ChemicalBook >>2,5-Dihydroxybenzaldehyde>>2,5-Dihydroxybenzaldehyde(1194-98-5)

2,5-Dihydroxybenzaldehyde(1194-98-5)

2,5-Dihydroxybenzaldehyde(1194-98-5)
Product IdentificationBack to Contents
【Product Name】

2,5-Dihydroxybenzaldehyde
【Synonyms】

2,5-Dihydroxybenzaldehyde
Gentisate aldehyde
【CAS】

1194-98-5
【Formula】

C7H6O3
【Molecular Weight】

138.12
【EINECS】

214-789-6
【Beilstein/Gmelin】

1363961
【Beilstein Reference】

4-08-00-01759
Physical and Chemical PropertiesBack to Contents
【Appearance】

Clear, colorless liquid.
【Melting Point】

99
【Boiling Point】

60.0 - 65.0 (12 torr)
【Density】

0.859 g/cm3
【Partition Coefficient】

.54
【Vapor Density】

4.9
First Aid MeasuresBack to Contents
【Ingestion】

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
【Handling】

Wash thoroughly after handling. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Hazards IdentificationBack to Contents
【Ingestion】

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
【Inhalation】

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Vapors may cause dizziness or suffocation.
【Skin】

Causes skin irritation. The toxicological properties of this material have not been fully investigated.
【Eyes】

Causes eye irritation.
【Hazards】

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
【EC Risk Phrase】

R 36/37/38
【EC Safety Phrase】

S 26 36
【UN (DOT)】

2734
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting MeasuresBack to Contents
【Flash Point】

33
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Use agent most appropriate to extinguish fire. Do NOT use straight streams of water. In case of fire use water spray, dry chemical, carbon dioxide or alcohol resistant foam.
【Fire Potential】

Flammable/combustible material. May be ignited by heat, sparks or flames.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Stability and ReactivityBack to Contents
【Incompatibilities】

Oxidizing agents.
【Stability】

Stable at room temperature in closed containers under normal storage and handling conditions.
【Decomposition】

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.
【Combustion Products】

Fire will produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

2734
【Hazard Class】

8
【Packing Group】

I; II
Company Name: Xi'an Pure&True New Materials Co., Ltd.
Tel: 18991218082; 13572462239
Fax: 029-81494338
WebSite: http://www.xianpt.com
Company Name: Hunan chemfish Scientific co.,ltd
Tel: 0731-85567275 19313119731
Fax:
WebSite: www.chemfish.com
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: 0371-66670886
Fax: QQ:1690700875
WebSite: www.dakenchem.com/
Company Name: Sholon Chem-Tech Co.,Ltd
Tel: +86-19901505185 +86-15312550623
Fax:
WebSite: https://www.trusyn.com.cn
Company Name: Changzhou Xuanming Pharmaceutical Technology Co., Ltd.
Tel: 0519-85525329 15995069468
Fax: 0519-85190960
WebSite: www.xuanmingchem.com
Company Name: Xi 'an billiton biological technology co., LTD
Tel: 029-88764766; 18191268030
Fax: 029 88764766
WebSite: http://www.xatuochao.cn
Company Name: J & K SCIENTIFIC LTD.
Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
WebSite: http://www.jkchemical.com
Company Name: Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel: 4006608290; 18621169109
Fax: 86-21-61259102
WebSite: https://www.meryer.com/cn/index/