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Zinc Orthophosphate

Zinc Orthophosphate MSDS

Other Philadelphia Fluoride Documents
  1. Dec. 5, 1951 Ordinance of Authorization & 1951 Health Code (Amended in 1961)
  2. Sep. 22, 1954 Memorandum of Understanding & Amendment
  3. 1990 Fluoride Statement
  4. 2000 Philadelphia Water Department Cover Letter
  5. Zinc Orthophosphate

Note: Highlighting in this document is from us and does not appear in the original document.


Cas No. 1778-80-0

“Zinc orthophosphate is an effective corrosion inhibitor developed specifically for use in potable industrial water systems. The product is a liquid concentrate of exceptional purity, clarity, and stability. It is manufactured with the highest quality orthophosphate and zinc for better corrosion control.”

Zinc orthophosphate is packaged and shipped in 6, 15, 30, and 55-gallon containers and is available in bulk quantities from the manufacturing facility, local warehouses, and bulk terminals. The product is shipped in polyethylene drums or certified tankers. Each container is identified by lot number. Avoid contact with eyes, skin, and clothing.

Zinc orthophosphate is applied using a chemical metering pump. In most applications [it] is fed as a concentrate without the necessity of dilution.

Properties and Certifications

  • Clear liquid
  • Totally soluble and freeze/thaw stable
  • Approximate shelf life > 2 years
  • Specific Gravity 1.46 ± 0.03
  • Ratio phosphate/zinc 10:1
  • pH (heat) Certified to ANSI/NSF Standard 80
  • Viscosity Freezing point NSF maximum feed rate 20 mg/L
  • Total Phosphate 40% ± 0.5%
  • Sulfate based
  • Bulk Density 12.2 lbs. per gallon
  • Evaporation rate: Not applicable

I. IDENTIFICATION

Chemical Name: D.O.T. Hazard Class: Formula: D.O.T. Shipping Name:
Liquid Proprietary Acidic Zinc Phosphate Corrosive Material Zn(PO4) Corrosive Liquid, Acidic, Inorganic, N.O.S. (Phosphoric Acid, Zinc Sulfate)

II. PHYSICAL DATA

Physical State Boiling Point °C Freezing Point °C Vapor Pressure Specific Gravity Solubility (water weight %
Clear, water white, odorless liquid No Data -51°C N/A 1.46 Soluble in all proportions

III. HAZARDOUS COMPONENTS GREATER THAN 1%

Material PEL TLV CAS. NO. %
Zinc Sulfate · H2O No Data No Data 7733-02-0 10-20
Phosphoric Acid 1 mg/m3 1 mg/m3 7664-38-2 50-60
Non-hazardous Orthophosphate Compounds —– —– —– 20-40
This product contains a toxic chemical or chemicals (as listed above) subject to the reporting requirements of Section 313 – Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372.
Carcinogenicity: Not listed by NTP, IARC, or OSHA


IV. Reactivity Data

Stability CONDITIONS TO AVOID Incompatibility (Material to avoid) Hazardous Combustion/ Decomposition Products
Same TREAT AS ACID Avoid strong bases Aluminum, zinc, mild steel, strong caustic materials None known


V. Health Hazard Data

Type of Exposure Harmful Effects
Swallowing SLIGHTLY TOXIC
Skin Contact SLIGHTLY TOXIC May cause skin irritation
Inhalation No Specific Information
Eye Contact May cause eye injury
Chronic Effects of exposure No Specific Information
Other Health Data No Specific Information. Maximum use level per Standard 60: 20 mg/L
Emergency and First Aid Procedures
Swallowing No specific information. Consult a physician.
Skin Flush area with copious amounts of water. Consult a physician.
Inhalation Remove to fresh air. Consult a physician.
Eyes Flush eyes with copious amounts of water for at least 15 minutes. Consult a physican.

VI. Spill or Leak Procedures

Steps to be taken if material is released or spilled Flush area with large amounts of water. Spills should be conatined to prevent contamination of surface and groundwater supplies.
Waste Disposal Method Disposal of all material shall be in full and strict compliance with federal, state, and local regulations regarding zinc and phosphate.

When handling Zinc Orthophosphate, protective gear should include rubber or plastic gloves, protective goggles or eye shield, local mechanical exhaust at point of use as needed to control misting, and access to eyewash fountain and safety shower.

Store in polyethylene, FRP epoxy, rubber-lined mild steel, or stainless steel containers.

EPA Reg.#: Not applicable


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Last modified: 17 August 2001


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