agents. It should never be mixed with these materials. Care should also be taken to fully rinse and remove any soap trace from any surface before applying PHYSAN.
COMPATIBILITIES WITH PESTICIDES: PHYSAN has not been tested for compatibility with other pesticides or fertilizers. We do not recommend the mixing of PHYSAN with other chemicals.
CORROSION AND DAMAGE TO MATERIALS: PHYSAN in use dilutions, will not damage or mar natural rubber, glass, painted or plastic surfaces. It is non-corrosive to all metals in normally used applications for swabbing, mopping and rinsing. PHYSAN is non-flammable and non-explosive.
BACTERICIDAL ACTIVITY: PHYSAN has demonstrated bactericidal or bacteristatic activity against a wide spectrum of bacterial organisms such as:
| Agrobacterium tumefaciens | Pseudomonas sp. |
| Enterobacter Agglomerans | Erwinia cypripedii |
| Erwinia carotovora | Xanthomonas campestris |
FUNGICIDAL ACTIVITY: PHYSAN is effective against a wide variety of fungi that may cause rots, rusts, blights, and mildew.
| Botrytis cinerea | Gnomonia veneta |
| Fusarium spp. | Rhizoctonia solani |
| Penicillium digitatum | Curvularia sp. |
| Gliocladium roseum | Phythium aphanidermatum |
| Rhodoturula glutinis | Helminthosporium sativum |
| Ophiobolus graminis | Puccinia antirrhini |
| Ceratocystis ulmi | Sclerotinia homeocarpa |
VIRUCIDAL ACTIVITY: PHYSAN has been tested and proven to be effective in controlling Tobacco Mosaic Virus (TMV) on hard surfaces and tobacco leaves. TMV is the most stable of the viruses which are pathogenic to plants. PHYSAN’s ability to control TMV may indicate that it would be a good product to control other viruses.
PHYTOTOXICITY: PHYSAN generally is not phytotoxic to plants at concentrations below 400 ppm (1/4 ounce per gallon of water). However, this can vary depending on the type of plant and its stage of growth.
ALWAYS TEST A SMALL NUMBER OF PLANTS FOR PHYTOTOXICITY BEFORE PHYSAN IS USED IN A GENERAL APPLICATION.
RESIDUAL BACTERIOSTASIS: PHYSAN has an affinity for most materials and hard surfaces and also possesses great lasting properties. When PHYSAN is used, an almost imperceptible residual anti-bacterial film is left on the surface. This film prevents and inhibits the growth of microrganisms over a period of several days.
TEMPERATURE AND BACTERICIDAL ACTIVITY: PHYSAN is effective in either hot or cold water. Its effectiveness however, increases with a higher water temperature.
TOXICOLOGICAL PROPERTIES
ACUTE ORAL TOXICITY: LD OF PHYSAN 20 on white rats is 1,000 MG/KG (RATS)
IRRITATION AND SENSITIZATION: PHYSAN at recommended use concentrations, up to 1,000 ppm is neither a primary irritant nor a sensitizing agent.
FIRST AID: In case of contact with PHYSAN 20 concentrate on skin, wash with water; flush eyes with plenty of water, and for eyes call a physician. If swallowed, drink a large quantity of milk, buttermilk, egg whites, or if these are not available, drink large quantities of water. Avoid alcohol. The concentrate is very bitter to the taste. See physician to re-innoculate the intestines.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This standard contains requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of agricultural pesticides. It contains requirements for training, decontamination, notification, and emergency assistance. it also contains specific instructions and exceptions pertaining to the statements on this label about personal protective equipment (PPE). The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard.
Do not enter or allow worker entry into the treated areas during restricted entry interval (REI) of 12 hours.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact with anything that has been treated, such as plants, soil, or water is: coveralls, waterproof gloves, shoes plus socks and protective eyewear.
USAGE CONVERSION TABLE
|
|
|
| 1 | 1/2 |
| 2 | 1 |
| 3 | 1-1/2 |
| 4 | 2 |
This chart illustrates tablespoons and their ounce equivalents. One tablespoon is equal to three (3) teaspoons.
HARD SURFACES/EXTERIORS
Algae-Walkways
For heavy infestation, spray or swab. Let stand for an hour or more. Brush and wash away dead algae. Soak area again with PHYSAN solution. Do not rinse. This product will inhibit the growth of algae on walkways. Allow to dry on surface, and repeat application when algae growth returns.
USE: 1 tablespoon PHYSAN 20 concentrate in 1 gallon of water.
Algae Control - Greenhouse Glass
Spray or swab surfaces. Let stand for one hour or more or until the algae visibly begins to change to a lighter color. Wash off dead algae with water. Spray clean surfaces again with the PHYSAN 20 solution.
USE: 1 teaspoon PHYSAN 20 solution per gallon of water.
Disinfecting Cutting Tools
Soak cutting edge of tool for 10 minutes in PHYSAN 20 solution before use to kill such diseases as Botrytis, Root Rot, Stem Rot and Tobacco Mosaic Virus (TMV). Use wet tool on plants. Dry and oil tools at the end of work.
Use: 1 teaspoon PHYSAN 20 concentrate in 1 quart water.
Mildewstat - Table Tops, Floors
To control mold and mildew on pre-cleaned hard, non-porous surfaces (such as floors, walls, table tops). Apply solution with a cloth, mop or sponge, making sure to wet all surfaces completely. Let air dry. Prepare a fresh solution for each use. Repeat application at weekly intervals or when mildew growth reappears.
USE: 3 tablespoons of PHYSAN 20 concentrate in 2 gallons of water.
Pots, Flats and Flower Buckets
Used pots and flats should be brushed or washed, then soaked in PHYSAN 20 solution for 10 minutes before using to kill such diseases as Anthracnose, Blight, Crown Rot, Mildew, Root Rot and Rusts.
USE: 1 tablespoon PHYSAN 20 concentrate in 1 gallon of water.
Work Area and Benches
Before each work period, spray or swab working surfaces. Spray or swab again after each plant is completed to kill such diseases as, Botrytis, Crown Rot, Downy Mildew, Root Rot, etc.
USE: 1 tablespoon PHYSAN 20 concentrate in 1 gallon of water
ADULT PLANTS/HOUSE PLANTS
House Plants
To control algae and cross contamination in terrariums, bubbles, etc., wipe inside of glass with paper towel dampened with PHYSAN solution.
USE: 1 teaspoon PHYSAN 20 concentrate in 1 gallon of water.
BIRD BATHS/SWIMMING POOLS/FOUNTAINS
Algae Control for Bird Baths
DO NOT USE WITH FISH!
Clean to remove algae growth prior to filling bird bath by spraying all exposed surfaces with PHYSAN 20 solution. Allow to air dry; brush off the dead algae.
USE: 2 tablespoons of PHYSAN 20 concentrate in 2 gallons of water to clean.
Algae Control - Swimming Pools
Initial does should be 2 quarts PHYSAN 20 per 50,000 gallons of water (or 13 ounces per 10,000 gallons of water) followed by cleaning out settled algae next day and re-treatment at the same dosage. This is repeated until the pool is clear of visible algae. Then 1 pint of PHYSAN 20 per 50,000 gallons of water (or 3 1/5 ounces per 10,000 gallons of water) is used every 5-7 days to maintain control. Apply Physan along edges of the pool. After adding the PHYSAN 20, wait 30 minutes before using the pool to allow PHYSAN 20 to be distributed evenly throughout the pool. At the beginning of the swimming season or after a storm, remove branches, leaves and other foreign material before treating the pool with PHYSAN 20.
Evaporative Coolers - Algae, Fungus, and Odors
Controls algae and slime-forming fungi on cooler pads and certain fungal plant pathogens that may carry over in the cooler as well as bacterial odors.
USE: 1 teaspoon PHYSAN 20 concentrate in 15 gallons of water every other week.
SEEDS/SEEDLINGS/CUT FLOWERS
Cut Flowers in containers, tubes, and decorative vases - Bacterial Stem Plugging.
To eliminate stem plugging (which restricts uptake of water) and to control bacteria and fungi (which create ethylene gas, a cause of petal drop), flower spikes should be hardened by keeping the stems in PHYSAN 20 solution during harvesting, storage and shipping.
USE: 1 teaspoon of PHYSAN 20 concentrate in 1 gallon of water.
Plant Cuttings - Begonia, Chrysanthemum, Fuchsia, and Geranium.
For controlling Crown Gall, Gray Mold Leaf Spots, and Powdery Mildew, soak completely immersed cuttings 2-5 minutes in 1-1/2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water. Plant in compost completely saturated in PHYSAN 20 solution.
USE: 1-1/2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Seeds and Seedlings - Damping Off
Treat seeds and seedlings by soaking in a solution of 1 1/2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water for 5 minutes. Fill the flask containing the seed or seedlings with enough PHYSAN 20 solution to completely cover the seeds/seedlings. Drain the PHYSAN 20 solution off the seeds/seedlings before planting. Use a fresh solution of PHYSAN 20 for each flask.
Seedlings - Damping Off (ornamental plants only)
Make a solution of 1 1/2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water. Soak seedlings in PHYSAN 20 for 5 minutes. Use a soak container large enough to completely immerse one flask of seedlings at a time. Change the solution daily or more often if solution becomes visibly dirty.
If a garden soil is used for planting seedlings, completely saturate the soil in PHYSAN 20. Place the soil in a pot or tray and add enough PHYSAN 20 solution to completely cover the soil. Let the solution drain through the soil or pour off excess.
USE: 1 1/2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
PHYSAN 20 solution is effective in stopping the spread of damping off when sprayed on seedlings. Spray seedlings so that all surfaces are thoroughly wet.
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water of 2 tsp. PHYSAN 20 concentrate in 1 gallon of water.
Seedlings - Downy Mildew (Ornamental Plants only)
Most common on seedlings. The fungus sporulates on the lower surface of leaves as a white, sparse downy growth. The disease can cause the death of aerial plant parts. Spray seedlings so that all surfaces are thoroughly wet with Physan20 solution at 5-day intervals until under control.
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water.
TREES/LAWN/TURFGRASS
Flowering Dogwood (cornus florida) - Anthracnose, Leaf Blights, Leaf Spots
Small circular, dirty yellow spots with reddish purple margins on flowers, leaves and young shoots. Spray 4 times -- when flower buds begin to open; as soon as flower bracts have fallen; 4 weeks later; and in late Summer after flower buds are well formed. If possible, spray just before rainy periods.
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water.
Trees (Ash, Sycamore, etc.) Anthracnose
Spray upper and underside of leaves and twigs until thoroughly wet. A large tree requires 50-60 gallons of spray per treatment for adequate coverage. Treat tree with three applications: as buds start to swell in April; as leaves start to expand; and as leaves are about 3/4 grown.
USE: 2 tablespoons PHYSAN 20 concentrate in 3 gallons of water.
Lawn - Grass - Dichondra - for Control of Certain Fungal Diseases and Rusts
1 pint of concentrate diluted treats 6,400 square feet. Controls the following fungal diseases: Algae, Dollar Spot, Fading-Out, Fairy Ring, Leaf Spot, Rust,. Sclerotium rolfsii, Toad Stools. Spray with PHYSAN 20 solution at a rate of 5 gallons solution per 1,000 square feet of turf. Be sure all surfaces or grass are treated and the area is thoroughly soaked with solution. When disease reappears, repeat application. Do not graze treated areas or feed clippings to livestock.
USE: 1 tablespoon PHYSAN 20 concentrate in 1 gallon of water
SPECIFIC PLANT APPLICATIONS
Aucuba, Dahlia, Fuchsia, Geranium, Gladiolus, Peony, Pieris - Botrytis, Downy Mildew, Gray Mold, and Rusts
Downy mildew primarily affects new growth with symptoms of soft decay of flowers, leaves or stems followed by a covering of downy gray mold. Control of the disease consists of quick removal of dead plant parts and application of PHYSAN 20 at the first signs of disease. For Botrytis, spray buds and blooms lightly 2 to 3 times a week using a fine mist. For Rust, apply at 7 -14 day intervals during wet periods starting in early Summer. Before shipping, dip spikes in PHYSAN 20 solution.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Begonias, Ferns and Gesneria (corytholoma, isoloma, allopiectus, episcia, trichosporum)- Bud Rot, Gray Mold, Leaf Spots, and Shoot Rot.
All phases of culture. Remove all plant refuse or dead leaves. Garden clean-up is important in control. Spray PHYSAN 20 solution before the buds open. Then spray when blossom petals have fallen. Spray when 3/4 of the blossom petals have fallen. Spray again two weeks after petal fall.
USE: 1 teaspoon of PHYSAN concentrate in 1 gallon of water.
Bulbs - Daffodil, Easter Lilies, Gladioli, Hyacinth, Iris, Narcissus, and Tulips
Pre-storage and pre-planting treatments: Treat the corms and bulbs immediately after they are “cleaned” and treat again immediately before planting by soaking them 10 minutes in PHYSAN 20 solution to control fusarium basal rot. Air dry.
USE: 1 tablespoon PHYSAN 20 concentrate in 1 gallon of water.
Cactus - Bacterial Leaf Spot, Root Rot, Top Rot
For rotting of underground parts by fungi and bacterial leaf spot or rot of the tops, sterilize seeds and disease-free cuttings by dipping in PHYSAN 20 solution for 5 minutes before planting. Spray at 10-14 day intervals.
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water.
Cactus - Slimy Collar Rot
Just before planting, dip entire plant in PHYSAN 20 solution.
USE: 2 teaspoons PHYSAN 20 concentrate in 1 gallon of water.
Calendulas, China Asters, Chrysanthemums, Crape Myrtle, Dahlias, Lilac, Live Oak - Powdery Mildew
Spray with PHYSAN 20 solution when symptoms appear. Spray upper and lower surface of leaves and branches with PHYSAN 20 solution until thoroughly wet. Spray when buds burst in Spring and repeat in 2 weeks. Spray with PHYSAN 20 solution every two weeks during mildew season. Also, spray Live Oaks at bud break and again in April.
USE: 2 tablespoons PHYSAN 20 concentrate in 3 gallons of water.
Carnations - Canker Rot, Carnation Rust, Crown Rot, Gray Mold Rot, Leaf Spots, Root Rot, and Stem Rot.
For Rust, completely immerse cuttings in PHYSAN 20 solution before planting. For Gray Mold, apply PHYSAN 20 solution 1-2 times just before bud bloom. Apply a light mist spray as the flowers are opening. Carefully collect and burn infected buds, blossoms, and stems.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Crassula, Kalanchoe, and Sedum - Crown Gall, Crown Rot, and Root Rot.
Destroy infected plants or plant parts and drench the remainder with PHYSAN 20 solution. Spray plants weekly to assure solution getting around and in the base of leaves.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Fuchsia, Gardenia, Geranium, Heliotrope - Bud Rot, Gray Mold and Stem Rot.
At the first sign of disease, pick off and burn infected leaves and blossoms; spray, mist, or fog weekly as needed.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Hawthorn (crataegus) - Leaf Blights
After a very wet Spring, small reddish brown spots appear on the upper surfaces of leaves. When spots are numerous, leaves drop. Make 3 spray applications: First, as soon as the leaves emerge from the buds; then when leaves are half grown; and again when fully grown.
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water.
Hawthorn, Hollyhock, Snapdragons - Rust
Spraying for protection should begin with the development of new leaves following Winter clean-up or dormancy. Spraying should begin before the onset of the rainy season. Be sure the undersides of infected leaves are covered by PHYSAN 20 spray solution. For hollyhocks, apply at weekly intervals. Start as soon as growth begins. Repeat applications in late Summer. For snapdragons, collect and burn the tops in the Fall. Avoid sprinkling the foliage while indoors. Apply PHYSAN 20 solution at 7-10 day intervals. Start when plants are set in the garden.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Iris - Botrytis, Crown Rot of Iris, Gray Mold, Rot on Rhizomatous Iris
Treat all new rhizomes before planting with PHYSAN 20 solution. Submerge rhizomes and 3 to 4 inches of leaves for 30 minutes. Plant at once (while still wet with PHYSAN 20 solution)
USE: 2 tablespoons of PHYSAN 20 concentrate in 3 gallons of water.
Iris - Botrytis Leaf Spots
Circular spots, yellowish, then light brown with red border. Spray weekly while plants are growing.
USE: 2 teaspoons PHYSAN 20 concentrate in 1 gallon of water.
Palms - Heart Rot and Penicillium Leaf Base Rot
At the first sign of rot, completely fill cup, or ‘heart” formed by palm branches at top center of plant. Repeat every 7 days until controlled.
USE: 2 tablespoons PHYSAN 20 concentrate in 3 gallons of water.
Roses - Brown Canker
Use regular spraying. Application should begin in early Spring as soon as new growth starts and should be made often enough to provide protection throughout the rainy periods and to keep the new growth covered. On the average, an application once a week will be needed from early Spring until plants are dormant.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water
Roses - Black Spot, Powdery Mildew, Rusts, Stem Gall
Spray with PHYSAN 20 solution when symptoms appear. Spray upper and lower surface of leaves and branches with PHYSAN 20 solution until thoroughly wet. Spray with PHYSAN 20 solution several times, 7 to 10 days apart.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
Rubber Plant - Anthracnose on Leaves and Stems, Crown Gall on Stems
At the first sign of disease, pick off and burn infected leaves, spray, mist or fog weekly with PHYSAN 20 solution as needed.
USE: 1 teaspoon of PHYSAN 20 concentrate in 1 gallon of water.
Saintpaulia (African Violets) - Bud Rot , Crown Rot, Downy Mildew, Gray Mold Rot (Botrytis), Powdery Mildew, Root Rot.
Dip plant and pot in PHYSAN 20 solution. Spraying is okay, but complete coverage of all surfaces is important. Spray every 10 days until controlled.
USE: 1 tablespoon PHYSAN 20 concentrate in 4 gallons of water.
Snapdragons - Anthracnose, Downy Mildew, Phyllosticta Blight, Powdery Mildew, Rusts, Stem Rot, Wilts.
Spray with PHYSAN 20 solution when symptoms appear. Spray upper and lower sides of leaves until thoroughly wet, every 7-10 days. Collect and burn the tops in the Fall.
USE: 2 teaspoons of PHYSAN 20 concentrate in 1 gallon of water.
DO NOT APPLY THIS PRODUCT THROUGH ANY TYPE OF IRRIGATION SYSTEM!
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Maril Products Inc.
320 West 6th Street, Tustin, CA 92780
1-800-546-7711 | 714-544-7711 | Fax: 714-544-4830
E-mail: physan@earthlink.net