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

Composition：Solid 90%～95%，Liquid45～50%。CAS：1310-58-3

Molecular Weight：56.11 molecular formula：KOH

Chemical classification：inorganic base

UN No: Solid 1813

Liquid 1814

EINECS： 215-181-3

**** SECTION 3 - HAZARDS IDENTIFICATION **** EMERGENCY OVERVIEW

Not available.

Potential Health Effects

Eye:

Causes severe eye burns. May cause irreversible eye injury. Ontact may cause ulceration of the conjunctiva and cornea. Eye damage may be delayed.

Skin:

Causes skin burns. May cause deep, penetrating ulcers of the skin. Ingestion:

Harmful if swallowed. May cause circulatory system failure. May cause perforation of the digestive tract. Causes severe digestive tract burns with abdominal pain, vomiting, and possible death.

Inhalation:

Harmful if inhaled. Irritation may lead to chemical pneumonitis and pulmonary edema. Causes severe

i

irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma. Chronic:

Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated eye contact may cause conjunctivitis.

**** 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. Discard contaminated clothing in a manner which limits further exposure.

Ingestion:

Do not induce vomiting. If victim is conscious and alert, give 2-4cupfuls of milk or water. Never give anything by mouth to anunconscious person. Get medical aid immediately.

Inhalation:

Get medical aid immediately. Remove from exposure and move to freshair immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.

Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:

Wear appropriate protective clothing to prevent contact with skinand eyes. Wear a

self-contained breathing apparatus (SCBA) toprevent contact with thermal decomposition products. Use water withcaution and in flooding amounts. Contact with moisture or water may generate

sufficient heat to ignite nearby combustible materials.

Extinguishing Media:

For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.

**** 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. Avoid generating

dusty conditions.

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

Handling:

Wash thoroughly after handling. Use with adequate ventilation. Do not allow water to get into the container because of violent reaction. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale.

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 flammable liquids. 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. Personal Protective Equipment

Eyes:

Wear safety glasses and chemical goggles or face shield if handling liquids. 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. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State: Solid or Liquid

The color of the solid White

The color of theliquid Colorless

Odor: Odorless

pH: 13.5 (0.1M solution)

Vapor Pressure: Not available.

Viscosity: Not available.

Boiling Point: 2408 deg F

Freezing/Melting Point: 680 deg F

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 in water

Specific Gravity/Density: 2.044 or 1.45-1.50

Molecular Formula: KOH

Molecular Weight: 56.1047

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

Chemical Stability:

Stable. Readily absorbs carbon dioxide and moisture from the air and deliquesces (to absorb atmospheric water vapor and become liquid).

Conditions to Avoid:

Incompatible materials, moisture, contact with water, acids, metals.

Incompatibilities with Other Materials:

Generates large amounts of heat when in contact with water and may steamand splatter. Reacts with chlorine dioxide, nitrobenzene, nitromethane, nitrogen trichloride, peroxidized tetrahydrofuran, 2,4,6-trinitrotoluene, bromo form crown ethers, acids alcohols, sugars, germanium cyclopentadiene,

maleic dicarbide. Corrosive to metals such as aluminum, tin, and zinc to cause formation of flammable

hydrogen gas.

Hazardous Decomposition Products:

Oxides of potassium.

Hazardous Polymerization: Has not been reported.

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

RTECS#:

CAS# 1310 58-3: TT2100000 LD50/LC50:

CAS# 1310-58-3: Draize test, rabbit, skin: 50 mg/24H Severe; Oral,

rat: LD50 = 273 mg/kg. Carcinogenicity:

Potassium hydroxide (KOH) -

Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. Other:

See actual entry in RTECS for complete information.

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

Because the alkalescence.It will pollute water. So please pay attention to protect the foliage and