SECTION 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
  SECTION 2. COMPOSITION/INFORMATION ON INGREDIENTS
  SECTION 3. HAZARDS IDENTIFICATION
  SECTION 4. FIRST AID MEASURES
  SECTION 5. FIRE FIGHTING MEASURES
  SECTION 6. ACCIDENTAL RELEASE MEASURES
  SECTION 7. HANDLING AND STORAGE
  SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
  SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES
  SECTION 10. STABILITY AND REACTIVITY
  SECTION 11. TOXICOLOGICAL INFORMATION
  SECTION 12. ECOLOGICAL INFORMATION
  SECTION 13. DISPOSAL CONSIDERATIONS
  SECTION 14. TRANSPORT INFORMATION
  SECTION 15. REGULATORY INFORMATION
  SECTION 16. OTHER INFORMATION

AZ(R*)

CLARIANT


MATERIAL SAFETY DATA SHEET


------SECTION 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION ------

MANUFACTURER/SUPPLIER NAME:
CLARIANT CORPORATION
AZ ELECTRONIC MATERIALS
P.O. BOX 3700, 70 MEISTER AVENUE
SOMERVILLE, NJ 08876-1258

TELEPHONE NUMBERS:
EMERGENCY-CHEMTREC:  (800) 424-9300
PRODUCT SAFETY INFORMATION: (908) 429-3593
CUSTOMER SERVICE:    (800) 515-4164

PRODUCT NAME:
AZ(R) 400K DEVELOPER

SYNONYMS:
NONE

MSDS NO.:  7070

REVISION DATE: 11/19/1999
DATE PRINTED:  03/31/2000


------SECTION 2. COMPOSITION/INFORMATION ON INGREDIENTS ------

CHEMICAL NAME &    WEIGHT   HAZARDOUS? NJ TRADE  INGREDIENT  OTHER
CAS NUMBER         PERCENT             SECRET #  SYNONYMS   INFORMATION:

WATER              >85          NO       NA        NONE     NJ/PA RTK LISTINGS.
007732-18-5                                                 NOT ON ANY OTHER
                                                            STATE RTK LIST.

POTASSIUM BORATES  <15          NO       NA        NONE     NJ/PA RTK LISTINGS.
020786-60-1                                                 NOT ON ANY OTHER
                                                            STATE RTK LIST.


------SECTION 3. HAZARDS IDENTIFICATION ------

EMERGENCY OVERVIEW:
CLEAR, COLORLESS LIQUID. NONCOMBUSTIBLE. WATER SOLUBLE. NO ODOR. CAUSES SEVERE
EYE IRRITATION.


POTENTIAL HEALTH EFFECTS:

EYE:
CAUSES SEVERE EYE IRRITATION

SKIN:
NO HAZARD IN NORMAL INDUSTRIAL USE.

INGESTION:
NO HAZARD IN NORMAL INDUSTRIAL USE.

INHALATION:
NO HAZARD IN NORMAL INDUSTRIAL USE.

SYSTEMIC EFFECTS:
REPEATED HIGH-LEVEL EXPOSURE CAUSES KIDNEY DAMAGE.

REPRODUCTIVE & BIRTH DEFECTS:
EXPOSURES HAVING NO ADVERSE EFFECT ON THE MOTHER SHOULD HAVE NO EFFECT ON THE
FETUS. OVEREXPOSURE OF MALES TO BORATES CAUSES DAMAGE TO THE TESTES AND REDUCED
SPERM PRODUCTION.

RELEVANT ROUTES OF EXPOSURE:
LIQUID AND MIST CONTACT WITH SKIN AND EYES. INHALATION OF MIST.

MEDICAL CONDITIONS AGGRAVATED:
PREEXISTING SKIN AND EYE CONDITIONS MAY BE AGGRAVATED.

ENVIRONMENTAL OVERVIEW:
NO OR VERY LOW ENVIRONMENTAL HAZARD.


------SECTION 4. FIRST AID MEASURES ------

FIRST AID PROCEDURES:

INHALATION:
REMOVE VICTIM TO FRESH AIR. CONSULT PHYSICIAN IF IRRITATION OCCURS.

EYE CONTACT:
FLUSH THOROUGHLY WITH WATER FOR 15 MINUTES. GET IMMEDIATE MEDICAL HELP.

SKIN CONTACT:
IMMEDIATELY REMOVE CONTAMINATED CLOTHING AND WASH AFFECTED AREA THOROUGHLY WITH
SOAP AND WATER. CONSULT PHYSICIAN IF EXPOSURE IS EXTENSIVE OR IF IRRITATION
OCCURS.

INGESTION:
IF PERSON IS CONSCIOUS, GIVE WATER OR MILK TO DILUTE STOMACH CONTENTS.
NEVER GIVE ANYTHING BY MOUTH TO AN UNCONSCIOUS PERSON. DO NOT INDUCE VOMITING.
CONSULT PHYSICIAN.


------SECTION 5. FIRE FIGHTING MEASURES ------

NONCOMBUSTIBLE. WATER-BASED MATERIAL CONTAINING NO COMBUSTIBLE COMPONENTS.
COMPATIBLE WITH EXTINGUISHING AGENTS.


------SECTION 6. ACCIDENTAL RELEASE MEASURES ------

SPILL OR LEAK PROCEDURES:
WEARING APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT, CONTAIN SPILL, COLLECT ONTO
INERT ABSORBENT, AND PLACE IN A SUITABLE CONTAINER. RINSE RESIDUAL WITH WATER.


------SECTION 7. HANDLING AND STORAGE ------

HANDLING:
AVOID CONTACT WITH SKIN, EYES, AND CLOTHING.

STORAGE:
STORE IN ORIGINAL CONTAINER. STORE AT APPROPRIATE TEMPERATURE. SEE LABEL FOR
DETAILS. KEEP FROM FREEZING.


------SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION ------

ENGINEERING CONTROLS:
WHERE MIST IS PRESENT, PROVIDE LOCAL EXHAUST VENTILATION OR A RESPIRATOR
CERTIFIED FOR MIST BY NIOSH.

PERSONAL PROTECTIVE EQUIPMENT (PPE):
CLOTHING SUITABLE TO PREVENT SKIN CONTACT. SAFETY GOGGLES OR FULL FACE SHIELD TO
PROTECT AGAINST SPLASHES. RUBBER GLOVES.

EXPOSURE GUIDELINES:

CHEMICAL NAME & CAS     WEIGHT    MANUFACTURER'S   ACGIH    OSHA  NIOSH  AIHA
NUMBER                  PERCENT     TWA TLV*       TWA TLV* PEL*  REL*   WEEL*

WATER                   >85
007732-18-5

POTASSIUM BORATES       <15
020786-60-1


*TWA TLV = TIME WEIGHTED AVERAGE THRESHOLD LIMIT VALUE
ACGIH = AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS
OSHA PEL = OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION PERMISSIBLE EXPOSURE
LIMIT
NIOSH REL = NATIONAL INSTITUTE OF OCCUPATIONAL SAFETY AND HEALTH RECOMMENDED
EXPOSURE LIMIT
AIHA WEEL = AMERICAN INDUSTRIAL HYGIENE ASSOCIATION WORKPLACE ENVIRONMENTAL
EXPOSURE LEVEL

**SKIN NOTATION
***HOECHST CELANESE WORKPLACE EXPOSURE LEVEL (HCC WEL); INCLUDED IS A "NO
CONTACT" RECOMMENDATION FOR NMP DUE TO ITS SKIN ABSORPTION PROPERTIES.


------SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES ------

APPEARANCE:
CLEAR LIQUID.

ODOR:
NO ODOR.

PHYSICAL STATE:
LIQUID WITH DISSOLVED SOLIDS.

PH: 12.9

VAPOR PRESSURE:
ABOUT THE SAME AS WATER.

BOILING POINT:
100 DEG C

SOLUBILITY IN WATER:
SOLUBLE.

SPECIFIC GRAVITY:
1.09

VOC:
0

EVAPORATION RATE (BUTYL ACETATE=1):
ABOUT THE SAME AS WATER.

VISCOSITY:
SIMILAR TO WATER.

% VOLATILE:
88%


------SECTION 10. STABILITY AND REACTIVITY ------

CHEMICAL STABILITY:
STABLE.

HAZARDOUS POLYMERIZATION:
WILL NOT OCCUR.

CONDITIONS TO AVOID:
AVOID CONTACT WITH STRONG ACIDS. THIS PRODUCT IS EXPECTED, BY TEST OR ANALOGY,
TO SLOWLY ATTACK ALUMINUM AND PERHAPS OTHER NONFERROUS METALS, RELEASING
HYDROGEN GAS.


------SECTION 11. TOXICOLOGICAL INFORMATION ------

CARCINOGEN:
IARC: NO
NTP:  NO
OSHA: NO

INGREDIENT TOXICITY DATA:

CHEMICAL NAME &     WEIGHT PERCENT   ORAL RAT LD50  SKIN RBT LD50  INH RAT LC50
CAS NUMBER

WATER                   >85
007732-18-5

POTASSIUM BORATES       <15
020786-60-1

TOXICITY HAZARD STATEMENTS FOR PRODUCT:

EYE EFFECTS:
TESTING IN RABBITS SHOWS THAT THE MATERIAL IS A SEVERE EYE IRRITANT.

SKIN EFFECTS:
TESTING IN ANIMALS SHOWS THAT THIS MATERIAL IS A NON-IRRITANT. D.O.T. FOUR HOUR
RABBIT SKIN TEST OF THIS PRODUCT WAS NEGATIVE FOR SKIN CORROSION.

ACUTE ORAL EFFECTS:
NO DATA.

SUBCHRONIC EFFECTS:
REPEATED EXPOSURE TO BORIC ACID OR ITS SALTS HAS BEEN ASSOCIATED WITH
GASTROINTESTINAL EFFECTS, KIDNEY DAMAGE, SKIN ERUPTIONS, TESTICULAR ATROPHY, AND
REDUCED SPERM PRODUCTION.

CHRONIC EFFECTS:
CHRONIC EXPOSURE MAY RESULT IN ACCUMULATION OF BORATES IN THE BODY,
GASTROINTESTINAL DISTURBANCES, KIDNEY DAMAGE, SKIN ERUPTIONS, TESTICULAR ATROPHY
AND ASPERMIA.

MUTAGENICITY/GENOTOXICITY:
TESTING OF COMPONENTS SUGGEST NO GENOTOXIC HAZARD.


------SECTION 12. ECOLOGICAL INFORMATION ------

INGREDIENT ECOLOGICAL TOXICITY DATA:

CHEMICAL NAME &     WEIGHT PERCENT     FISH LC50     DAPHNIA EC50    ALGAE IC50
CAS NUMBER

WATER                   >85
007732-18-5

POTASSIUM BORATES       <15
020786-60-1


ENVIRONMENTAL HAZARD INFORMATION STATEMENTS (USING EU CLASSIFICATION CRITERIA):

TOXICITY TO FISH:
BASED ON DATA FROM COMPONENTS, THIS MATERIAL IS CLASSIFIED AS:
NOT HARMFUL (LC50>100 MG/L).

TOXICITY TO DAPHNIDS:
BASED ON DATA FROM COMPONENTS, THIS MATERIAL IS CLASSIFIED AS:
NOT HARMFUL (EC50 GREATER THAN 100 MG/L).

ENVIRONMENTAL FATE:
BASED ON DATA FROM COMPONENTS, THIS MATERIAL IS CONSIDERED RESISTANT TO
BIODEGRADATION.


------SECTION 13. DISPOSAL CONSIDERATIONS ------

DISPOSAL:
CONSULT LOCAL, STATE, AND FEDERAL REGULATIONS. THIS PRODUCT WOULD BE CONSIDERED
A HAZARDOUS WASTE UNDER RCRA DUE TO THE HIGH PH UNLESS NEUTRALIZED PRIOR TO
DISPOSAL.


------SECTION 14. TRANSPORT INFORMATION ------

DOT/IATA SHIPPER ENTRY:
CAUSTIC ALKALI LIQUID, N.O.S. (POTASSIUM BORATES), 8, UN1719, III.

OTHER INFORMATION:
CLASSIFICATION DUE TO CORROSIVITY OF ALUMINUM.


------SECTION 15. REGULATORY INFORMATION ------

TSCA INVENTORY STATUS;
ALL COMPONENTS OF THIS PRODUCT ARE LISTED ON THE TSCA INVENTORY.

SARA TITLE III SECTION 313:
THIS PRODUCT IS NOT SUBJECT TO SARA TITLE III SECTION 313 REPORTING REQUIREMENTS
UNDER 40CFR372.

OSHA PHYSICAL HAZARDS:
NONE

OSHA HEALTH HAZARDS:
IRRITANT. EYE HAZARD. SKIN HAZARD.

SARA (311, 312) HAZARD CLASS(ES):
ACUTE HEALTH HAZARD.


------SECTION 16. OTHER INFORMATION ------

HMIS RATINGS:
HEALTH =       2
FLAMMABILITY = 0
REACTIVITY =   0
PPE =          G

NFPA RATINGS:
HEALTH =       2
FLAMMABILITY = 0
REACTIVITY =   0
SPECIAL
HAZARD =       NONE.


(R) AND (TM) INDICATE TRADEMARKS OF CLARIANT AG, ITS BUSINESS PARTNERS OR
SUPPLIERS. THE INFORMATION HEREIN IS PROVIDED IN GOOD FAITH, BUT NO WARRANTY,
EXPRESS OR IMPLIED, IS MADE WITH RESPECT TO SUCH INFORMATION.