Material Safety Data Sheet
Methylsulfuric acid potassium salt

ACC# 95639
Section 1 - Chemical Product and Company Identification

MSDS Name: Methylsulfuric acid potassium salt
Catalog Numbers: AC299910000, AC299910100, AC299910250, AC414890000, AC414890100, AC414891000, BP2673-100
Synonyms: Potassium methyl sulfate; Methyl potassium sulfate; Potassium monomethyl sulfate.
Company Identification:
              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call: 201-796-7100
Emergency Number: 201-796-7100
For CHEMTREC assistance, call: 800-424-9300
For International CHEMTREC assistance, call: 703-527-3887

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
562-54-9 Sulfuric acid, monomethyl ester, potassium salt > 98 209-231-3
77-78-1 Dimethyl sulfate 0.1 201-058-1

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: white crystalline powder.
Warning! Causes eye, skin, and respiratory tract irritation. Harmful if inhaled. Contains material which may cause cancer based on animal data.
Target Organs: Respiratory system, eyes, skin.


Potential Health Effects
Eye: Causes eye irritation.
Skin: Causes skin irritation. May be harmful if absorbed through the skin.
Ingestion: May cause digestive tract disturbances. May be harmful if swallowed.
Inhalation: Harmful if inhaled. Causes respiratory tract irritation.
Chronic: Potential cancer hazard.

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.
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: Use extinguishing media most appropriate for the surrounding fire.
Flash Point: Not applicable.
Autoignition Temperature: Not available.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 2; 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. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage: Store in a cool, dry, well-ventilated area away from incompatible substances. 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.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Sulfuric acid, monomethyl ester, potassium salt none listed none listed none listed
Dimethyl sulfate 0.1 ppm TWA; Skin - potential significant contribution to overall exposure by the cutaneous r oute 0.1 ppm TWA; 0.5 mg/m3 TWA 7 ppm IDLH 1 ppm TWA; 5 mg/m3 TWA

OSHA Vacated PELs: Sulfuric acid, monomethyl ester, potassium salt: No OSHA Vacated PELs are listed for this chemical. Dimethyl sulfate: 0.1 ppm TWA; 0.5 mg/m3 TWA
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: Crystalline powder
Appearance: 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:212 - 227 deg C
Decomposition Temperature:Not available.
Solubility: Soluble.
Specific Gravity/Density:Not available.
Molecular Formula:CH3KO4S
Molecular Weight:150.19

Section 10 - Stability and Reactivity


Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Dust generation.
Incompatibilities with Other Materials: Strong oxidizing agents.
Hazardous Decomposition Products: Carbon monoxide, oxides of sulfur, carbon dioxide, dipotassium oxide.
Hazardous Polymerization: Will not occur.

Section 11 - Toxicological Information


RTECS#:      
CAS# 562-54-9 unlisted.      
CAS# 77-78-1: WS8225000
LD50/LC50:
Not available.

CAS# 77-78-1:
     Draize test, rabbit, eye: 50 ug/24H Severe;
     Inhalation, mouse: LC50 = 280 mg/m3;
     Inhalation, rat: LC50 = 45 mg/m3/4H;
     Oral, mouse: LD50 = 140 mg/kg;
     Oral, rat: LD50 = 205 mg/kg;
.

Carcinogenicity:
CAS# 562-54-9: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 77-78-1:


Epidemiology: No data available.
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:
CAS# 77-78-1: waste number U103.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: TOXIC SOLIDS, ORGANIC, N.O.S. TOXIC SOLIDS, ORGANIC, N.O.S.
Hazard Class: 6.1 6.1
UN Number: UN2811 UN2811
Packing Group: III III

Section 15 - Regulatory Information

US FEDERAL
TSCA
     CAS# 562-54-9 is listed on the TSCA inventory.
     CAS# 77-78-1 is listed on the TSCA inventory.
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
     CAS# 77-78-1: 100 lb final RQ; 45.4 kg final RQ
SARA Section 302 Extremely Hazardous Substances
     CAS# 77-78-1: 500 lb TPQ
SARA Codes
     CAS # 77-78-1: immediate, delayed, fire.
Section 313
     Dimethyl sulfate is not at a high enough concentration to be reportable under Section 313.      No chemicals are reportable under Section 313.
Clean Air Act:
     CAS# 77-78-1 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.
     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# 562-54-9 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
     CAS# 77-78-1 can be found on the following state right to know lists: California, New Jersey, Pennsylvania, Minnesota, Massachusetts.

California Prop 65
WARNING: This product contains Dimethyl sulfate, 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
Risk Phrases:
     R 20/22 Harmful by inhalation and if swallowed.
     R 36/37/38 Irritating to eyes, respiratory system and skin.
     R 45 May cause cancer.

Safety Phrases:
     S 26 In case of contact with eyes, rinse immediately with plenty of
     water and seek medical advice.
     S 36/37/39 Wear suitable protective clothing, gloves and eye/face pr
     otection.
     S 45 In case of accident or if you feel unwell, seek medical advice
     immediately (show the label where possible).
     S 53 Avoid exposure - obtain special instructions before use.

WGK (Water Danger/Protection)
     CAS# 562-54-9: No information available.
     CAS# 77-78-1: 2
Canada - DSL/NDSL
     CAS# 77-78-1 is listed on Canada's DSL List.
     CAS# 562-54-9 is listed on Canada's NDSL List.
Canada - WHMIS
     This product has a WHMIS classification of D2A, D1B.
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# 77-78-1 is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 12/12/1997
Revision #6 Date: 6/29/2007

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.