| Sulfuric
acid |
CAS 7664-93-9 |
| H2SO4 |
RTECS WS5600000 |
Synonyms
& Trade Names
Battery acid, Hydrogen sulfate, Oil of vitriol, Sulfuric
acid (aqueous) |
DOT ID & Guide
1830 137
1831 137 (fuming)
1832 137 (spent) |
Exposure
Limits |
NIOSH REL:
TWA 1 mg/m3 |
| OSHA PEL:
TWA 1 mg/m3 |
| IDLH 15
mg/m3 See: 7664939 |
Conversion |
Physical Description
Colorless to dark-brown, oily, odorless liquid. [Note: Pure
compound is a solid below 51°F. Often used in an aqueous
solution.] |
MW: 98.1
|
BP: 554°F
|
FRZ: 51°F
|
Sol: Miscible
|
VP: 0.001 mmHg
|
IP: ?
|
|
Sp.Gr: 1.84 (96-98% acid)
|
Fl.P: NA
|
UEL: NA
|
LEL: NA
|
|
| Noncombustible Liquid,
but capable of igniting finely divided combustible materials. |
Incompatibilities
& Reactivities
Organic materials, chlorates, carbides, fulminates, water,
powdered metals [Note: Reacts violently with water with
evolution of heat. Corrosive to metals.] |
Personal Protection
& Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash (>1%), Quick drench (>1%)
|
First Aid
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator
Recommendations NIOSH/OSHA
Up to 15 mg/m3: (APF =
25) Any supplied-air respirator operated in a continuous-flow
mode£/(APF = 25) Any powered, air-purifying
respirator with acid gas cartridge(s) in combination with a high-efficiency
particulate filter£
(APF = 50) Any chemical cartridge respirator with a full
facepiece and acid gas cartridge(s) in combination with a high-efficiency
particulate filter/(APF = 50) Any air-purifying, full-facepiece
respirator (gas mask) with a chin-style, front- or back-mounted
acid gas canister having a high-efficiency particulate filter/(APF
= 50) Any self-contained breathing apparatus with a full
facepiece/(APF = 50) Any supplied-air respirator with a full
facepiece
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 acid gas canister having a high-efficiency
particulate filter/Any appropriate escape-type, self-contained
breathing apparatus |
| Exposure Routes inhalation,
ingestion, skin and/or eye contact |
| Symptoms Irritation
eyes, skin, nose, throat; pulmonary edema, bronchitis; emphysema;
conjunctivitis; stomatis; dental erosion; eye, skin burns;
dermatitis |
| Target
Organs Eyes, skin, respiratory system, teeth |
|
