Sodium Thiosulfate, Pentahydrate
Material Safety Data Sheet
Sodium Thiosulfate, Pentahydrate
| Section 1 - Chemical Product and Company Identification | |
| MSDS Name: | Sodium Thiosulfate, Pentahydrate |
| Catalog Numbers: | AC123370000, AC123370010, AC123370025 |
| Synonyms: | Sodium Hyposulfite; Disodium Salt Pentahydrate; Disodium Thiosulfate Pentahydrate. |
| 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 | |||||||||
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| Hazard Symbols: | None listed. | ||||||||
| Risk Phrases: | None listed. | ||||||||
| Section 3 - Hazards Identification |
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EMERGENCY OVERVIEW Appearance: colorless to white solid. Caution!
May cause eye and skin irritation. Hygroscopic. The toxicological properties
of this material have not been fully investigated. May cause respiratory and
digestive tract irritation.
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| 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: Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse. Ingestion: Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Inhalation: Remove from exposure 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.
Wear appropriate protective clothing to prevent contact with skin and eyes.
Wear a self-contained breathing apparatus (SCBA) to prevent contact with
thermal decomposition products. Extinguishing Media: Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam. Flash Point: Not applicable. Autoignition Temperature: Not applicable. Explosion Limits, Lower: Not available. -------------------------->Upper: Not available. NFPA Rating: (estimated) Health: 1; Flammability: 0; Instability: 0 |
| Section 6 - Accidental Release Measures |
| General Information: Use proper personal protective
equipment as indicated in Section 8. Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation. |
| Section 7 - Handling and Storage |
| Handling: Wash thoroughly after handling. Use with
adequate ventilation. Minimize dust generation and accumulation. Avoid
prolonged or repeated contact with skin. Avoid contact with eyes, skin, and
clothing. Keep container tightly closed. Avoid ingestion and inhalation. Storage: Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids. Store protected from moisture. |
| 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 ventilation to keep airborne concentrations low. | ||||||||
Exposure Limits
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| OSHA Vacated PELs: Sodium Thiosulfate, Pentahydrate: 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: A respiratory protection program that meets OSHA's 29 CFR §1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. |
| Section 9 - Physical and Chemical Properties | |
| Physical State: | Solid |
| Appearance: | colorless to white |
| Odor: | odorless |
| 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: | 48.5 deg C |
| Decomposition Temperature: | > 45 deg C |
| Solubility: | 680 G/L WATER (20°C) |
| Specific Gravity/Density: | 1.7290g/cm3 |
| Molecular Formula: | Na2O3S2.5H2O |
| Molecular Weight: | 248.18 |
| Section 10 - Stability and Reactivity |
| Chemical Stability: Stable. Conditions to Avoid: Incompatible materials, acids, strong oxidants, exposure to moist air or water. Incompatibilities with Other Materials: Moisture, strong acids, strong bases, strong oxidizing agents. Hazardous Decomposition Products: Irritating and toxic fumes and gases, hydrogen sulfide, sodium oxide. Hazardous Polymerization: Has not been reported. |
| Section 11 - Toxicological Information |
| RTECS#: CAS# 10102-17-7: WE6660000 LD50/LC50: Not available. Carcinogenicity: CAS# 10102-17-7: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. Epidemiology: No information available. Teratogenicity: No information available. Reproductive Effects: No information available. Neurotoxicity: No information available. Mutagenicity: No information available. Other Studies: See actual entry in RTECS for complete information. |
| 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 | ||||||||||||||||||||||||||||||
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| Section 15 - Regulatory Information |
| US FEDERAL TSCA CAS# 10102-17-7 is not on the TSCA Inventory. It is a hydrate and exempt from TSCA Inventory requirements (40CFR720.3(u)(2)). 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. SARA Section 302 (RQ) None of the chemicals in this material have an RQ. Section 302 (TPQ) None of the chemicals in this product have a TPQ. Section 313 No chemicals are reportable under Section 313. Clean Air Act: This material does not contain any hazardous air pollutants. 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. None of the chemicals in this product are listed as Toxic Pollutants under the CWA. OSHA: None of the chemicals in this product are considered highly hazardous by OSHA. STATE CAS# 10102-17-7 is not present on state lists from CA, PA, MN, MA, FL, or NJ. 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: Not available. Risk Phrases: Safety Phrases: S 37 Wear suitable gloves. S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). S 28A After contact with skin, wash immediately with plenty of water. WGK (Water Danger/Protection) CAS# 10102-17-7: 0 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 D2B. Canadian Ingredient Disclosure List Exposure Limits |
| Section 16 - Additional Information | |
| MSDS Creation Date: | 9/02/1997 |
| Revision #3 Date: | 8/02/2000 |
| 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. | |
