**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | 99.35 | 231-791-2 |
|----------------|--------------------------------------|----------|-----------|
| 7784-46-5 |Sodium arsenite | 0.65 | 232-070-5 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: T
Risk Phrases: 45 52/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
May cause cancer. Harmful to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. Exposure to arsenic compounds may produce
hyperpigmentation of the skin and hyperkeratoses of plantar and
palmar surfaces as well as both primary irritation and sensitization
types. May be absorbed through intact skin.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and
diarrhea. All soluble arsenic (As) compounds are considered to be
poisonous to humans. Inorganic arsenic is more toxic than organic
arsenic. Organic arsenic is excreted more rapidly than inorganic
arsenic. Arsenic 5+ is excreted more rapidly than arsenic 3+.
Inhalation:
May cause respiratory tract irritation. Inhalation of arsenic
compounds may lead to irritation of the respiratory tract and to
possible nasal perforation. Long-term exposure to arsenic compounds
may produce impairment of peripheral circulation.
Chronic:
Inorganic arsenic compounds may cause skin and lung cancers in
humans.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. Get medical
aid.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Substance is noncombustible.
Extinguishing Media:
For small fires, use water spray, dry chemical, carbon dioxide or
chemical foam.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Provide ventilation. Evacuate
unnecessary personnel. U.S. regulations require reporting spills and
releases to soil, water and air in excess of reportable quantities.
Control runoff and isolate discharged material for proper disposal.
Do not let this chemical enter the environment.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Wash hands before eating. Remove
contaminated clothing and wash before reuse. Avoid contact with eyes,
skin, and clothing. Avoid breathing spray or mist. Use only with
adequate ventilation or respiratory protection.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits. See 29CFR 1910.1018 for regulatory
requirements pertaining to all occupational exposures to inorganic
arsenic.
Exposure Limits
CAS# 7732-18-5:
CAS# 7784-46-5:
United Kingdom, WEL - TWA: (listed as arsenic compounds, n.o.s.):
mg/m3 TWA (except arsine, as As)
United Kingdom, WEL - STEL: (listed as arsenic compounds, n.o.s.)
0.3 mg/m3 STEL (except arsine, as As)
United States OSHA: 0.5 mg/m3 TWA (listed under Arsenic).5 ??g/m3
Action Level (as As); 10 ??g/m3 PEL (as As. Cancer hazard - see 2
CFR 1 910.1018. Arsine excepted) (listed under Arsenic, inorgani
compounds).
Belgium - TWA: (listed as arsenic): 0.01 mg/m3 VLE
Japan: (listed as arsenic compounds, n.o.s.): 3 ??g/m3 OEL (refere
value, as As)
Malaysia: (listed as arsenic): 0.01 mg/m3 TWA
Netherlands: (listed as arsenic, inorganic compounds): 0.1 mg/m3
(as As)
Netherlands: (listed as arsenic): 0.050 mg/m3 MAC
Russia: (listed as arsenic, inorganic compounds): 0.04 mg/m3 TWA
As)
Russia: (listed as arsenic, inorganic compounds): 0.01 mg/m3 STEL
As)
Spain: (listed as arsenic compounds, n.o.s.): 0.1 mg/m3 VLA-ED (a
As)
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: colorless
Odor: Not available.
pH: Not available.
Vapor Pressure: Not applicable.
Viscosity: Not applicable.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: Not available.
Molecular Formula: Solution
Molecular Weight: 129.91
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable. Absorbs carbon dioxide from the air.
Conditions to Avoid:
Extreme temperatures.
Incompatibilities with Other Materials:
Strong acids.
Hazardous Decomposition Products:
Oxides of arsenic.
Hazardous Polymerization: Has not been reported
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7732-18-5: ZC0110000
CAS# 7784-46-5: CG3675000
LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7784-46-5: Oral, rat: LD50 = 41 mg/kg; Skin, rat: LD50 = 150
mg/kg.
Carcinogenicity:
Water -
Not listed by ACGIH, IARC, or NTP.
Sodium arsenite -
California: carcinogen, initial date 2/27/87 (listed as Arsenic, inorg
NTP: Known carcinogen (listed as Arsenic, inorganic compounds).
IARC: Group 1 carcinogen (listed as Arsenic).
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Arsenic compounds tend to be accumulated by oysters and other
shellfish.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: SODIUM ARSENITE, AQUEOUS SOLUTION
Hazard Class: 6.1
UN Number: 1686
Packing Group: III
IMO
Shipping Name: SODIUM ARSENITE, AQUEOUS SOLUTION
Hazard Class: 6.1
UN Number: 1686
Packing Group: III
RID/ADR
Shipping Name: SODIUM ARSENITE, AQUEOUS SOLUTION
Hazard Class: 6.1
UN Number: 1686
Packing group: III
USA RQ: CAS# 7784-46-5: 1 lb final RQ; 0.454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 45 May cause cancer.
R 52/53 Harmful to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 20/21 When using do not eat, drink or smoke.
S 28 After contact with skin, wash immediately
with...
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7732-18-5: No information available.
CAS# 7784-46-5: 3
Canada
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7784-46-5 is listed on Canada's DSL List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 7784-46-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7784-46-5 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
MSDS Creation Date: 12/12/1997 Revision #5 Date: 1/07/2003
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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