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MSDS Number: S4750 * * * * * Effective Date: 08/23/04 * * * * * Supercedes: 09/12/03
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SODIUM PHOSPHATE MONOBASIC
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1. Product Identification
Synonyms: Sodium phosphate monobasic, monohydrate; Sodium biphosphate, monohydrate; Sodium acid phosphate, monohydrate; Sodium dihydrogen phosphate, monohydrate
CAS No.: 7558-80-7 (Anhydrous); 10049-21-5 (Monohydrate)
Molecular Weight: 137.99
Chemical Formula: NaH2 PO4 H2O
Product Codes:
J.T. Baker: 3799, 3802, 3818, 3820, 3821, 3825, 4011
Mallinckrodt: 0877, 7774, 7868, 7892, 7894, 7991
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2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Sodium Biphosphate 7558-80-7 98 - 100% Yes
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3. Hazards Identification
Emergency Overview
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CAUTION! MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. MAY BE HARMFUL IF SWALLOWED OR INHALED.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: Green (General Storage)
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Potential Health Effects
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Inhalation:
May cause irritation to the respiratory tract. Symptoms may include coughing and shortness of breath.
Ingestion:
Phosphates are slowly and incompletely absorbed when ingested, and seldom result in systemic effects. Such effects, however, have occurred. Symptoms may include vomiting, lethargy, diarrhea, blood chemistry effects, heart disturbances and central nervous system effects. The toxicity of phosphates is because of their ability to sequester calcium.
Skin Contact:
Irritant due to its acidic nature. May cause inflammation and pain on prolonged contact, especially with moist skin.
Eye Contact:
May cause irritation, redness and pain.
Chronic Exposure:
May sequester calcium and cause calcium phosphate deposits in the kidneys.
Aggravation of Pre-existing Conditions:
No information found.
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4. First Aid Measures
Inhalation:
Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
Give large amounts of water to drink. Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention if irritation develops.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids occasionally. Get medical attention if irritation persists.
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5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
Explosion:
Not considered to be an explosion hazard.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode.
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6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal. Small amounts of residue may be flushed to sewer with plenty of water.
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7. Handling and Storage
Keep in a well closed container stored under cold to warm conditions, 2 to 40 C, (36 to 104F). Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
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8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
None established.
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved):
For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator (NIOSH type N95 or better filters) may be worn. If oil particles (e.g. lubricants, cutting fluids, glycerine, etc.) are present, use a NIOSH type R or P filter. For emergencies or instances where the exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
Skin Protection:
Wear protective gloves and clean body-covering clothing.
Eye Protection:
Safety glasses. Maintain eye wash fountain and quick-drench facilities in work area.
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9. Physical and Chemical Properties
Appearance:
White crystalline powder.
Odor:
Odorless.
Solubility:
59.9 g/100g @ 0C (32F)
Specific Gravity:
2.04
pH:
4.5
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
204C (399F)
Melting Point:
100C (212F) Loses water
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
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10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage. Slightly hygroscopic.
Hazardous Decomposition Products:
Phosphorus oxides may form when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
No incompatibility data found.
Conditions to Avoid:
No information found.
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11. Toxicological Information
Anhydrous: Oral Rat LD50: 8290 mg/kg.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sodium Biphosphate (7558-80-7) No No None
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12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
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14. Transport Information
Not regulated.
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15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Sodium Biphosphate (7558-80-7) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sodium Biphosphate (7558-80-7) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sodium Biphosphate (7558-80-7) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sodium Biphosphate (7558-80-7) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Solid)
Australian Hazchem Code: None allocated.
Poison Schedule: None allocated.
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all of the information required by the CPR.
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16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
CAUTION! MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. MAY BE HARMFUL IF SWALLOWED OR INHALED.
Label Precautions:
Avoid contact with eyes, skin and clothing.
Wash thoroughly after handling.
Avoid breathing dust.
Keep container closed.
Use with adequate ventilation.
Label First Aid:
If inhaled, remove to fresh air. Get medical attention for any breathing difficulty. In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes. Get medical attention if irritation develops or persists. If swallowed, give large amounts of water to drink. Never give anything by mouth to an unconscious person. Get medical attention.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 3.
Disclaimer:
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Mallinckrodt Baker, Inc. provides the information contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. MALLINCKRODT BAKER, INC. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, MALLINCKRODT BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.
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Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.) MSDS
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