Name:
Sodium Hydroxide/Sodium Thiosulfate Solution
Synonym:
Non
CAS:
1310-73-2
Section 1 - Chemical Product
MSDS Name:Sodium Hydroxide/Sodium Thiosulfate Solution
Synonym:Non
Synonym:Non
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 1310-73-2 | Sodium hydroxide | 40.0 | 215-185-5 |
| Hazard Symbols: C Risk Phrases: 35 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Causes severe burns.Corrosive.
Potential Health Effects
Eye:
May cause eye irritation and possible burns. May cause eye injury.
Skin:
May cause severe irritation and possible burns.
Ingestion:
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.
Inhalation:
May cause allergic respiratory reaction.
Chronic:
Not available.
Causes severe burns.Corrosive.
Potential Health Effects
Eye:
May cause eye irritation and possible burns. May cause eye injury.
Skin:
May cause severe irritation and possible burns.
Ingestion:
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.
Inhalation:
May cause allergic respiratory reaction.
Chronic:
Not available.
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 not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
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 not breathing, give artificial respiration. If breathing is difficult, give oxygen.
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. Contact with moisture or water may generate sufficient heat to ignite nearby combustible materials.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use water spray, dry chemical, carbon dioxide, or chemical foam.
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. Contact with moisture or water may generate sufficient heat to ignite nearby combustible materials.
Extinguishing Media:
Use water spray to cool fire-exposed containers. 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.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids. Keep away from water. Keep away from metals. Keep away from organic halogens.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids. Keep away from water. Keep away from metals. Keep away from organic halogens.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 1310-73-2: United Kingdom, WEL - STEL: 2 mg/m3 STEL United States OSHA: 2 mg/m3 TWA Belgium - TWA: 2 mg/m3 VLE France - VME: 2 mg/m3 VME Germany: 2 mg/m3 TWA (inhalable fraction) Japan: 2 mg/m3 Ceiling Malaysia: 2 mg/m3 Ceiling Spain: 2 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 7772-98-7: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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.
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 1310-73-2: United Kingdom, WEL - STEL: 2 mg/m3 STEL United States OSHA: 2 mg/m3 TWA Belgium - TWA: 2 mg/m3 VLE France - VME: 2 mg/m3 VME Germany: 2 mg/m3 TWA (inhalable fraction) Japan: 2 mg/m3 Ceiling Malaysia: 2 mg/m3 Ceiling Spain: 2 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 7772-98-7: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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: Not available.
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
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:
Solubility in water:
Specific Gravity/Density:
Molecular Formula:
Molecular Weight:
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable.
Conditions to Avoid:
High temperatures, incompatible materials, moisture, contact with water, acids.
Incompatibilities with Other Materials:
Sodium thiosulfate is incompatible with nitrite, strong acids, strong oxidizers, and water reactive materials. It is deliquescent in moist air and efflorescnet in warm dry air. Sodium hydroxide generates large amounts of heat when in contact with water and may steam and splatter. It reacts with mineral acids to form corresponding salts.
It reacts with weak acid gases like hydrogen sulfide sulfur dioxide and carbon dioxide. It ignites when in contact with cinnamaldehyde or zinc and reacts explosively with a mixture of chloroform and methane. It is corrosive to metals such as aluminum, tin, zinc, as well as alloys such as steel and may cause formation of flammable hydrogen gas.
Hazardous Decomposition Products:
Oxides of sulfur, toxic fumes of sodium oxide, hydrogen sulfide, sodium peroxide fumes.
Hazardous Polymerization: Has not been reported
Stable.
Conditions to Avoid:
High temperatures, incompatible materials, moisture, contact with water, acids.
Incompatibilities with Other Materials:
Sodium thiosulfate is incompatible with nitrite, strong acids, strong oxidizers, and water reactive materials. It is deliquescent in moist air and efflorescnet in warm dry air. Sodium hydroxide generates large amounts of heat when in contact with water and may steam and splatter. It reacts with mineral acids to form corresponding salts.
It reacts with weak acid gases like hydrogen sulfide sulfur dioxide and carbon dioxide. It ignites when in contact with cinnamaldehyde or zinc and reacts explosively with a mixture of chloroform and methane. It is corrosive to metals such as aluminum, tin, zinc, as well as alloys such as steel and may cause formation of flammable hydrogen gas.
Hazardous Decomposition Products:
Oxides of sulfur, toxic fumes of sodium oxide, hydrogen sulfide, sodium peroxide fumes.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 1310-73-2: WB4900000 CAS# 7732-18-5: ZC0110000 CAS# 7772-98-7: XN6476000 LD50/LC50:
CAS# 1310-73-2: Draize test, rabbit, eye: 400 ug Mild; Draize test, rabbit, eye: 1% Severe; Draize test, rabbit, eye: 50 ug/24H Severe; Draize test, rabbit, eye: 1 mg/24H Severe; Draize test, rabbit, skin: 500 mg/24H Severe.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7772-98-7.
Carcinogenicity:
Sodium hydroxide - Not listed by ACGIH, IARC, or NTP.
Water - Not listed by ACGIH, IARC, or NTP.
Sodium thiosulfate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 1310-73-2: WB4900000 CAS# 7732-18-5: ZC0110000 CAS# 7772-98-7: XN6476000 LD50/LC50:
CAS# 1310-73-2: Draize test, rabbit, eye: 400 ug Mild; Draize test, rabbit, eye: 1% Severe; Draize test, rabbit, eye: 50 ug/24H Severe; Draize test, rabbit, eye: 1 mg/24H Severe; Draize test, rabbit, skin: 500 mg/24H Severe.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7772-98-7.
Carcinogenicity:
Sodium hydroxide - Not listed by ACGIH, IARC, or NTP.
Water - Not listed by ACGIH, IARC, or NTP.
Sodium thiosulfate - 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: SODIUM HYDROXIDE, SOLUTION
Hazard Class: 8
UN Number: 1824
Packing Group: II
IMO
Shipping Name: SODIUM HYDROXIDE, SOLUTION
Hazard Class: 8
UN Number: 1824
Packing Group: II
RID/ADR
Shipping Name: SODIUM HYDROXIDE, SOLUTION
Hazard Class: 8
UN Number: 1824
Packing group: II
USA RQ: CAS# 1310-73-2: 1000 lb final RQ; 454 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 35 Causes severe burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 27 Take off immediately all contaminated clothing.
S 37/39 Wear suitable gloves and eye/face
protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 1310-73-2: 1
CAS# 7732-18-5: No information available.
CAS# 7772-98-7: 0
Canada
CAS# 1310-73-2 is listed on Canadas DSL List.
CAS# 7732-18-5 is listed on Canadas DSL List.
CAS# 7772-98-7 is listed on Canadas DSL List.
CAS# 1310-73-2 is listed on Canadas Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canadas Ingredient Disclosure List.
CAS# 7772-98-7 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1310-73-2 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7772-98-7 is listed on the TSCA inventory.
