Note: Ingredients listed on restricted chemical lists
EC/CAS
7664-39-3
Name of the chemical
Hydrofluoric acid, its normal salts, its complexes and hydrofluorides with the exception of those given in Annex III
Concentration
20-58 30-40 1-10
EC/CAS
1336-21-6
Name of the chemical
ammonium hydroxide
Concentration
1-10
General Information
Revision date
2019-02-22
Product name
ST-250
1.2.1 Relevant identified uses
semiconductor manufacture
Emergency telephone
U.S. - 1-800-424-9300
Icons in SDS
Company Information
company name
Entegris, Inc
e-mail address of the competent person responsible for the Safety Data Sheet
Product.stewardship@entegris.com
GHS Information
Signal word
Danger
Section 2
OSHA HCS Classification
Acute Toxicity - Oral - Category 4 Acute Toxicity - Dermal - Category 4 Skin Corrosion/Irritation - Category 2 Serious Eye Damage/Eye Irritation - Category 2A Skin Sensitization - Category 1 Specific target organ toxicity - Single exposure - Category 2 ( respiratory system , lungs ) Specific Target Organ Toxicity - Repeated Exposure - Category 1 ( kidneys , liver ) Specific Target Organ Toxicity - Repeated Exposure - Category 2 ( respiratory system , skeletal system , teeth ) Hazardous to the Aquatic Environment - Acute - Category 3 Hazardous to the Aquatic Environment - Chronic - Category 3
Signal word
Danger
Hazard statements
Harmful in contact with skin. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause an allergic skin reaction. May cause damage to organs. (respiratory system , lungs ) Causes damage to organs through prolonged or repeated exposure. (kidneys , liver ) May cause damage to organs through prolonged or repeated exposure. (respiratory system , skeletal system , teeth ) Harmful to aquatic life with long lasting effects.
Prevention
Do not breathe vapor or mist. Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Contaminated work clothing must not be allowed out of the workplace. Avoid release to the environment.
Response
If exposed or concerned: Call a POISON CENTER or doctor/physician. IF ON SKIN: Wash with plenty of soap and water. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment may be needed, see first aid section of Safety Data Sheet. If skin irritation or rash occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth.
Storage
Store locked up.
Disposal
Dispose of contents/container in accordance with local/regional/national/international regulations. Statement(s) of Unknown Acute Toxicity Dermal 11% of the mixture consists of ingredient(s) of unknown acute toxicity. Oral 3.9% of the mixture consists of ingredient(s) of unknown acute toxicity. Statement(s) of Unknown Aquatic Toxicity 59% of the mixture consists of ingredient(s) of unknown acute aquatic toxicity. 59% of the mixture consists of ingredient(s) of unknown chronic aquatic toxicity.
2.3 Other hazards
None known.
