1.a)     PRODUCT           H-316 1.b)     SUPPLIER         Company:  Wuxi HuiLong Electronic Materials Co.,Ltd. Address:  MeiYuan DaJiShan 519-7,Wuxi, Jiangsu, China  E-mail : jys88@163.com

2.  COMPOSITION AND INFORMATION ON INGREDIENTS

            Name                           Conc. %                 CAS #

          Methy1-tetrahydrophalic anhydride     >99              26590-20-5

3.  HAZARDS IDENTIFICATION

Acute toxication:  inhale plenty of high dencity product leads to nausea, soar throat, cough, stuffy chest and difficult breath. No sequelae. This product can also cause skin congestion and dropsy.

Environment damage:  damage the environment.

Burning and explosion hazard:  no explosion and burning reaction with kinds of tests.

Danger classes:  Ⅱ hazardous chemicals

4. FIRST AID MEASURES

        Inhalation:  remove the victim from the contamination immediately to fresh air.

Skin contact:  take off the cloth and flush the skin with soap at least 15 mins, see the doctor.

Eye contact:  lift eyelid and flush with plenty of water or physiological saline immediately at least 15 mins. See the doctor.

Ingestion:  drink enough warm water to induce vomit. See the doctor.

5.      FIRE AND EXPLOSION DATA

Fire Fighting Media and instructions: dry chemical powder, carbon dioxide or dry sand, water and foam.   

            Process:  cut the power. Move the container from fire to spacious place. Do not stop spray water until finishing extinguishing to keep the container cool.

            Explosion hazards in presence of various substances:  none  

6.  ACCIDENTAL RELEASE MEASURES

Elimilate ignition sources. Evacuate from contaminated area to safe place. Take isolation, restrict coming in and going out. People who make treatment should wear respirator and fire protective clothes. Try to cut leaking sources avoid flow to sewer.

Small leakage: try to scoop leaked material into airtight container and absorb with active carbon or other inert material, or flush with plenty of water and drain the diluted material to waste water system.

Large leakage: dike or dig, use receiver to collect leaked material and move to waste treatment station.

7.  HANDLING AND STORAGE

                      Handling:  operate in doors with ventilation, operator should receive special training and operate strictly abide by rules. Far away from ignition sources. No smoking. Use ventilation equipment. Handle with care. To avoid damaging fire-fighting equipment and emergency treatment devices.

Storage:  store in cool warehouse with ventilation. Far away from ignition

sources. Avoid sunlight and rain. Keep container closed. Store seprately from

oxidant, alkali and eatable chemical materials.

8.  EXPOSURE CONTROLS - PERSONAL PROTECTION

Engineering Controls:  ventilate during production

Respiratory protection:       wear filter respirator and mask.

Eye protection:  no particular protection, wear safety goggles when density is high

Body protection:  no particular protection, wear safety clothes when density is high.

Hand protection:  wear oil-risistant rubber gloves.

Other protection:  no smoking, diet and drinking at workplace. Take shower and change cloth after working.

9.  PHYSICAL AND CHEMICAL PROPERTIES

Physical state and appearance             liquid

Colour                            yellowish transparent liquid

Odour                             characteristic odor

Boiling point                      295℃

Falsh point                        125℃

Self-ignite                        not available

Density                           1.20g/ml (20℃)

Solubility                       soluble in water, alcohol, aether, acet and alkali

10. STABILITY AND REACTIVITY DATA

Chemical stability ：stable and become acid after contacting water

Forbid to use with: water and alkali

Condition to avoid: flame, water and alkali

Polymerization: no polymerization

Decomposition products: CO and CO2

11. TOXICOLOGICAL INFORMATION

Special remarks on chronic effects on humans:  may cause skin disease .

Special remarks on acute effects on humans:  LD50: 5050mg/kg

12. ECOLOGICAL INFORMATION

            Ecotoxicity:      No relevant information found.

            BOD5 and COD:     No relevant information found.

            Products of biodegradation:     No relevant information found.

            Toxicity of the Products:     No relevant information found.

13. DISPOSAL CONSIDERATION

     Do not dump into sewers, on the ground or into any body of water.

     Consult an expert on the disposal. Ensure disposal in compliance with government

requirements and ensure conformity to local disposal regulations.

14. TRANSPORT INFORMATION

        Follow all regulations in your country. Not belong to dangerous goods.

     Transport and store according to general caution and instructions in before

mentioned comment. Packed with iron cans otr plastic cans. Keep the material away

from water.

15. REGULATORY INFORMATION

Chemical hazardous material safety management rules( made on Feb 17, 1987) has set rules and regulations on safe production, usages, load and unloade.

16. OTHER INFORMATIONI

      To the best of our knowledge, the information contained here in is accurate.

However, all materials may present unknown hazards and should be used in

caution. Although certain hazards are described herein, we cannot guarantee that

these are the only hazards, which exist. Final determination of suitability of any

material is the sole responsibility of the user.