MSDS Name:   Arsenic standard metal solution, 1000 ppm in 2% HNO3
Synonym:   None.
Company:   AboutChem.com

**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 1327-53-3 |Arsenic trioxide | 0.1 | 215-481-4 |
|----------------|--------------------------------------|----------|-----------|
| 7697-37-2 |Nitric acid | 2 | 231-714-2 |
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | 97.9 | 231-791-2 |
|----------------|--------------------------------------|----------|-----------|
| 7778-39-4 |Arsenic acid | 0.1 | 231-901-9 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: XN N
Risk Phrases: 20/22 37/38 41 50/53

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Harmful by inhalation and if swallowed. Irritating to respiratory
system and skin. Risk of serious damage to eyes. Very toxic to
aquatic organisms, may cause long-term adverse effects in the aquatic
environment.

Potential Health Effects
Eye:
Causes severe eye irritation and possible burns.
Skin:
Causes skin irritation. Concentrated nitric acid dyes human skin
yellow on contact.
Ingestion:
May cause irritation of the digestive tract and possible burns.
Inhalation:
Causes respiratory tract irritation. Inhalation of arsenic compounds
may lead to irritation of the respiratory tract and to possible nasal
perforation.
Chronic:
Repeated inhalation may cause chronic bronchitis. Repeated exposure
may cause erosion of teeth. Arsenic trioxide can cause cancer in
humans. Other long term effects include: anemia, liver and kidney
damage. Chronic exposure to arsenical dust may cause shortness of
breath, nausea, chest pains, and garlic odor. Inorganic arsenic
compounds may cause skin and lung cancers in humans.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes.
Ingestion:
Do not induce vomiting. 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:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If breathing is difficult, give oxygen. Do NOT use
mouth-to-mouth resuscitation. If breathing has ceased apply
artificial respiration using oxygen and a suitable mechanical device
such as a bag and a mask.
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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Use water
spray to keep fire-exposed containers cool. May react with metal
surfaces to form flammable and explosive hydrogen gas. Approach fire
from upwind to avoid hazardous vapors and toxic decomposition
products. Concentrated nitric acid is a strong oxidizer and contact
with other material may cause fire.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill using an absorbent, non-combustible material such as
earth, sand, or vermiculite. Do not use combustible materials such
as sawdust. Provide ventilation. Approach spill from upwind.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Avoid breathing
vapor or mist. Do not use with metal spatula or other metal items. Do
not get in eyes. Avoid contact with skin and clothing.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible
substances. Keep away from metals. Store away from alkalies.

**** 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# 1327-53-3:
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, inorganic compounds): 0.01 mg/
VLE (as As)
France - VME: 0.2 mg/m3 VME (as As)
Germany: 0.1 mg/m3 TWA (inhalable fraction)
Japan: (listed as arsenic compounds, n.o.s.): 3 ??g/m3 OEL (refere
value, as As)
Malaysia: (listed as arsenic, inorganic compounds): 0.01 mg/m3 TW
(as As, except arsine)
Netherlands: (listed as arsenic, inorganic compounds): 0.1 mg/m3
(as As)
Netherlands: (listed as arsenic, inorganic compounds): 0.050 mg/m
MAC (as As)
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: 0.1 mg/m3 VLA-ED (as As)
CAS# 7697-37-2:
United Kingdom, WEL - TWA: 2 ppm TWA; 5.2 mg/m3 TWA
United Kingdom, WEL - STEL: 4 ppm STEL; 10 mg/m3 STEL
United States OSHA: 2 ppm TWA; 5 mg/m3 TWA
Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE
Belgium - STEL: 4 ppm VLE; 10 mg/m3 VLE
France - VME: 2 ppm VME; 5 mg/m3 VME
France - VLE: 4 ppm VLE; 10 mg/m3 VLE
Germany: 2 ppm TWA; 5.2 mg/m3 TWA
Japan: 2 ppm OEL; 5.2 mg/m3 OEL
Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA
Netherlands: 0.5 ppm STEL; 1.3 mg/m3 STEL
Russia: 2 mg/m3 TWA
Spain: 2 ppm VLA-ED; 5.2 mg/m3 VLA-ED
Spain: 4 ppm VLA-EC; 10 mg/m3 VLA-EC
CAS# 7732-18-5:

CAS# 7778-39-4:

Germany: 0.1 mg/m3 TWA (inhalable fraction)
Spain: 0.1 mg/m3 VLA-ED

Personal Protective Equipment

Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate 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: Acidic
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
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: 0

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures. The yellow color is
due to release of nitrogen dioxide on exposure to light.
Conditions to Avoid:
High temperatures, light, confined spaces.
Incompatibilities with Other Materials:
Metals, strong reducing agents, strong bases.
Hazardous Decomposition Products:
Oxides of nitrogen, oxides of arsenic.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 1327-53-3: CG3325000
CAS# 7697-37-2: QU5775000 QU5900000
CAS# 7732-18-5: ZC0110000
CAS# 7778-39-4: CG0700000
LD50/LC50:
CAS# 1327-53-3: Oral, mouse: LD50 = 20 mg/kg; Oral, rabbit: LD50 =
20190 ug/kg; Oral, rat: LD50 = 10 mg/kg.
CAS# 7697-37-2: Inhalation, rat: LC50 = 260 mg/m3/30M; Inhalation,
rat: LC50 = 130 mg/m3/4H; Inhalation, rat: LC50 = 67 ppm(NO2)/4H.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7778-39-4: Oral, rat: LD50 = 48 mg/kg.
Carcinogenicity:
Arsenic trioxide -
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).
Nitric acid -
Not listed by ACGIH, IARC, or NTP.
Water -
Not listed by ACGIH, IARC, or NTP.
Arsenic acid -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****



**** 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: CORROSIVE LIQUID, ACIDIC, INORGANIC, NOS(Nitric ac
id solution)
Hazard Class: 8
UN Number: 3264
Packing Group: III
IMO
Shipping Name: CORROSIVE LIQUID, ACIDIC, INORGANIC, NOS(Nitric ac
id solution)
Hazard Class: 8
UN Number: 3264
Packing Group: III
RID/ADR
Shipping Name: CORROSIVE LIQUID, ACIDIC, INORGANIC, NOS(Nitric ac
id solution)
Hazard Class: 8
UN Number: 3264
Packing group: III
USA RQ: CAS# 1327-53-3: 1 lb final RQ; 0.454 kg final RQ
USA RQ: CAS# 7697-37-2: 1000 lb final RQ; 454 kg final RQ
USA RQ: CAS# 7778-39-4: 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: XN N
Risk Phrases:
R 20/22 Harmful by inhalation and if swallowed.
R 37/38 Irritating to respiratory system and skin.
R 41 Risk of serious damage to eyes.
R 50/53 Very toxic 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# 1327-53-3: 3
CAS# 7697-37-2: 1
CAS# 7732-18-5: No information available.
CAS# 7778-39-4: 3
Canada
CAS# 1327-53-3 is listed on Canada's DSL List.
CAS# 7697-37-2 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7778-39-4 is listed on Canada's DSL List.
CAS# 1327-53-3 is listed on Canada's Ingredient Disclosure List.
CAS# 7697-37-2 is listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 7778-39-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1327-53-3 is listed on the TSCA inventory.
CAS# 7697-37-2 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7778-39-4 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

Text for R-phrases from Section 2
MSDS Creation Date: 4/16/2001 Revision #4 Date: 9/02/2003

The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
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such information, and we assume no liability resulting from its use. Users
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damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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