NILE
CHEMICALS
CAS No.: 7775-27-1 
Molecular Weight: 238.03 
Chemical Formula: Na2O8S2 
Product Codes: 969 
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ -----------
Peroxydisulfuric Acid Disodium Salt 7775-27-1 90 - 100% Yes
Inhalation: Causes irritation to the respiratory tract. Symptoms may 
include sore throat, shortness of breath, inflammation of nasal passages, 
coughing, and wheezing. May cause lung edema, a medical emergency. Any exposure 
may cause an allergic reaction. Asthma-like symptoms and life-threatening shock 
may result. 
Ingestion: Causes severe irritation and possible burns to the mouth and 
throat. Gastrointestinal disturbances may be expected with nausea, abdominal 
pain, and vomiting. 
Skin Contact: Causes severe irritation or burns. Symptoms include 
redness, itching and pain. May cause allergic skin reactions. 
Eye Contact: Can cause severe irritation or burns with eye damage. 
Chronic Exposure: No information found. 
Aggravation of Pre-existing Conditions: Persons with impaired respiratory 
function may be more susceptible to the effects of the substance. 
Inhalation: Remove to fresh air. If not breathing, 
give artificial respiration. If breathing is difficult, give oxygen. Get medical 
attention immediately. 
Ingestion: If swallowed, DO NOT INDUCE VOMITING. Give large quantities of 
water. Never give anything by mouth to an unconscious person. Get medical 
attention immediately. 
Skin Contact: Immediately flush skin with plenty of water for at least 15 
minutes while removing contaminated clothing and shoes. Get medical attention 
immediately. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 
minutes, lifting lower and upper eyelids occasionally. Get medical attention 
immediately. 
Fire: Not combustible, but substance is a strong 
oxidizer and its heat of reaction with reducing agents or combustibles may cause 
ignition. Heating or contact with water releases oxygen which may intensify 
combustion in an existing fire. 
Explosion: An explosion hazard when mixed with finely powdered organic 
matter, metal powder, or reducing agents. Strong oxidants may explode when 
shocked, or if exposed to heat, flame, or friction. Also may act as initiation 
source for dust or vapor explosions. 
Fire Extinguishing Media: Use any means suitable for extinguishing 
surrounding fire. Do not use water. 
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. 
Sealed containers may rupture when heated. 
Remove all sources of ignition. Ventilate area of leak or spill. Keep unnecessary and unprotected people away from area of spill. Wear appropriate personal protective equipment as specified in Section 8
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage and moisture. Isolate from any source of heat or ignition. Avoid storage on wood floors. Separate from incompatibles, combustibles, organic or other readily oxidizable materials. 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.
Airborne Exposure Limits: - ACGIH Threshold Limit 
Value (TLV):0.1 mg/m3 (TWA), Persulfates, Sodium 
Ventilation System: A system of local and/or general exhaust is 
recommended to keep employee exposures below the Airborne Exposure Limits. 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): If the exposure limit is exceeded 
and engineering controls are not feasible, a full facepiece particulate 
respirator (NIOSH type N100 filters) may be worn for up to 50 times the exposure 
limit or the maximum use concentration specified by the appropriate regulatory 
agency or respirator supplier, whichever is lowest. 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-facepiece positive-pressure, air-supplied respirator. WARNING: 
Air-purifying respirators do not protect workers in oxygen-deficient 
atmospheres. 
Skin Protection: Wear impervious protective clothing, including boots, 
gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection: Use chemical safety goggles and/or a full face shield 
where splashing is possible. Maintain eye wash fountain and quick-drench 
facilities in work area. 
Appearance: White powder. 
Odor: Odorless. 
Solubility: Appreciable (> 10%) 
Specific Gravity: 2.40 
pH: 6.0 (1% solution) 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: No information found. 
Melting Point: 180C (356F) Decomposes. 
Vapor Density (Air=1): No information found. 
Vapor Pressure (mm Hg): No information found. 
Evaporation Rate (BuAc=1): No information found. 
Stability: Unstable. Gradually decomposes losing 
oxygen. Decomposes more rapidly at higher temperatures. Stability decreases in 
the presence of moisture. Metals other than stainless steel are apt to cause 
decomposition of persulfate solutions. 
Hazardous Decomposition Products: Oxides of sulfur and the contained 
metal. Oxygen is released. 
Hazardous Polymerization: Will not occur. 
Incompatibilities: Reducing agents, organic material, sodium peroxide, 
water and powdered metals especially aluminum. 
Conditions to Avoid: Moisture, heat, flame, ignition sources, shock, 
friction, incompatibles. 
No LD50/LC50 information found relating to normal routes of occupational exposure.
--------\Cancer Lists\-----------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- ------
Peroxydisulfuric Acid Disodium Salt No No None
(7775-27-1)
Environmental Fate: No information found. 
Environmental Toxicity: No information found. 
Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a RCRA approved waste 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.
Domestic (Land, D.O.T.)
----------------------- 
Proper Shipping Name: SODIUM PERSULFATE 
Hazard Class: 5.1 
UN/NA: UN1505 
Packing Group: III 
Information reported for product/size: 12KG 
International (Water, I.M.O.) 
----------------------------- 
Proper Shipping Name: SODIUM PERSULFATE 
Hazard Class: 5.1 
UN/NA: UN1505 
Packing Group: III 
Information reported for product/size: 12KG 
--------\Chemical Inventory Status - Part 1\-------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- --
Peroxydisulfuric Acid Disodium Salt (7775-27-1) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\-------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Peroxydisulfuric Acid Disodium Salt (7775-27-1) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\--------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- ------
Peroxydisulfuric Acid Disodium Salt No No No No
(7775-27-1)
--------\Federal, State & International Regulations - Part 2\--------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ -----
Peroxydisulfuric Acid Disodium Salt No No No
(7775-27-1)
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: No Fire: Yes Pressure: No
Reactivity: No (Pure / Solid)
Australian Hazchem Code: 2P 
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. 
Disclaimer: Nile Chemicals. 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. NILE CHEMICALS. 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, NILE 
CHEMICALS. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE 
UPON THIS INFORMATION. 
 
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