| specifications︰ | Name DS – 100 ( Developer Solution )
Description of substance Single, Mixture: Mixture.
Chemical name: Potassium Carbonate 584-08-7 50 %
Additive below 10 %
Clarification of Hazardous toxicity Clarification
Name of clarification: Not applicable.
Toxicity: If inhaled, it stimulates the nose, throat and you may experience painful symptoms. Blindness can result due to wrong aid to eyes. Exposure to skin for long period of time or multiple times may cause cancer.
If inhaled: Move to a place with a fresh air supply.
If swallowed: Drink water and induce vomiting, then see a doctor.
In case of fire Fire extinguishing methods:
This is a non – flammable solution. In the event of fire in the surrounding area, transfer the agent to safe location if movable. If moving is not possible, spray water onto the container.
If leakage occurs, wear protective air mask.
Precautions in
Handling / storage Handling;
Wear suitable protective equipment and be cautious at all times.
Storage;
Avoid high temperature and placing with other materials that have high temperature.
Attach a warning Label on container.
In case of large amount of storage, establish preventive measures to avoid leakage. Close the container when it is not being used.
Avoid close proximity to sulfuric acid at high temperatures from 10 ~ 30 ℃.
Exposure Prevention Measures
Control concentration: No standard.
< Recommendations of Japan industrial sanitary association > 1993
1) Choking dust 2 mg/㎡ K2CO3
2) Light dust 2 mg/㎡ K2CO3
3) No standard additive
ACGIH
1) Light dust 2 mg/㎡ K2CO3
2) No standard additive
Countermeasure of equipment: Establish safe shower and washing equipment. Ventilator should be established.
Preventive equipment:
Protective breathing equipment: Wear safety goggle, side silt glasses.
Preventive gloves: Wear vinyl gloves.
Preventive clothing: Wear protective clothing such as long sleeves and long pants.
Physical/Chemical Properties Appearance: Transparent liquid with light smell.
Specific gravity : 1.350 ~ 1.450 / 25 ℃
PH: More than 14
Solubility: It is liquid type so, it mixed up with at random rate.
Hazard Information
Flammable point: None Flammability: None
Explosive point: None Explosion: None
Explosion limit: None
The ignition point: None
Cancer causing agent: Not applicable
- Japan Industrial Sanitary Association (1994) , OHSA(1993 ) , NTP ( 1994), IARC( 1993)
Environmental
Information. K2CO3 Additive.
Decomposition: No data
Accumulation: No data
Poisoning: No data.
Precautions
In discarding Neutralize and discard.
Abide by the laws such as < Disposal treatment >, < Preventive law of water disposal. >.
Caution
for transportation. Store in corrosion resistant containers.
Be cautious not to leak from the container.
Prepare the sand and neutralizer all the times.
Reference
Literatures
1) Van Waters and Rogers Ltd. < Potassium Carbonate > MSDS
Canadian Center For Occupational Health and Safety (1990)
2) National Institute of Occupational Safety and Health, Registry of Toxic Effects of Chemical
Substances < Potassium Carbonate>
Canadian Centre for Occupational Health and Safety (1991)
3) MSDS < K2CO3> (1995)
4) Japan Chemicals. < Chemical Clarification Re 2. > (1975)
This MSDS has been prepared on the basis of generally obtainable literature and data held at the company.
In particular, toxicity Data illustrates information on toxicity of harmful chemical substance when present in itself. As such these data may be in disparity with the toxicity of this product.
This MSDS conveys basic information for handling of the product and should not be considered as safety assurance.
As such, this MSDS does not stipulate responsibility nor assurance for any accidents that may arise in handling and storage of the product, as illustrated above.
Since the data provided by this MSDS is not complete, please take sufficient precautions in handling and storage of the product. |
| Advantages︰ | As a result, using developer solution DS – 100 is simple by maintaining meltage of dry film and pH.
Meltage of dry film is maintained by the panel counter system.
However, since pH decrease by spraying of the agent , check pH once every day .
In order to minimize decreasing of pH, control two things.
First is to control the ratio of spraying when there is no working.
Second is to do not to open the ventilator needlessly.
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| Min Order︰ | 20 litre |
| Ship Date︰ | 2 weeks |
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This is useful alkali type solution for photo resist and dry film.
1) Features
a) Non- slugging.
b) Resist resolves easily.
c) Simple to clean the developing chamber.
d) Easy Make - up because of liquidity.
2) Application
a) Make – up: 1. 6 % v/v DS - 100 Control extent: 0.8 ~ 3 % v/L
b) Make – up: 1. 6 % v/L DS – 100 (1.5 ~ 2.0 %)
c) Temperature : 25 ~ 35 ℃ ( 29 ℃ )
d) Break point: 60 ~ 65 %
e) Spray pressure:1.0 ~ 2.0 kgf/㎠
f) Control / Replenishment: Panel counter method.
Check pH above 10.6 once every day. Drain the developer solution in the chamber after using
for one or two weeks , then do the make- up again.
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