Material Safety Data Sheet
Ammonium orthoarsenate trihydrate, 99.999%

ACC# 22527
Section 1 - Chemical Product and Company Identification
MSDS Name: Ammonium orthoarsenate trihydrate, 99.999%
Catalog Numbers: AC192480000, AC192480050
Synonyms: Triammonium orthoarsenate trihydrate.
Company Identification:
              Acros Organics N.V.
              One Reagent Lane
              Fair Lawn, NJ 07410
For information in North America, call: 800-ACROS-01
For emergencies in the US, call CHEMTREC: 800-424-9300

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
13477-86-6 Ammonium orthoarsenate trihydrate 99.999 unlisted

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: Not available.
Danger! Causes eye, skin, and respiratory tract irritation. Contains inorganic arsenic. Harmful if inhaled or swallowed. Cancer hazard.
Target Organs: Kidneys, liver, lungs, skin.


Potential Health Effects
Eye: Causes eye irritation.
Skin: Causes skin irritation.
Ingestion: May cause severe irritation of the digestive tract.
Inhalation: May cause severe respiratory tract irritation.
Chronic: May cause liver and kidney damage. 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 immediately.
Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
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. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.

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.
Extinguishing Media: In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Flash Point: Not available
Autoignition Temperature: Not available.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: ; Flammability: ; Instability:

Section 6 - Accidental Release Measures


General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Clean up spills immediately, observing precautions in the Protective Equipment section. Wear a self contained breathing apparatus and appropriate personal protection. (See Exposure Controls, Personal Protection section). Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. Evacuate unnecessary personnel. Do not let this chemical enter the environment.

Section 7 - Handling and Storage


Handling: Wash thoroughly after handling. Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Use only with adequate ventilation or respiratory protection. Change contaminated clothing promptly. Do not take working clothes home.
Storage: Store in a cool, dry, well-ventilated area away from incompatible substances. Poison room locked. Keep containers tightly closed.

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
Chemical Name ACGIH NIOSH OSHA - Final PELs
Ammonium orthoarsenate trihydrate 0.01 mg/m3 TWA (as As) (listed under Arsenic, inorganic compounds). 5 mg/m3 IDLH (as As) (listed under Arsenic, inorganic compounds). 10 ęg/m3 TWA (as As) (listed under Arsenic, inorganic compounds).5 ęg/m3 Action Level (as As); 10 ęg/m3 TWA (as As, Cancer hazard - see 29 CFR 19 10.1018, except Arsine) (listed under Arsenic, inorga nic compounds).

OSHA Vacated PELs: Ammonium orthoarsenate trihydrate: No OSHA Vacated PELs are listed for this chemical.
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 gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators: Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Section 9 - Physical and Chemical Properties


Physical State: Solid
Appearance: Not available.
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point:Not available.
Decomposition Temperature:Not available.
Solubility: Not available.
Specific Gravity/Density:Not available.
Molecular Formula:H12AsN3O4.3H2O
Molecular Weight:247.08

Section 10 - Stability and Reactivity


Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Dust generation.
Incompatibilities with Other Materials: Strong acids, strong bases, strong oxidizing agents.
Hazardous Decomposition Products: Nitrogen oxides, oxides of arsenic.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information


RTECS#:      
CAS# 13477-86-6 unlisted.
LD50/LC50:
Not available.

Carcinogenicity:
CAS# 13477-86-6:


Epidemiology: Epidemiological studies have demonstrated evidence of a causal relationship between environmental, occupational, and medicinal exposure of humans to inorganic arsenic and cancer of the skin and lungs.
Teratogenicity: No data available.
Reproductive Effects: No data available.
Mutagenicity: No data available.
Neurotoxicity: No data available.
Other Studies:

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: DOT regulated - small quantity provisions apply (see 49CFR173.4) No information available.
Hazard Class:
UN Number:
Packing Group:

Section 15 - Regulatory Information

US FEDERAL
TSCA
     CAS# 13477-86-6 is not listed on the TSCA inventory. It is for research and development use only.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
Section 313
     This material contains Ammonium orthoarsenate trihydrate (listed as Arsenic, inorganic compounds), 99.999%, (CAS# 13477-86-6) which is subject to the reporting requirements of Section 313 of SARA Title III and 40 CFR Part 373.
Clean Air Act:
     CAS# 13477-86-6 (listed as Arsenic, inorganic compounds) is listed as      a hazardous air pollutant (HAP).
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA. CAS# 13477-86-6 is listed as a Toxic Pollutant under the Clean Water Act.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 13477-86-6 can be found on the following state right to know lists: California, (listed as Arsenic compounds, n.o.s.), New Jersey, (listed as Arsenic compounds, n.o.s.), Pennsylvania, (listed as Arsenic, inorganic compounds), Pennsylvania, (listed as Arsenic compounds, n.o.s.), Minnesota, (listed as Arsenic, inorganic compounds).

California Prop 65
The following statement(s) is(are) made in order to comply with the California Safe Drinking Water Act:
WARNING: This product contains Ammonium orthoarsenate trihydrate, listed as `Arsenic, inorganic compounds', a chemical known to the state of California to cause cancer.
California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
     T N
Risk Phrases:
     R 23/25 Toxic by inhalation and if swallowed.
     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 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 hazardou
     s waste.
     S 28A After contact with skin, wash immediately with plenty of water
     .
     S 61 Avoid release to the environment. Refer to special instructions
     /safety data sheets.

WGK (Water Danger/Protection)
     CAS# 13477-86-6: No information available.
Canada - DSL/NDSL
None of the chemicals in this product are listed on the DSL or NDSL list.
Canada - WHMIS
     This product has a WHMIS classification of D2A.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 13477-86-6 is not listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 10/27/1998
Revision #4 Date: 11/20/2008

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 event shall Fisher 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 Fisher has been advised of the possibility of such damages.