Peroxydisulfuric acid, diammonium salt
Diammonium peroxydisulphate
Diammonium persulfate
H8N2O8S2 / (NH4)2S2O8
Molecular mass: 228.2
ICSC # 0632
CAS # 7727-54-0
RTECS # SE0350000
UN # 1444
EC # 016-060-00-6
Pi, Study
|
|
Types of Hazard/ Exposure
|
Acute Hazards/ Symptoms
|
Prevention
|
First Aid/
Fire Fighting
|
|
FIRE
|
Not combustible but enhances combustion of other substances.
Gives off irritating or toxic fumes (or gases) in a fire.
|
NO contact with combustibles.
|
In case of fire in the surroundings: use appropriate extinguishing media.
|
|
Explosion
|
Risk of fire and explosion on contact with combustible substances and reducing agents.
|
|
In case of fire: keep drums, etc., cool by spraying with water.
|
|
|
|
Exposure
|
|
PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
|
|
|
•Inhalation
|
Cough.
Sore throat.
Wheezing.
Laboured breathing.
|
Local exhaust or breathing protection.
|
Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
|
|
•Skin
|
Redness.
Burning sensation.
Pain.
|
Protective gloves.
|
First rinse with plenty of water, then remove contaminated clothes and rinse again.
|
|
•Eyes
|
Redness.
Pain.
|
Safety goggles,
or eye protection in combination with breathing protection if powder.
|
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
|
|
•Ingestion
|
Nausea.
Diarrhoea.
Vomiting.
Sore throat.
|
Do not eat, drink, or smoke during work.
Wash hands before eating.
|
Give one or two glasses of water to drink.
Refer for medical attention.
|
|
Spillage Disposal
|
Storage
|
Packaging & Labelling
|
Sweep spilled substance into containers.
Carefully collect remainder,
Then wash away with plenty of water.
(Extra personal protection: P2 filter respirator for harmful particles.)
Do NOT absorb in saw-dust or other combustible absorbents.
Do NOT let this chemical enter the environment.
|
Dry.
Well closed.
Separated from
combustible and reducing substances,
powdered metals
,
strong bases.
|
O symbol
Xn symbol
R: 8-22-36/37/38-42/43
S: 2-22-24-26-37
UN Hazard Class: 5.1
UN Packing Group: III
|
|
|
|
Important Data
|
Physical State; Appearance:
COLOURLESS
CRYSTALS
OR
WHITE
POWDER
Physical Dangers:
Chemical Dangers:
The substance is a strong oxidant and reacts with combustible and reducing materials.
The substance decomposes
on heating
producing
toxic and corrosive fumes
including
ammonia
,
nitrogen oxides
and
sulfur oxides
.
If in solution,
reacts violently with iron, powdered aluminium and silver salts.
The solution in water is a medium strong acid.
Occupational Exposure Limits:
TLV: (as persulfates) 0.1 mg/m3 as TWA (ACGIH 2001).
MAK: sensitization of respiratory tract and skin (Sah); (DFG 2006).
|
Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quicklyon spraying or when dispersed, especially if powdered.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
Inhalation of dust may cause asthma-like reactions.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged inhalation exposure may cause asthma.
Repeated or prolonged contact with skin may cause dermatitis.
Repeated or prolonged contact may cause skin sensitization.
May cause general allergic reaction, like urticaria or shock.
|
|
Physical
Properties
|
Decomposes at 120 °C
Density: 1.9
g/cm3
|
Solubility in water, g/100 ml at 20°C: 58.2
good
|
|
Environmental
Data
|
The substance is harmful to aquatic organisms.
|
|
N O T E S
|
Rinse contaminated clothes (fire hazard) with plenty of water.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Do NOT take working clothes home.
NFPA Code: H2; F1; R1;
Transport Emergency Card: TEC (R)-51G02-III
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits, Physical Properties.
|
|
|
ADDITIONAL INFORMATION
|
|
|
|
ICSC: 0632
|
AMMONIUM PERSULFATE
|
|
(C) IPCS, CEC, 1994
|
|
|
IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
|
|
|
