131-52-2 Usage
Description
Sodium pentachlorophenolate (NaPCP) is a white or tan, powdered solid with a phenolic odor. It is soluble in water, ethanol, and acetone, but insoluble in benzene. Sodium pentachlorophenolate may burn, but it is not easily ignited. It is used as a fungicide, herbicide, and disinfectant, and may be toxic by ingestion, inhalation, and skin absorption.
Uses
Used in Agriculture and Horticulture:
Sodium pentachlorophenolate is used as a fungicide to control various fungal diseases in crops and as a herbicide to manage weed growth. It is effective in preventing the growth of unwanted plants and protecting crops from diseases.
Used in Wood Preservation:
Sodium pentachlorophenolate is used as a preservative for wood and wood products. It helps protect wood from fungal and bacterial attacks, as well as insect infestations, thereby extending the life and durability of the wood.
Used in Industrial Applications:
Sodium pentachlorophenolate is used as a slimicide in the paper and pulp industry to control the growth of microorganisms that can cause slime and fouling in the production process. It is also used as a fermentation disinfectant in the pharmaceutical and biotechnology industries to maintain a clean and sterile environment for the fermentation process.
Used in Pest Control:
Sodium pentachlorophenolate is used as an insecticide, molluscicide, and bactericide in various industries. It helps control pests, such as insects and mollusks, that can cause damage to crops, wood, and other materials.
Air & Water Reactions
Soluble in water.
Reactivity Profile
Sodium pentachlorophenolate is incompatible with strong oxidizing agents.
Hazard
Toxic by ingestion, inhalation; skin irritant.
Health Hazard
Exposure can cause irritation of eyes, nose and throat. May cause weakness, excessive sweating, headache, dizziness, nausea, vomiting, and difficulty in breathing.
Fire Hazard
Special Hazards of Combustion Products: Irritating vapors and toxic gases, such as hydrogen chloride, polychlorodibenzodioxins and carbon monoxide, may be formed when involved in fire.
Safety Profile
Poison by ingestion, inhalation, skin contact, intravenous, intraperitoneal, subcutaneous, and intratracheal routes. An experimental teratogen. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Cland Na2O. See also CHLOROPHENOLS.
Potential Exposure
Uses include: wood preservative; as a fungicide in water-based latex paints; preservation of cellulose products, textiles, adhesives, leather, pulp, paper, and industrial waste systems; a contact and preemergence herbicide; general disinfectant and control of the intermediate snail host of schistosomiasis. The technical grade of sodium pentachlorophenate usually contain toxic microcontaminants including polychlorinated dibenzodioxins and dibenzofurans (132-64-9, and others).
Carcinogenicity
Data from a wide range and
large number of studies evaluating the carcinogenic potential
of pentachlorophenol are available. These include three longterm
carcinogenicity studies in mice, three in
rats, two studies evaluating the potential
of pentachlorophenol to act as promoter in the carcinogenic
process, and a “stop exposure” study. The
results of the initiation and/or promotion studies are uniformly
negative, as are the results of all the rat studies and two
of the three long-term mouse studies. In addition, a very large
body of genotoxicity evidence suggests that pentachlorophenol
is nonmutagenic.
Environmental Fate
Routes and pathways, relevant physicochemical properties
Solubility: in water 330 g l-1 at 25 °C; soluble in ethanol,
acetone; insoluble in benzene and petroleum oils.
Partition behavior in water, sediment, and soil
If released to air, NaPCP will exist solely in the aerosol
phase in the ambient atmosphere. The aerosol phase will be
removed from the atmosphere by wet and dry deposition. If released to soil and water under typical ambient conditions
(pH 5–9), NaPCP is expected to exist predominately in
its dissociated form (pKa 4.7). Releases to soil can decrease
in concentration due to slow biodegradation (half-life is
weeks to months) and leaching into groundwater. Releases
to water may photolyze (half-life is hours to days with
rate decreasing with depth of water), biodegrade, adsorb
to sediments, or bioaccumulate in aquatic organisms.
Biodegradation probably becomes significant after a period
of acclimation.Environmental persistencyNaPCP is not persistent in water, sewage, or soil because of
bacterial decomposition. PCP readily decomposes in sunlight
to monomeric and dimeric oxidation products in water.
Principal decompose products are tetrachlororesorcinol,
chloranilic acid, and dimeric products.Bioaccumulation and biomagnificationSodium pentachlorophenol did not appear to bioaccumulate
in aquatic organisms to very high concentrations.
BCFs for the compound were <1000 for most species
tested.
Shipping
UN2567 Sodium pentachlorophenate, Hazard Class: 6.1; Labels: 6.1-Poisonous materials
Toxicity evaluation
The biochemical action of pentachlorophenol is active
uncoupling of oxidation phosphorylation. PCP binds to
mitochondrial protein and inhibits mitochondrial ATP-ase
activity. Thus, both the formation of ATP and the release of
energy to the cell from the breakdown of ATP to ADP are
prevented. Electron transport is not inhibited by PCP, although
reactions dependent on available high-energy bonds, such as
oxidative and glycolytic phosphorylation, are affected. Binding
to enzymatic protein has been reported and may lead to the
inhibition of other cellular enzymes. There is also an increase in
cellular oxygen demand during the uncoupling of oxidative
phosphorylation. This causes the initial rise in respiration rate
reported in individuals poisoned by PCP.
Incompatibilities
Uses include: wood preservative; as a fungicide in water-based latex paints; preservation of cellulose products, textiles, adhesives, leather, pulp, paper, and industrial waste systems; a contact and preemergence herbicide; general disinfectant and control of the intermediate snail host of schistosomiasis. The technical grade of sodium pentachlorophenate usually contain toxic microcontaminants including polychlorinated dibenzodioxins and dibenzofurans (132-64-9, and others).
Waste Disposal
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal.
Check Digit Verification of cas no
The CAS Registry Mumber 131-52-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131-52:
(5*1)+(4*3)+(3*1)+(2*5)+(1*2)=32
32 % 10 = 2
So 131-52-2 is a valid CAS Registry Number.
InChI:InChI=1/C6HCl5O.Na/c7-1-2(8)4(10)6(12)5(11)3(1)9;/h12H;/q;+1
131-52-2Relevant articles and documents
Sodium pentachlorophenol liquid product preparation method
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Paragraph 0018-0020, (2017/01/12)
The present invention discloses a sodium pentachlorophenol liquid product preparation method, which comprises that phenol and chlorine gas are subjected to a chlorine hydrogen substitution reaction to generate a pentachlorophenol melting liquid; the pentachlorophenol melting liquid is subjected to water breaking to form multi-gap sand-like pentachlorophenol solid; the pentachlorophenol solid and a sodium hydroxide solution are subjected to a neutralization reaction to generate a sodium pentachlorophenol crude solution; and the sodium pentachlorophenol crude solution is subjected to concentration regulation with water, and filling is performed to form the sodium pentachlorophenol liquid product. According to the present invention, the three processes such as evaporation, crystallization and centrifugation dehydration are eliminated, the electricity consumption, the natural gas consumption and the water consumption are saved, no irritating gas overflows during the operation process, the process is safe and controllable, the automation can be completely achieved, the production efficiency is significantly improved, and the production cost is significantly reduced.