169 lines
6.7 KiB
Plaintext
169 lines
6.7 KiB
Plaintext
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MSDS - CALCIUM OXALATE
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SECTION I. IDENTIFICATION
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- Chemical Name: Calcium Oxalate
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- Synonym(s): Ethanedioic Acid Calcium Salt
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- Formula: C2CaO4.H2O
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SECTION II. PRODUCT AND COMPONENT HAZARD DATA
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A. Weight
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COMPONENT(S): Percent TLV(R) Accession No. CAS Reg. No.
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Calcium Oxalate GT 98 --- 435753 5794-28-5
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B. PRECAUTIONARY LABEL STATEMENT(S):
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LOW HEALTH HAZARD FOR USUAL INDUSTRIAL HANDLING
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SECTION III. PHYSICAL DATA
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- Appearance and Odor: Colorless crystals; odorless
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- Melting Point: 200 C (392 F)
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- Vapor Pressure: Negligible
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- Evaporation Rate (n-butyl acetate = 1): Negligible
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- Vapor Density (Air = 1): Not Applicable
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- Volatile Fraction by Weight: Negligible
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- Specific Gravity (H2O = 1): 2.2
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- Solubility in Water (by Weight): Negligible
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SECTION IV. FIRE AND EXPLOSION HAZARD DATA
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- Extinguishing Media: Water spray; Dry chemical; CO2
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- Special Fire Fighting Procedures: None known
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- Unusual Fire and Explosion Hazards: None known
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SECTION V. REACTIVITY DATA
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- Stability: Stable
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- Incompatibility: Strong oxidizers
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- Hazardous Decomposition Products:
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As with any other organic material, combustion will produce
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carbon dioxide and probably carbon monoxide.
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- Hazardous Polymerization: Will not occur.
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SECTION VI. TOXICITY AND HEALTH HAZARD DATA
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A. EXPOSURE LIMITS: Not established
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B. EXPOSURE EFFECTS:
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Inhalation: Low hazard for usual industrial handling.
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Eyes: No specific hazard known.
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However, any material that contacts the eye may be
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irritating.
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Skin: Low hazard for usual industrial handling.
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C. FIRST AID:
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Eyes: Immediately flush eyes with plenty of water.
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Skin: Flush skin with plenty of water.
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D. TOXICITY DATA
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Eye Irritation: Calcium oxalate is a very inert insoluble solid
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having no injurious effect on contact with the eye.(1)
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Other: The mean lethal oral dose for an adult is felt to be from 15
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- 30 g, with death resulting from acute kidney failure within a few
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hours.(2)
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SECTION VII. VENTILATION AND PERSONAL PROTECTION
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A. VENTILATION:
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Good general ventilation should be sufficient.
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B. SKIN AND EYE PROTECTION:
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Safety glasses should be worn in any type of industrial
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chemical handling.
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SECTION VIII. SPECIAL STORAGE AND HANDLING PRECAUTIONS
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Keep from contact with oxidizing materials.
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SECTION IX. SPILL, LEAK, AND DISPOSAL PROCEDURES
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Sweep material onto paper and place in fiber carton.
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Package appropriately for safe feed to an incinerator or
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dissolve in compatible waste solvents prior to incineration.
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Dispose by incineration or contract with licensed chemical
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waste disposal agency.
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Discharge, treatment, or disposal may be subject to federal,
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state, or local laws.
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SECTION X. ENVIRONMENTAL EFFECTS DATA
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A. SUMMARY:
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This chemical has not been tested for environmental effects.
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Some published data are available for oxalic acid and oxalate
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anion, and these data have been used to provide the following
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estimate of environmental impact:
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This chemical has a moderate biological oxygen demand and it
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may cause oxygen depletion in aquatic systems. It is expected
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to have a low potential to affect aquatic organisms. The
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organic portion of this chemical is readily biodegradable and
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is not likely to bioconcentrate. When diluted with water, this
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chemical released directly or indirectly into the environment
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is not expected to have a significant impact.
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Calcium oxalate is practically insoluble in water and acetic
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acid.6,7 The data below are for oxalic acid and/or sodium
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oxalate.
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B. OXYGEN DEMAND DATA: (Oxalic acid)(3)
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ThOD: 1.8 g/g
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COD: 0.18 g/g
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BOD5: 0.14 g/g
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BOD20: 0.16 g/g
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C. ACUTE AQUATIC EFFECTS:
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Goldfish; Period of survival: 0.4 - 0.5 hr, 1000 ppm (pH 2.6);
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4 days, 200 ppm (pH 5.3)(3)
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96-hour LC50; Mosquito Fish: 1350 mg/L (Sodium oxalate)(5)
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96-hour LCo; Water flea: 95 mg/L (Oxalic acid)(4)
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48-hour Immobilization; Water Flea: 214 mg/L (sodium oxalate)
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SECTION XII. REFERENCES
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1. Grant, W. M. Toxicology of the Eye, Charles C. Thomas, Publ.
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Springfield, Ill. 974.
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2. Gosselin, R. E., et. al., Clinical Toxicology of Commercial
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Products, 4th, 1976.
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3. Verschueren, K., Handbook of Environmental Data on Organic
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Chemicals, Second Edition, Van Nostrand Reinhold Company, New
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York, N.Y., 1983.
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4. Battelle's Columbus Laboratories, Water Quality Critical Data
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Book - Vol. 3 - Effects of Chemicals on Aquatic Life - Selected
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Data from the Literature Through 1968, for the U.S.
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Environmental Protection Agency, Project No. 18050 GWV,
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Contract No. 68-01-0007, May 1971.
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5. McKee, J.E. and Wolf, H.W., Eds., "Water Quality Criteria,"
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State of California, Publication No. 3-A, 1963.
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6. Weast, R.C. "Handbook of Chemistry and Physics", CRC Press Ed.
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CRC Handbook, Boca Raton, FL, 1981-2.
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7. Windholz, M. "The Merck Index - Ninth Edition" Merck and Co.,
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Ruhway NJ, 1976.
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