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MICA


Product Trade Name:            MICA
1.        IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY/UNDERTAKING

Identification of Substances or Preparation

Product Trade Name:                     MICA Synonyms:                                       None Chemical Family:                            Mineral
Application:                                     Fluid Loss Additive







Product Trade Name:            MICA
1.        IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY/UNDERTAKING

Identification of Substances or Preparation

Product Trade Name:                     MICA Synonyms:                                       None Chemical Family:                            Mineral
Application:                                     Fluid Loss Additive


Company Undertaking
Identification
Halliburton Energy Services Deveron Facility, Howemoss Place Kirkhill Industrial Estate
Dyce
Aberdeen, AB21 0GS United Kingdom

Emergency Phone Number: +44 1224 795277 or +1 281 575 5000

Prepared By                                     Chemical Compliance
Telephone:  1-580-251-4335

2.   COMPOSITION/INFORMATION ON INGREDIENTS

SUBSTANCE                               CAS Number
PERCENT    EINECS           UK WEL      Germany
MAK/TRK
Netherlands EEC Classification
MAC
Crystalline silica, quartz                14808-60-7   1 - 5%           238-878-4     0.1 mg/m3            0,15 mg/m3         0,075 mg/m3      Not applicable
Mica                                              12001-26-2   60 - 100%                          10 mg/m3              Not applicable 5 mg/m3                 Not applicable

More restrictive exposure limits may be enforced by some states, agencies, or other authorities.

3.   HAZARDS IDENTIFICATION
Hazard Overview                             CAUTION!   - ACUTE HEALTH HAZARD
May cause eye and respiratory irritation.

DANGER!   - CHRONIC HEALTH HAZARD
Breathing crystalline silica can cause lung disease, including silicosis and lung cancer.  Crystalline silica has also been associated with scleroderma and kidney disease.

This product contains quartz, cristobalite, and/or tridymite which may become airborne without a visible cloud.  Avoid breathing dust.  Avoid creating dusty conditions.  Use only with adequate ventilation to keep exposures below recommended exposure limits.  Wear a NIOSH certified, European Standard EN
149, or equivalent respirator when using this product.  Review the Material Safety
Data Sheet (MSDS) for this product, which has been provided to your employer.

4.   FIRST AID MEASURES

Inhalation    If inhaled, remove from area to fresh air.  Get medical attention if respiratory irritation develops or if breathing becomes difficult.

Skin                                                  Wash with soap and water. Get medical attention if irritation persists.

Eyes                                                  In case of contact, immediately flush eyes with plenty of water for at least 15 minutes and get medical attention if irritation persists.

Ingestion                                          Under normal conditions, first aid procedures are not required.

Notes to Physician                          Treat symptomatically.

5.   FIRE FIGHTING MEASURES

Suitable Extinguishing Media        All standard fire fighting media

Unsuitable Extinguishing Media   None known.

Special Exposure Hazards             Not applicable.

Special Protective Equipment for
Fire-Fighters
Not applicable.

6.   ACCIDENTAL RELEASE MEASURES

Personal Precautionary Measures Use appropriate protective equipment. Avoid creating and breathing dust.

Environmental Precautionary
Measures
None known.

Procedure for Cleaning / Absorption
Collect using dustless method and hold for appropriate disposal. Consider possible toxic or fire hazards associated with contaminating substances and use appropriate methods for collection, storage and disposal.

7.   HANDLING AND STORAGE

Handling Precautions                     This product contains quartz, cristobalite, and/or tridymite which may become airborne without a visible cloud.  Avoid breathing dust.  Avoid creating dusty conditions.  Use only with adequate ventilation to keep exposure below
recommended exposure limits.  Wear a NIOSH certified, European Standard En 149, or equivalent respirator when using this product.  Material is slippery when wet.
Storage Information                        Use good housekeeping in storage and work areas to prevent accumulation of dust.
Close container when not in use. Do not reuse empty container.

8.   EXPOSURE CONTROLS/PERSONAL PROTECTION

Engineering Controls                     Use approved industrial ventilation and local exhaust as required to maintain exposures below applicable exposure limits listed in Section 2.

Respiratory Protection                   Wear a NIOSH certified, European Standard EN 149, or equivalent respirator when using this product.


Hand Protection                              Normal work gloves.

Skin Protection                               Wear clothing appropriate for the work environment.  Dusty clothing should be laundered before reuse. Use precautionary measures to avoid creating dust when removing or laundering clothing.

Eye Protection                                 Wear safety glasses or goggles to protect against exposure.

Other Precautions                           None known.

9.   PHYSICAL AND CHEMICAL PROPERTIES

Physical State:                                                                       Solid Color:                                                                                      Silver Odor:                                                                                       Odorless
pH:                                                                                           Not Determined
Specific Gravity @ 20 C (Water=1):                                      2.9
Density @ 20 C (kg/l):                                                            Not Determined Bulk Density @ 20 C (kg/m3):                                                Not Determined Boiling Point/Range (C):                                                       Not Determined Freezing Point/Range (C):                                                     Not Determined Pour Point/Range (C):                                                           Not Determined Flash Point/Range (C):                                                          Not Determined Flash Point Method:                                                              Not Determined Autoignition Temperature (C):                                              Not Determined Flammability Limits in Air - Lower (g/m3):                           Not Determined Flammability Limits in Air - Lower (%):                               Not Determined Flammability Limits in Air - Upper (g/m3):                           Not Determined Flammability Limits in Air - Upper (%):                                Not Determined Vapor Pressure @ 20 C (mmHg):                                         Not Determined Vapor Density (Air=1):                                                           Not Determined Percent Volatiles:                                                                   Not Determined Evaporation Rate (Butyl Acetate=1):                                   Not Determined Solubility in Water (g/100ml):                                               Insoluble Solubility in Solvents (g/100ml):                                           Not Determined VOCs (g/l):                                                                              Not Determined Viscosity, Dynamic @ 20 C (centipoise):                            Not Determined Viscosity, Kinematic @ 20 C (centistrokes):                       Not Determined Partition Coefficient/n-Octanol/Water:                                Not Determined Molecular Weight (g/mole):                                                   Not Determined Decomposition Temperature (C):                                         Not Determined

10.   STABILITY AND REACTIVITY

Stability Data:                                  Stable

Hazardous Polymerization:            Will Not Occur
Conditions to Avoid                        None anticipated

Incompatibility (Materials to
Avoid)
Hydrofluoric acid.

Hazardous Decomposition
Products
Amorphous silica may transform at elevated temperatures to tridymite (870 C) or cristobalite (1470 C).

Additional Guidelines                     Not Applicable

11.   TOXICOLOGICAL INFORMATION

Principle Route of Exposure          Eye or skin contact, inhalation.

Inhalation    Prolonged breathing of mica dust may produce pneumoconiosis. Inhaled crystalline silica in the form of quartz or cristobalite from occupational sources is carcinogenic to humans (IARC, Group 1). There is sufficient evidence in experimental animals for
the carcinogenicity of tridymite (IARC, Group 2A).

Breathing silica dust may cause irritation of the nose, throat, and respiratory passages.  Breathing silica dust may not cause noticeable injury or illness even though permanent lung damage may be occurring.  Inhalation of dust may also have serious chronic health effects (See "Chronic Effects/Carcinogenicity" subsection below).


Skin Contact                                    May cause mechanical skin irritation.

Eye Contact                                     May cause eye irritation.

Ingestion                                          None known

Aggravated Medical Conditions    Individuals with respiratory disease, including but not limited to asthma and bronchitis, or subject to eye irritation, should not be exposed to quartz dust.

Chronic Effects/Carcinogenicity   Silicosis:  Excessive inhalation of respirable crystalline silica dust may cause a progressive, disabling, and sometimes-fatal lung disease called silicosis. Symptoms include cough, shortness of breath, wheezing, non-specific chest illness, and reduced pulmonary function.  This disease is exacerbated by smoking. Individuals with silicosis are predisposed to develop tuberculosis.

Cancer Status: The International Agency for Research on Cancer (IARC) has determined that crystalline silica inhaled in the form of quartz or cristobalite from occupational sources can cause lung cancer in humans (Group 1 - carcinogenic to humans) and has determined that there is sufficient evidence in experimental animals for the carcinogenicity of tridymite (Group 2A - possible carcinogen to humans).  Refer to IARC Monograph 68, Silica, Some Silicates and Organic Fibres  (June 1997) in conjunction with the use of these minerals. The National Toxicology
Program classifies respirable crystalline silica as "Known to be a human carcinogen". Refer to the 9th Report on Carcinogens (2000).  The American Conference of Governmental Industrial Hygienists (ACGIH) classifies crystalline silica, quartz, as a suspected human carcinogen (A2).

There is some evidence that breathing respirable crystalline silica or the disease silicosis is associated with an increased incidence of significant disease endpoints such as scleroderma (an immune system disorder manifested by scarring of the lungs, skin, and other internal organs) and kidney disease.
Other Information                           For further information consult "Adverse Effects of Crystalline Silica Exposure" published by the American Thoracic Society Medical Section of the American Lung Association, American Journal of Respiratory and Critical Care Medicine, Volume
155, pages 761-768 (1997).

Toxicity Tests

Oral Toxicity:                         Not determined Dermal Toxicity:                    Not determined Inhalation Toxicity:               Not determined Primary Irritation Effect:       Not determined
Carcinogenicity                     Refer to IARC Monograph 68, Silica, Some Silicates and Organic Fibres  (June
1997).

Genotoxicity:                         Not determined

Reproductive / Developmental Toxicity:
Not determined

12.   ECOLOGICAL INFORMATION

Mobility (Water/Soil/Air)                 Not determined

Persistence/Degradability              Not applicable


Bio-accumulation                            Not Determined

Ecotoxicological Information

Acute Fish Toxicity:              Not determined Acute Crustaceans Toxicity:Not determined Acute Algae Toxicity:           Not determined

Chemical Fate Information             Not determined

Other Information                           Not applicable

13.   DISPOSAL CONSIDERATIONS

Disposal Method                             Bury in a licensed landfill according to federal, state, and local regulations.

Contaminated Packaging               Follow all applicable national or local regulations.

14.   TRANSPORT INFORMATION

Land Transportation

ADR Not restricted

Air Transportation

ICAO/IATA Not restricted

Sea Transportation

IMDG
Not restricted

Other Shipping Information

Labels:                                             None

15.   REGULATORY INFORMATION

EC Supply labeling Requirements This product is not subject to the labeling requirements of EC Directives 67/548/EEC
and 88/379/EEC as amended.

Classification                                  Crystalline silica is not classified as a carcinogen in EU Council Directives
67/548/EEC and 88/379/EEC.


Risk Phrases                                   None


Safety Phrases                                None


EINECS Inventory                           This product, and all its components, complies with EINECS

Germany, Water Endangering
Classes (WGK)
WGK 0:  Generally not water endangering.

16.   OTHER INFORMATION


The following sections have been revised since the last issue of this MSDS
Not applicable

Additional Information                   For additional information on the use of this product, contact your local Halliburton representative.

For questions about the Material Safety Data Sheet for this or other Halliburton products, contact Chemical Compliance at 1-580-251-4335.



Disclaimer Statement                     This information is furnished without warranty, expressed or implied, as to accuracy or completeness. The information is obtained from various sources including the manufacturer and other third party sources.  The information may not be valid under all conditions nor if this material is used in combination with other materials or in any process.  Final determination of suitability of any material is the sole responsibility of the user.

***END OF MSDS***