Butylchlorformiat

Toxic Gases & Vapors -> Acid Halides

Corrosives

1.0513 at 68 °F (USCG, 1999) - Denser than water; will sink

1.06 g/cm³

Relative density of the vapour/air-mixture at 20 °C (air = 1): 1.02

1.074 @25 °C

77 °F (USCG, 1999)

77 °F

30 °C c.c.

280.4 °F at 760 mmHg (USCG, 1999)

138-145 °C

142 °C @760 [mm Hg]

5.4 [mmHg]

Vapor pressure, kPa at 20 °C: 0.72

N-butyl chloroformate appears as a colorless liquid. Flash point near 70 °F. Very toxic by inhalation. Denser than water. Used to make other chemicals.

Liquid

A colorless liquid; [CAMEO]

COLOURLESS LIQUID WITH PUNGENT ODOUR.

Danger

H226: Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Danger

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P280, P284, P301+P317, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P320, P321, P330, P363, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Chemical: Carbonochloridic acid, butyl ester

Carbonochloridic acid, butyl ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Carbonochloridic acid, butyl ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 14-11-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/10341

Butylchloroformate: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Special Hazards of Combustion Products: Irritating and toxic hydrogen chloride and phosgene may be formed.

· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Flammable. Gives off irritating or toxic fumes (or gases) in a fire. Above 30 °C explosive vapour/air mixtures may be formed.

Inhalation of vapor irritates nose and throat and can cause delayed pulmonary edema. Liquid irritates eyes and causes severe skin burns and irreversible skin damage if allowed to remain. Can cause blindness. Ingestion causes burns of mouth and stomach. (USCG, 1999)

· TOXIC and/or CORROSIVE; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.

A skin, eye, and respiratory tract irritant; May cause pulmonary edema and burns to the eyes and skin; [ICSC] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline] See CHLOROFORMATES.

Excerpt from ERG Guide 155 [Substances - Toxic and/or Corrosive (Flammable / Water-Sensitive)]:

NO water. Use dry powder, carbon dioxide, alcohol-resistant foam. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

INHALATION: Remove victim from exposure; if breathing stops, administer artificial respiration; If breathing is difficult, give oxygen; call physician.

General First Aid:

· Wear positive pressure self-contained breathing apparatus (SCBA).

TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].

0.2 [ppm]

Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable dry plastic containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.

Excerpt from ERG Guide 155 [Substances - Toxic and/or Corrosive (Flammable / Water-Sensitive)]:

Immediate precautionary measure

Small spill:

Small spill:

Sore throat. Burning sensation. Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed.

Redness. Pain. Skin burns.

Redness. Pain. Severe deep burns.

Abdominal pain. Burning sensation. Shock or collapse.

Oil and Gas Drilling, Extraction, and Support activities

Carbonochloridic acid, butyl ester: ACTIVE