MSDS Number: P6038 * * * * * Effective Date: 11/10/04 * * * * * Supercedes: 05/14/03
POTASSIUM PHOSPHATE
MONOBASIC
1. Product Identification
Synonyms: Phosphoric acid, monopotassium salt; Potassium dihydrogen
phosphate
CAS No.: 7778-77-0
Molecular Weight: 136.09
Chemical Formula: KH2PO4
Product Codes:
J.T. Baker: 1491, 3245, 3246, 3247, 3248, 3249, 4008, 4921
Mallinckrodt: 2929, 7096, 7100, 7746
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Potassium Phosphate Monobasic 7778-77-0 99 - 100% Yes
3. Hazards Identification
Emergency Overview
--------------------------
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)
------------------------------------------------------------------------------------------
-----------------
Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity Rating: 0 - None
Contact Rating: 1 - Slight
Lab Protective Equip: GOGGLES; LAB COAT; PROPER GLOVES
Storage Color Code: Green (General Storage)
------------------------------------------------------------------------------------------
-----------------
Potential Health Effects
----------------------------------
Inhalation:
May cause mild irritation to the respiratory tract.
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, cardiac effects and central nervous system effects. The toxicity of
phosphates is because of their ability to sequester calcium. Acute
potassium intoxication by mouth is rare because large single doses usually
induce vomiting and because in the absence of pre-existing kidney
damage, potassium is rapidly excreted. Potassium poisoning can result in
heart effects, change in respiration rate, tingling in the extremities,
heaviness in the limbs, nausea and diarrhea.
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:
Persons with impaired kidney function may be more susceptible to the
effects of the substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
If swallowed, give several glasses of water to drink to dilute. If large
amounts were swallowed or symptoms occur, get medical advice. Never
give anything by mouth to an unconscious person.
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.
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.
6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective
equipment as specified in Section 8. Spills: Pick up and place in a suitable
container for reclamation or disposal, using a method that does not
generate dust.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area.
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.
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.
9. Physical and Chemical Properties
Appearance:
White granular powder.
Odor:
Odorless.
Solubility:
22 g in 100 g of water.
Density:
2.34
pH:
No information found.
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
400C (752F) Loses water and becomes metaphosphate
Melting Point:
253C (487F)
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
No information found.
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
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.
11. Toxicological Information
For Potassium Phosphate Monobasic: >4640 mg/kg skin rabbit LD50
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Potassium Phosphate Monobasic No No None
(7778-77-0)
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
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.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Potassium Phosphate Monobasic (7778-77-0) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Potassium Phosphate Monobasic (7778-77-0) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Potassium Phosphate Monobasic (7778-77-0) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Potassium Phosphate Monobasic No No No
(7778-77-0)
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.
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 several glasses of water to drink to dilute. If
large amounts were swallowed or symptoms occur, get medical advice.
Never give anything by mouth to an unconscious person.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 3, 11.
Disclaimer:
************************************************************
************************************
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.
************************************************************
************************************
Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)
|