HEDP 60%
Chelating agent, Scale and Corrosion Inhibitor. Scale prevention and corrosion inhibition in water treatment.
Description
HEDP ACID chemical name is Hydroxy Ethylidene -1,1-Diphosphonic acid manufacturer, supplier and exporter. HEDP is organophosphonate compound which have chemical properties of sequestration, deflocculation, threshold inhibition and hydrolytic stability etc. HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. It can dissolve the oxidized materials on these metals’ surfaces.
Application:
RXSOL-81-8160-250 chemically having wide range of applications including scale prevention and corrosion inhibition in water treatment.
Hydroxy Ethylidene -1,1-Diphosphonic acid is organophosphonate with multifunctional properties like sequestration, deflocculation, threshold inhibition and hydrolytic stability, as a single active ingredient. Because of the combination of these properties Hydroxy Ethylidene -1,1-Diphosphonic acid has a wide range of applications. One of the most important applications is in scale prevention and corrosion inhibition in water treatment.
Dose:
HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid. It is used as a strong chelating agent for metal ions like Ca, Mg & Fe in water treatment, textile applications. Its efficient inhibition for CaCO3 & CaSO4 alone or in combination with low molecular weight polymers. Very effective in protecting metal corrosion. HEDP also having very strong chlorine stability.
Note:
Storage for ten months in room shady and dry place. Safety Protection: Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Additional information
| MSDS | Product Name HEDP 60% Product Type RXSOL-81-8160-250 Company Details: Phone +91 22 65113333 / 5555 / 9999 Fax +91 22 2781 1318 :::AOH :0091 9821214367 Chemical % TWAEV / TLV LD50 (mg/kg) LC50 ppm HEDP 58-62% Not listed 2400 >7940 not known Canada – WHMIS Key: D 2B, E U.S.A. – HMIS Key: Health – 2, Fire – 0, Reactivity – 1 3. (b) HAZARDS – TOXICITY: Effects, Acute Exposure: Skin Contact Irritating, may be corrosive if not removed promptly Skin Absorption Slight; no toxic effects likely by this route Eye Contact Irritating, may be corrosive if not removed promptly Inhalation Product mist is irritating; prolonged exposure may be corrosive to respiratory tract Ingestion Irritating to mouth, throat & stomach – not a route of industrial exposure Effects, Chronic Exposure: General Chronic ingestion of HEDP binds to bone, reducing mineralization of bone in adult beagles & in young rats giving rise to less calcium (& presumably strength) in bone Sensitising Not a sensitiser in humans or animals Carcinogen/Tumorigen Not considered a tumorigen or a carcinogen in humans or animals Reproductive Effect Reduced fertility in rats on prolonged ingestion; no known effect in humans Mutagen No known effect on humans or animals; some mutagenic effect observed in onion & barley root tips – significance of this to human health is not known Synergistic With Not known LD50 (oral) 2400, 3130 & 3550mg/kg (rat) LD50 (skin) >7940mg/kg (rabbit), >10,000mg/kg (rabbit) LC50 (inhalation) Not known SKIN: Wash with plenty of water. Remove contaminated clothing and do not reuse until thoroughly laundered. EYES: Wash eyes with plenty of water, holding eyelids open. Seek medical assistance promptly if there is irritation. INHALATION: Remove from contaminated area promptly. CAUTION: Rescuer must not endanger himself! If breathing stops, administer artificial respiration and seek medical aid promptly. INGESTION: Give plenty of water to dilute product, or milk if available to neutralise it. Do not induce vomiting (NOTE below). Keep victim quiet. If vomiting occurs, lower victim’s head below hips to prevent inhalation of vomited material. Seek medical help promptly.
Inadvertent inhalation of vomited material may seriously damage the lungs. The danger of this is greater than the risk of poisoning through absorption of this relatively low-toxicity substance. The stomach should only be emptied under medical supervision, and after the installation of an airway to protect the lungs. Flash Point Not known – will not flash Autoignition Temperature Not known – will not burn Flammable Limits Not known – will not burn Combustion Products Nitrogen oxides, phosphorous oxides Firefighting Precautions As for materials sustaining fire; firefighters must wear SCBA Static Charge Accumulation Cannot accumulate a static charge on agitation or pumping Leak Precaution dyke to control spillage and prevent environmental contamination Handling Spill ventilate contaminated area; recover free liquid with suitable corrosion resistant pumps; absorb residue on an inert sorbent, sweep, shovel, & store in closed containers for recycling or disposal above 0oC / 32oF. Do not use steel containers. Suitable containers include polyethylene, polypropylene, fibreglass, glass-lined steel and polyvinyl chloride. Do not use copper or brass plumbing or valves. Ensure that containers, whether empty or full, or part full, are tightly sealed unless in use. Avoid creating or breathing product mist. Use with adequate exhaust ventilation if a mist is created. Never cut, drill, weld or grind on or near this container. Avoid all contact with skin and wash work clothes frequently. An eye bath and safety shower must be available near the workplace. ACGIH TLV Not listed OSHA PEL Not listed STEL Not listed Ventilation No special mechanical ventilation required Hands Nitrile gloves recommended – other types may also protect; consult supplier to confirm suitability Eyes Safety glasses with side shields; a face shield is also recommended – always protect the eyes Clothing Wear impermeable (above) apron, boots, & long sleeves if there is any danger of splashing, Odour & Appearance Clear, colourless or yellowish liquid with slight odour Odour Threshold Not known Vapour Pressure 17.5mmHg / 2.3kPa (20oC / 68oF) – only water vapour present Evaporation Rate (Butyl Acetate = 1) As for water Vapour Density (air = 1) 0.6 – only water vapour present Boiling Range 108oC / 226oF Freezing Point <0oC / <32oF Specific Gravity 1.44 (20/20oC) Water Solubility Complete Also soluble in Methanol, ethylene glycol – probably other polar solvents Viscosity Not known pH <2 Molecular Weight 206grams per mole Dangerously Reactive With Strong oxidising agents, strong reducing agents, strong alkalis, amines Also Reactive With Corrodes some base metals; releases toxic gases in contact with metal sulphides & sulphites Stability Stable; will not polymerize Decomposes in Presence of Not known Decomposition Products None apart from Hazardous Combustion Products Sensitive to Mechanical Impact No Canada DSL On inventory U.S.A. TSCA On inventory Europe EINECS On inventory China IECS On inventory Europe Risk Phrases R: 22, 36, 38 – harmful if swallowed, irritating to eyes, irritating to skin Europe Safety Phrases S: 13, 24-26, 36, 46 – keep away from food, drink and animal feed, avoid contact with skin, avoid contact with eyes, in case of contact with eyes, rinse immediately & seek medical advice, wear suitable protective clothing, if swallowed, seek medical advice immediately Bioaccumulation This product is not a bioaccumulator Biodegradation HEDP degrades in the presence of oxygen at a wide range of rates – 0% – 48% in 28 days (a dozen test reports) In Europe, considered to be “readily biodegradeable” Abiotic Degradation 12-17% in 11 days degradation by direct photolysis Mobility in soil, water This product is water soluble and will move readily in soil and water Aquatic Toxicity: LC50 (Fish, 96hr) 2180mg/litre (Pimephelas promelas & Cyprinodon variegatus), 200-368mg/litre (Salmo gairdneri),695mg/litre (Ictalurus punctatus), 868mg/litre (Lepomis macrochirus), 207 & 350mg/l (Leuciscus idus) EC50 (Crustacea, 24hr) 527mg/litre (Daphnia magna), 1770mg/litre (Palaemonetes pugio) EC50 (Algae) 39mg/litre (Selenastrum capricornutum)
Waste Disposal Do not flush to sewer, recycle if possible, biodegradation in approved facility with bacterial sludge of “proven effectiveness” (see Part 12, below) for HEDP is preferred Containers Drums should be reused. Recondition and pressure test by a licensed reconditioner prior to re-use. Canada TDG PIN UN-3265 Shipping Name corrosive liquid, acidic, N.O.S. (1hydroxyethanediphosphonic acid)
Class 8 Packing Group III Marine Pollutant not a marine pollutant No informtion Available The data given here is based on current knowledge and experience. This Safety Data Sheet describes the product in terms of safety requirements and does not signify any warranty with regard to the product's properties The data given here only applies when product used for proper application(s). The product is not sold as suitable for other applications usage in such may cause risks not mentioned in this sheet. Do not use for other application(s) without seeking advice from manufacturer.
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