NIOSH Pocket Guide to Chemical Hazards

Hydrogen peroxide

CAS 7722-84-1

H2O2

RTECS MX0900000
Synonyms & Trade Names
High-strength hydrogen peroxide, Hydrogen dioxide, Hydrogen peroxide (aqueous), Hydroperoxide, Peroxide
DOT ID & Guide
2984 140 (8-20% solution)
2014 140 (20-60% solution)
2015 143 (>60% solution)

Exposure
Limits

NIOSH REL: TWA 1 ppm (1.4 mg/m3)
OSHA PEL: TWA 1 ppm (1.4 mg/m3)
IDLH 75 ppm See: 772841 Conversion 1 ppm = 1.39 mg/m3
Physical Description
Colorless liquid with a slightly sharp odor. [Note: The pure compound is a crystalline solid below 12°F. Often used in an aqueous solution.]
MW: 34.0
BP: 286°F
FRZ: 12°F
Sol: Miscible
VP(86°F): 5 mmHg
IP: 10.54 eV

Sp.Gr: 1.39
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Liquid, but a powerful oxidizer.
Incompatibilities & Reactivities
Oxidizable materials, iron, copper, brass, bronze, chromium, zinc, lead, silver, manganese. [Note: Contact with combustible material may result in SPONTANEOUS combustion.]
Measurement Methods
OSHA ID126SG
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
Respirator Recommendations NIOSH/OSHA
Up to 10 ppm:
(APF = 10) Any supplied-air respirator*
Up to 25 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
Up to 50 ppm:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 75 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, nose, throat; corneal ulcer; erythema (skin redness), skin vesiculation; bleaching hair
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION   See ICSC CARD: 0164