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Pentanoyl chloride

Pentanoyl chloride structure

CAS No:
638-29-9
Formula:
C5H9ClO
Chemical Name:
Pentanoyl chloride
Synonyms:
Pentanoyl chloride;Valeryl chloride;Valeroyl chloride;n-Pentanoyl chloride;Pentanoic acid chloride;n-Butanecarbonyl chloride;n-Valeryl chloride
Categories:
Chemical Reagents > Organic Reagents

Description

clear colorless to light yellow liquid

Valeryl chloride appears as a colorless fuming liquid with a pungent odor. Fumes irritate the eyes and mucous membranes. Corrosive.

Pentanoyl chloride Basic Attributes

Molecular Weight：

120.58

Exact Mass：

120.58

BRN：

506293

EC Number：

211-330-1

UNII：

KJ3B4CY5GG

UN Number：

2502

DSSTox ID：

DTXSID2034091

HScode：

29159080

Characteristics

PSA：

17.1

XLogP3：

2.05

Appearance：

Clear colorless to light yellow Liquid

Density：

1.0±0.1 g/cm3

Melting Point：

-110 °C

Boiling Point：

109 °C

Flash Point：

91 °F

Refractive Index：

1.417

Water Solubility：

Decomposes in water

Storage Conditions：

Flammables area

Flammability characteristics：

Flammable; emit toxic hydrogen chloride gas in water

Air and Water Reactions：

Highly flammable. Fumes in air. Reacts exothermically with water to generate hydrochloric and valeric acids, which are corrosive.

Reactive Group：

Acyl Halides, Sulfonyl Halides, and Chloroformates

Reactivity Alerts：

Highly Flammable

Reactivity Profile：

VALERYL CHLORIDE is acidic. Incompatible with water, with bases, including amines, and with strong oxidizing agents and alcohols. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 2502 8/PG 2

wgk germany：

hazard class code：

10-20-35-34

safety instructions：

26-36/37/39-45

RTECS Number：

YV9107500

Marks：

Storage features：

The warehouse is ventilated, low temperature and dry; stored separately from alkali, oxidant and alcohol

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P261-P280-P305 + P351 + P338-P310

Hazard Statements：

H226-H314-H331

Fire Hazards：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Flammable/combustible material. May be ignited by heat, sparks or flames. 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. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. (ERG, 2016)|Corrosives, Flammable - 3rd degree, Reactive - 1st degree

GHS Classification：

|Danger|H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]|P210, P233, P234, P240, P241, P242, P243, P260, P261, P264, P271, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P321, P363, P370+P378, P390, P403+P233, P403+P235, P404, P405, and P501|Aggregated GHS information provided by 141 companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Fire Fighting：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Some of these materials may react violently with water. SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam. LARGE FIRE: Water spray, fog or alcohol-resistant foam. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal; do not scatter the material. Do not get water inside containers. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2016)

Isolation and Evacuation：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Nonfire Spill Response：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb with earth, sand or other non-combustible material and transfer to containers (except for Hydrazine). Use clean, non-sparking tools to collect absorbed material. LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2016)

Personal Protective Equipment：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. (ERG, 2016)

Drug Information

Health Hazards：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. (ERG, 2016)

First Aid：

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2016)

Pentanoyl chloride Use and Manufacturing

Uses

This product is used as an intermediate for the synthesis of liquid crystals, and for the synthesis of other fine products, etc.

Manufacturing Info：

Pentanoyl chloride: ACTIVE

Use Classification：

Fire Hazards -> Corrosives, Flammable - 3rd degree, Reactive - 1st degree

Computed Properties

Molecular Weight:120.58
XLogP3:2.4
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:3
Exact Mass:120.0341926
Monoisotopic Mass:120.0341926
Topological Polar Surface Area:17.1
Heavy Atom Count:7
Complexity:61.1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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CAS No.: 638-29-9

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Valeryl chloride

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CAS No.: 638-29-9

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CAS No.: 638-29-9

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